December 2001 1
© 2001 Actel Corporation
v3.0
eX Family FPGAs
Leading Edge Performance
•240 MHz System Performance
• 3.9ns Clock-to-Out (Pad-to-Pad)
• 350 MHz Internal Performance
Specifications
• 3,000 to 12,000 Available System Gates
• As Many as 512 Maximum Flip-Flops (Using CC Macros)
•0.22
µ CMOS Process Technology
• Up to 132 User-Programmable I/O Pins
Features
• High-Performance, Low-Power Antifuse FPGA
• LP/Sleep Mode for Additional Power Savings
• Advanced Small-footprint Packages
• Hot-Swap Compliant I/Os
• Single-Chip Solution
• Nonvolatile
•Live on power up
• Power-Up/Down Friendly (No Sequencing Required for
Supply Voltages)
• Configurable Weak-Resistor Pull-Up or Pull-Down for
Tristated Outputs during Power Up
• Individual Output Slew Rate Control
• 2.5V, 3.3V, and 5.0V Mixed Voltage Operation with 5.0V
Input Tolerance and 5.0V Drive Strength
• Software Design Support with Actel Designer Series and
Libero Tools
• Up to 100% Resource Utilization with 100% Pin Locking
• Deterministic Timing
• Unique In-System Diagnostic and Verification Capability
with Silicon Explorer II
• Boundary Scan Testing in Compliance with IEEE Standard
1149.1 (JTAG)
• Secure Programming Technology Prevents Reverse
Engineering and Design Theft
General Description
The eX family of FPGAs is a low-cost solution for low-power,
high-performance designs. The inherent low power
attributes of the antifuse technology, coupled with an
additional low static power mode, make these devices ideal
for power-sensitive applications. Fabricated with an
advanced 0.22µ CMOS antifuse technology, these devices
achieve high performance with no power penalty.
eX Product Profile
Device eX64 eX128 eX256
Capacity
System Gates
Typical Gates 3,000
2,000 6,000
4,000 12,000
8,000
Register Cells (Dedicated Flip-Flops) 64 128 256
Combinatorial Cells 128 256 512
Maximum User I/Os 84 100 132
Speed Grades –F, Std, –P –F, Std, –P –F, Std, –P
Temp erature Grades C, I C, I C, I
Package (by pin count)
TQFP
CSP 64, 100
49, 128 64, 100
49, 128 100
128, 180
eX Family FPGAs
2v3.0
Ordering Information
Product Plan
Application (Temperature Range)
Blank = Commercial (0 to +70°C)
I = Industrial (–40 to +85°C)
PP = Pre-production
Package Type
TQ = Thin (1.4mm) Quad Flat Pack
CS = Chip-Scale Package (0.8mm pitch)
Speed Grade
Blank = Stand ard Spe ed
–P = Approximately 30% Faster than Standard
–F = Approximately 40% Slower than Standard
Part Number
eX64 = 64 Dedicated Flip-Flops (3,000 System Gates)
eX128 = 128 Dedicated Flip-Flops (6,000 System Gates)
eX256 = 256 Dedicated Flip-Flops (12,000 System Gates)
Package Lead Count
eX128 TQ 100
–P
Speed Grade Application
–FStd–PCI
†
eX64 Device
64-Pin Thin Quad Flat Pack (TQFP) ✔✔✔ ✔✔
100-Pin Thin Quad Flat Pack (TQFP) ✔✔✔ ✔✔
49-Pin Chi p Scale Package (CSP) ✔✔✔ ✔✔
128-Pin Chip Scale Package (CSP) ✔✔✔ ✔✔
eX128 Device
64-Pin Thin Quad Flat Pack (TQFP) ✔✔✔ ✔✔
100-Pin Thin Quad Flat Pack (TQFP) ✔✔✔ ✔✔
49-Pin Chi p Scale Package (CSP) ✔✔✔ ✔✔
128-Pin Chip Scale Package (CSP) ✔✔✔ ✔✔
eX256 Device
100-Pin Thin Quad Flat Pack (TQFP) ✔✔✔ ✔✔
128-Pin Chip Scale Package (CSP) ✔✔✔ ✔✔
180-Pin Chip Scale Package (CSP) ✔✔✔ ✔✔
Contact your Actel sales representative for product availability.
Speed Grade: –P = Approx. 30% faster than Standard Availability: ✔= Available Applications: C = Commercial
–F = Approx. 40% slower than Standard I = Industrial
† Only Std Speed Grade
Plastic Device Resources
User I/Os (including clock buffers)
Device TQFP 64-Pin TQFP 100-Pin CSP 49-Pin CSP 128-Pin CSP 180-Pin
eX64 41 56 36 84 —
eX128 46 70 36 100 —
eX256 —81 —100 132
Package Definitions: TQFP = Thin Quad Flat Pack, CSP = Chip Scale Package
v3.0 3
eX Family FPGAs
eX Family Architecture
The eX family architecture uses a “sea-of-modules”
structure where the entire floor of the device is covered
with a grid of logic modules with virtually no chip area lost
to interconnect elements or routing. Interconnection
among these logic modules is achieved using Actel’s
patented metal-to-metal programmable antifuse
interconnect elements. Actel’s eX family provides two types
of logic modules, the register cell (R-cell) and the
combinatorial cell (C-cell).
The R-cell contains a flip-flop featuring asynchronous clear,
asynchronous preset, and clock enable (using the S0 and S1
lines) control signals (Figure 1). The R-cell registers
feature programmable clock polarity selectable on a
register-by-register basis. This provides additional flexibility
while allowing mapping of synthesized functions into the eX
FPGA. The clock source for the R-cell can be chosen from
either the hard-wired clock or the routed clock.
The C-cell implements a range of combinatorial functions
up to 5 inputs (Figure 2). Inclusion of the DB input and its
associated inverter function dramatically increases the
number of combinatorial functions that can be
implemented in a single module from 800 options in
previous architectures to more than 4,000 in the eX
architecture.
Module Organization
Actel has arranged all C-cell and R-cell logic modules into
horizontal banks called Clusters. The eX devices contain
one type of Cluster, which contains two C-cells and one
R-cell.
To increase design efficiency and device performance, Actel
has further organized these modules into SuperClusters
(Figure 3 on page 4). The eX devices contain one type of
SuperClusters, which are two-wide groupings of one type of
clusters.
Figure 1 • R-Cell
Figure 2 • C-Cell
DirectConnect
Input
CLKA,
CLKB,
Internal Logic
HCLK
CKS CKP
CLR
PSET
Y
DQ
Routed
Data Input
S0 S1
D0
D1
D2
D3
DB
A0 B0 A1 B1
Sa Sb
Y
eX Family FPGAs
4v3.0
Routing Resources
Clusters and SuperClusters can be connected through the
use of two innovative local routing resources called
FastConnect and DirectConnect, which enable extremely
fast and predictable interconnection of modules within
Clusters and SuperClusters (Figure 4). This routing
architecture also dramatically reduces the number of
antifuses required to complete a circuit, ensuring the
highest possible performance.
DirectConnect is a horizontal routing resource that provides
connections from a C-cell to its neighboring R-cell in a given
SuperCluster. DirectConnect uses a hard-wired signal path
requiring no programmable interconnection to achieve its
fast signal propagation time of less than 0.1 ns (–P speed
grade).
FastConnect enables horizontal routing between any two
logic modules within a given SuperCluster and vertical
routing with the SuperCluster immediately below it. Only
one programmable connection is used in a FastConnect
path, delivering maximum pin-to-pin propagation of 0.3 ns
(–P speed grade).
In addition to DirectConnect and FastConnect, the
architecture makes use of two globally oriented routing
resources known as segmented routing and high-drive
routing. Actel’s segmented routing structure provides a
variety of track lengths for extremely fast routing between
SuperClusters. The exact combination of track lengths and
antifuses within each path is chosen by the 100 percent
automatic place-and-route software to minimize signal
propagation delays.
Figure 3 •Cluster Organization
Figure 4 •DirectConnect and FastConnect for Type 1 SuperClusters
Type 1 SuperCluster
Cluster 1 Cluster 1
R-Cell C-Cell
D0
D1
D2
D3
DB
A0 B0 A1 B1
Sa Sb
Y
DirectConnect
Input
CLKA,
CLKB,
Internal Logic
HCLK
CKS CKP
CLR
PSET
YDQ
Routed
Data Input
S0
S1
Type 1 SuperClusters DirectConnect
• No antifuses
• 0.1 ns routing delay
FastConnect
• One antifuse
• 0.3 ns routing delay
Routing Segments
• Typically 2 antifuses
• Max. 5 antifuses
v3.0 5
eX Family FPGAs
Clock Resources
Actel’s high-drive routing structure provides three clock
networks. The first clock, called HCLK, is hardwired from
the HCLK buffer to the clock select MUX in each R-Cell.
HCLK cannot be connected to combinational logic. This
provides a fast propagation path for the clock signal,
enabling the 3.9ns clock-to-out (pad-to-pad) performance of
the eX devices. The hard-wired clock is tuned to provide a
clock skew of less than 0.1ns worst case.
The remaining two clocks (CLKA, CLKB) are global clocks
that can be sourced from external pins or from internal
logic signals within the eX device. CLKA and CLKB may be
connected to sequential cells or to combinational logic. If
CLKA or CLKB is sourced from internal logic signals then
the external clock pin cannot be used for any other input
and must be tied low or high. Figure 5 describes the clock
circuit used for the constant load HCLK. Figure 6 describes
the CLKA and CLKB circuit used in eX devices.
Other Architectural Features
Technology
Actel’s eX family is implemented on a high-voltage twin-well
CMOS process using 0.22µ design rules. The metal-to-metal
antifuse is made up of a combination of amorphous silicon
and dielectric material with barrier metals and has an “on”
state resistance of 25Ω with a capacitance of 1.0 fF for low
signal impedance.
Performance
The combination of architectural features described above
enables eX devices to operate with internal clock
frequencies exceeding 350 MHz for very fast execution of
complex logic functions. Thus, the eX family is an optimal
platform upon which to integrate the functionality
previously contained in CPLDs. In addition, designs that
previously would have required a gate array to meet
performance goals can now be integrated into an eX device
with dramatic improvements in cost and time to market.
Using timing-driven place-and-route tools, designers can
achieve highly deterministic device performance.
I/O Modules
Each I/O on an eX device can be configured as an input, an
output, a tristate output, or a bidirectional pin. Even without
the inclusion of dedicated I/O registers, these I/Os, in
combination with array registers, can achieve clock-to-out
(pad-to-pad) timing as fast as 3.9ns. I/O cells that have
embedded latches and flip-flops require instantiation in HDL
code; this is a design complication not encountered in eX
FPGAs. Fast pin-to-pin timing ensures that the device will
have little trouble interfacing with any other device in the
system, which in turn enables parallel design of system
components and reduces overall design time. See Table 1 for
more information.
Hot Swapping
eX I/Os are configured to be hot swappable. During power
up/down (or partial up/down), all I/Os are tristated. VCCA
and VCCI do not have to be stable during power up/down,
and they do not require a specific power-up or power-down
sequence in order to avoid damage to the eX devices. After
the eX device is plugged into an electrically active system,
the device will not degrade the reliability of or cause
damage to the host system. The device’s output pins are
driven to a high impedance state until normal chip
Figure 5 •eX HCLK Clock Pad
Figure 6 •eX Routed Clock Buffer
Constant Load
Clock Network
HCLKBUF
Clock Network
From Internal Logic
CLKBUF
CLKBUFI
CLKINT
CLKINTI
Table 1 •I/O Features
Function Description
Input Buf fer
Threshold
Selection
•TTL/3.3V LVTTL
Flexible
Output
Driver
•2.5V LVC MOS 2
•3.3V LVT TL
•5.0V TTL/CMOS
Output
Buffer “Hot-Swap” Capability
•I/O on an unpowered device does not
sink current
•Can be used for “cold sparing”
Selectable on an individual I/O basis
Individually selectable low-slew option
Power Up Individually selectable pull ups and pull
downs during power up (default is to power
up in tristate)
Enables deterministic power up of device
VCCA and VCCI can be powered in any order
eX Family FPGAs
6v3.0
operating conditions are reached. Please see the Actel SX-A
and RT54SX-S Devices in Hot-Swap and Cold-Sparing
Applications application note for more information on hot
swapping.
Power Requirements
The eX family supports mixed voltage operation and is
designed to tolerate 5.0V inputs in each case (Table 2).
Power consumption is extremely low due to the very short
distances signals, which are required to travel to complete a
circuit. Power requirements are further reduced because of
the small number of low-resistance antifuses in the path.
The antifuse architecture does not require active circuitry
to hold a charge (as do SRAM or EPROM), making it the
lowest-power architecture FPGA available today. Also, when
the device is in low power mode, the clock pins must not
float. They must be driven either HIGH or LOW. We
recommend that signals driving the clock pins be fixed at
HIGH or LOW rather than toggle to achieve maximum power
efficiency.
Low Power Mode
The new Actel eX family has been designed with a Low
Power Mode. This feature, activated with a special LP pin, is
particularly useful for battery-operated systems where
battery life is a primary concern. In this mode, the core of
the device is turned off and the device consumes minimal
power with low standby current. In addition, all input
buffers are turned off, and all outputs and bidirectional
buffers are tristated when the device enters this mode.
Since the core of the device is turned off, the states of the
registers are lost. The device must be re-initialized when
normal operating mode is achieved.
Boundary Scan Testing (BST)
All eX devices are IEEE 1149.1 compliant. eX devices offer
superior diagnostic and testing capabilities by providing
Boundary Scan Testing (BST) and probing capabilities.
These functions are controlled through the special test pins
in conjunction with the program fuse. The functionality of
each pin is described in Table 3. In the dedicated test mode,
TCK, TDI, and TDO are dedicated pins and cannot be used
as regular I/Os. In flexible mode, TMS should be set HIGH
through a pull-up resistor of 10kΩ. TMS can be pulled LOW
to initiate the test sequence.
Configuring Diagnostic Pins
The JTAG and Probe pins (TDI, TCK, TMS, TDO, PRA, and
PRB) are placed in the desired mode by selecting the
appropriate check boxes in the “Variation” dialog window.
This dialog window is accessible through the Design Setup
Wizard under the Tools menu in Actel's Designer software.
TRST Pin
When the “Reserve JTAG Reset” box is checked, the TRST
pin will become a Boundary Scan Reset pin. In this mode,
the TRST pin will function as an asynchronous, active-low
input to initialize or reset the BST circuit. An internal
pull-up resistor will be automatically enabled on the TRST
pin.
The TRST pin will function as a user I/O when the “Reserve
JTAG Reset” box is not checked. The internal pull-up
resistor will be disabled in this mode.
Dedicated Test Mode
When the “Reserve JTAG” box is checked, the eX device is
placed in Dedicated Test mode, which configures the TDI,
TCK, and TDO pins for BST or in-circuit verification with
Silicon Explorer II. An internal pull-up resistor is
automatically enabled on both the TMS and TDI pins. In
Dedicated Test Mode, TCK, TDI, and TDO are dedicated test
pins and become unavailable for pin assignment in the Pin
Editor. The TMS pin will function as specified in the IEEE
1149.1 (JTAG) Specification.
Flexible Mode
When the “Reserve JTAG” box is not selected (default
setting in Designer software), eX is placed in Flexible mode,
which allows the TDI, TCK, and TDO pins to function as user
I/Os or BST pins. In this mode the internal pull-up resistors
on the TMS and TDI pins are disabled. An external 10kΩ
pull-up resistor to VCCI is required on the TMS pin.
The TDI, TCK, and TDO pins are transformed from user I/Os
into BST pins when a rising edge on TCK is detected while
TMS is at logical low. Once the BST pins are in test mode
they will remain in BST mode until the internal BST state
Table 2 •Supply Voltages
VCCA VCCI
Maximum
Input
Tolerance
Maximum
Output
Drive
eX64
eX128
eX256
2.5V 2.5V 5.0V 2.5V
2.5V 3.3V 5.0V 3.3V
2.5V 5.0V 5.0V 5.0V
2.5V LP/Sleep Mode Specifications
Typical Conditions, VCCA, VCCI = 2.5V, TJ = 25° C
Product Low Power Standb y Current Units
eX64 100 µA
eX128 111 µA
eX256 134 µA
Table 3 •Boundary Scan Pin Functionality
Program Fuse Blown
(Dedicated Test Mode) Program Fuse Not Blown
(Flexible Mode)
TCK, TDI, TDO are
dedicated BST pins TCK, TDI, TDO are flexible
and may be used as I/Os
No need for pull-up resistor
for TMS Use a pull-up resistor of
10kΩ on TMS
v3.0 7
eX Family FPGAs
machine reaches the “logic reset” state. At this point the
BST pins will be released and will function as regular I/O
pins. The “logic reset” state is reached five TCK cycles after
the TMS pin is set to logical HIGH.
The Program fuse determines whether the device is in
Dedicated Test or Flexible mode. The default (fuse not
programmed) is Flexible mode.
Development Tool Support
The eX devices are fully supported by Actel’s line of FPGA
development tools, including the Actel Designer Series suite
and Libero, the FPGA design tool suite. Designer Series,
Actel’s suite of FPGA development tools for PCs and
Workstations, includes the ACTgen Macro Builder, timing
driven place-and-route, timing analysis tools, and fuse file
generation. Libero is a design management environment
that integrates the needed design tools, streamlines the
design flow, manages all design and log files, and passes
necessary design data between tools. Libero includes
Synplify, ViewDraw, Actel’s Designer Series, ModelSim HDL
Simulator, WaveFormer Lite, and Actel Silicon Explorer.
In addition, the eX devices contain internal probe circuitry
that provides built-in access to the output of every C-cell,
R-cell, and routed clock in the design, enabling 100-percent
real-time observation and analysis of a device's internal
logic nodes without design iteration. The probe circuitry is
accessed by Silicon Explorer II, an easy-to-use integrated
verification and logic analysis tool that can sample data at
100 MHz (asynchronous) or 66 MHz (synchronous). Silicon
Explorer II attaches to a PC’s standard COM port, turning
the PC into a fully functional 18-channel logic analyzer.
Silicon Explorer II allows designers to complete the design
verification process at their desks and reduces verification
time from several hours per cycle to only a few seconds.
eX Probe Circuit Control Pins
The Silicon Explorer II tool uses the boundary scan ports
(TDI, TCK, TMS and TDO) to select the desired nets for
verification. The selected internal nets are assigned to the
PRA/PRB pins for observation. Figure 7 illustrates the
interconnection between Silicon Explorer II and the FPGA
to perform in-circuit verification. The TRST pin is equipped
with an internal pull-up resistor. To remove the boundary
scan state machine from the reset state during probing, it is
recommended that the TRST pin be left floating.
Design Considerations
For prototyping, the TDI, TCK, TDO, PRA, and PRB pins
should not be used as input or bidirectional ports. Because
these pins are active during probing, critical signals input
through these pins are not available while probing. In
addition, the Security Fuse should not be programmed
because doing so disables the probe circuitry.
Figure 7 •Probe Setup
Silicon Explorer II
TDI
TCK
TDO
TMS
PRA
PRB
Serial Connection
16
Channels
eX FPGA
eX Family FPGAs
8v3.0
2.5V/3.3V/5.0V Operating Conditions
Absolute Maximum Ratings1
Symbol Parameter Limits Units
VCCI DC Supply V olta ge –0.3 to +6.0 V
VCCA DC Supply V olta ge –0.3 to +3.0 V
VIInput Voltage –0.5 to +5.5 V
VOOutput Voltage –0.5 to +VCCI + 0.5 V
TSTG Storage Temperature –65 to +150 °C
Note:
1. Stresses beyond those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device. Exposure
to absolute maximum rated conditions for extended periods
may affect device reliability. Devices should not be operated
outside the Recommended Operating Conditions.
Recommended Operating Conditions
Parameter Commercial Industrial Units
Temperature
Range10 to +70 –40 to +85 °C
2.5V Powe r Supp ly
Range (VCCA, VCCI)2.3-2.7 2.3-2.7 V
3.3V Powe r Supp ly
Range (VCCI)3.0-3.6 3.0-3.6 V
5.0V Powe r Supp ly
Range (VCCI)4.75-5.25 4.5-5.5 V
Note:
1. Ambient temperature (TA).
Typical eX Standby Current at 25°C
Product VCCA= 2.5V
VCCI = 2.5V VCCA = 2.5V
VCCI = 3.3V
eX64 397µA497µA
eX128 696µA795µA
eX256 698µA796µA
2.5V Electrical Specifications
Symbol
Commercial Industrial
Parameter Min. Max. Min. Max. Units
VOH
VDD = MIN, VI = VIH or VIL (IOH = -100 µA) 2.1 2.1 V
VDD = MIN, VI = VIH or VIL (IOH = -1 mA) 2.0 2.0 V
VDD = MIN, VI = VIH or VIL (IOH = -2 mA) 1.7 1.7 V
VOL
VDD = MIN, VI = VIH or VIL (IOL= 100µA) 0.2 0.2 V
VDD = MIN, VI = VIH or VIL (IOL= 1mA) 0.4 0.4 V
VDD = MIN,VI = VIH or VIL (IOL= 2 mA) 0.7 0.7 V
VIL Input Low Voltage, VOUT ≤ VVOL(max) -0.3 0.7 -0.3 0.7 V
VIH Input High Voltage, VOUT ≥ VVOH(min) 1.7 VDD + 0.3 1.7 VDD + 0.3 V
IOZ 3-St ate Ou tput Le akage Cur ren t, VOUT = VCCI or GND –10 10 –10 10 µA
tR, tF1,2 Input Transition Time tR, tF10 10 ns
CIO I/O Ca pacitance 10 10 pF
ICC3,4 Standby Current 1.0 3.0 mA
IV Curve5Can be derived from the IBIS model at www.actel.com/custsup/models/ibis.html.
Notes:
1. tR is the transition time from 0.7 V to 1.7V.
2. tF is the transition time from 1.7V to 0.7V.
3. ICC max Commercial –F = 5.0mA
4. ICC=ICCI + ICCA
v3.0 9
eX Family FPGAs
3.3V Electrical Specifications
5.0V Electrical Specifications
Symbol Parameter
Commercial Industrial
Min. Max. Min. Max. Units
VOH VDD = MIN, VI = VIH or VIL (IOH = -1mA) 0.9 VCCI 0.9 VCCI V
VDD = MIN, VI = VIH or VIL (IOH = -8mA) 2.4 2.4 V
VOL VDD = MIN, VI = VIH or VIL (IOL= 1mA) 0.1 VCCI 0.1 VCCI V
VDD = MIN, VI = VIH or VIL (IOL= 12mA) 0.4 0.4 V
VIL Input Low Voltage 0.8 0.8 V
VIH Input High Voltage 2.0 2.0 V
IIL/ IIH Input Leakage Current, VIN = VCCI or GND –10 10 –10 10 µA
IOZ 3-State Output Leakage Current, VOUT = VCCI or GND –10 10 –10 10 µA
tR, tF1,2 Input Transition Time tR, tF10 10 ns
CIO I/O Capacitance 10 10 pF
ICC3,4 Standby Current 1.5 10 mA
IV Curve5Can be derived from the IBIS model at www.actel.com/custsup/models/ibis.html.
Notes:
1. tR is the transition time from 0.8 V to 2.0V.
2. tF is the transition time from 2.0V to 0.8V.
3. ICC max Commercial –F=5.0mA
4. ICC=ICCI + ICCA
Symbol Parameter
Commercial Industrial
Min. Max. Min. Max. Units
VOH VDD = MIN, VI = VIH or VIL (IOH = -1mA) 0.9 VCCI 0.9 VCCI V
VDD = MIN, VI = VIH or VIL (IOH = -8mA) 2.4 2.4 V
VOL VDD = MIN, VI = VIH or VIL (IOL= 1mA) 0.1 VCCI 0.1 VCCI V
VDD = MIN, VI = VIH or VIL (IOL= 12mA) 0.4 0.4 V
VIL Input Low Voltage 0.8 0.8 V
VIH Input High Voltage 2.0 2.0 V
IIL/ IIH Input Leakage Current, VIN = VCCI or GND –10 10 –10 10 µA
IOZ 3-State Output Leakage Current, VOUT = VCCI or GND –10 10 –10 10 µA
tR, tF1,2 Input Transition Time tR, tF10 10 ns
CIO I/O Capacitance 10 10 pF
ICC3,4 Standby Current 15 20 mA
IV Curve5Can be derived from the IBIS model at www.actel.com/custsup/models/ibis.html
Notes:
1. tR is the transition time from 0.8 V to 2.0V.
2. tF is the transition time from 2.0V to 0.8V.
3. ICC max Commercial –F=20mA
4. ICC=ICCI + ICCA
eX Family FPGAs
10 v3.0
eX Dynamic Power Consumption – High Frequency
Notes:
1. Device filled with 16-bit counters.
2. VCCA, VCCI = 2.7V, device tested at room temperature.
eX Dynamic Power Consumption – Low Frequency
Notes:
1. Device filled with 16-bit counters.
2. VCCA, VCCI = 2.7V, device tested at room temperature.
0
50
100
150
200
250
300
50 100 150 200
Frequency (MHz)
Power (mW)
eX64
eX128
eX256
0
10
20
30
40
50
60
70
80
0 1020304050
Frequency (MHz)
Power (mW)
eX64
eX128
eX256
v3.0 11
eX Family FPGAs
Total Dynamic Power (mW)
System Power at 5%, 10%, and 15% Duty Cycle
0
20
40
60
80
100
120
140
160
180
0 25 50 75 100 125 150 175 200
Fr e que ncy (MHz)
Total Dynamic Power (mW)
32-bi t Dec ode r
8 x 8-bi t Counte rs
SDRAM Controller
0
2,000
4,000
6,000
8,000
10,000
12,000
0 102030405060
Fr eque ncy ( M Hz)
System Power (uW)
5% DC
10% DC
15% DC
eX Family FPGAs
12 v3.0
Junction Temperature (TJ)
The temperature variable in the Designer Series software
refers to the junction temperature, not the ambient
temperature. This is an important distinction because the
heat generated from dynamic power consumption is usually
hotter than the ambient temperature. Equation 1, shown
below, can be used to calculate junction temperature.
Junction Temperature = ∆T + Ta(1)
Where:
Ta = Ambient Temperature
∆T = Temperature gradient between junction (silicon) and
ambient
∆T = θja * P
P = Power
θja = Junction to ambient of package. θja numbers are
located in the Package Thermal Characteristics section
below.
Package Thermal Characteristics
The device junction to case thermal characteristic is θjc,
and the junction to ambient air characteristic is θja. The
thermal characteristics for θja are shown with two different
air flow rates.
The maximum junction temperature is 150°C.
A sample calculation of the absolute maximum power
dissipation allowed for a TQFP 100-pin package at
commercial temperature and still air is as follows:
Package Type Pin Count θjc
θja
Still Air θja
300 ft/min Units
Thin Quad Flat Pack (TQFP ) 64 14 51.2 35 °C/W
Thin Quad Flat Pack (TQFP ) 100 12 37.5 30 °C/W
Chip Scale Package (CSP) 49 3 71.3 56.0 °C/W
Chip Scale Package (CSP) 128 3 54.1 47.8 °C/W
Chip Scale Package (CSP) 180 3 57.8 51 °C/W
Maximum Power Allowe d Max. junction temp. (°C) Max. ambient temp. (°C)–
θja(°C/W)
--------------------------------------------------------------------------------------------------------------------------------- 150°C70°C–
37.5°C/W
-----------------------------------2.1W===
v3.0 13
eX Family FPGAs
eX Timing Model*
Hard-Wired Clock
External Setup = tINYH + tIRD1 + tSUD – tHCKH
= 0.7 + 0.3 + 0.5 – 1.1 = 0.4 ns
Clock-to-Out (Pad-to-Pad), typical
=t
HCKH + tRCO + tRD1 + tDHL
= 1.1 + 0.6 + 0.3 + 2.6 = 4.6 ns
Routed Clock
External Setup = tINYH + tIRD2 + tSUD – tRCKH
= 0.7 + 0.4 + 0.5 – 1.3= 0.3 ns
Clock-to-Out (Pad-to-Pad), typical
=t
RCKH + tRCO + tRD1 + tDHL
= 1.3+ 0.6 + 0.3 + 2.6 = 4.8 ns
*Values shown for eX128–P, worst-case commercial conditions (5.0V, 35pF Pad Load).
Input Delays Internal Delays Predicted
Routing
Delays
Output Delays
I/O Module
tINYH= 0.7 ns tIRD2 = 0.4 ns
tIRD1 = 0.3 ns Combinatorial
Cell I/O Module
tDHL = 2.6 ns
tRD8 = 1.2 ns
tRD4 = 0.7 ns
tRD1 = 0.3 ns
tPD = 0.7 ns
I/O Module
tDHL = 2.6 ns
tRD1 = 0.3 ns
tRCO= 0.6 ns
I/O Module
tINYH= 0.7 ns
tENZL= 1.9 ns
tSUD = 0.5 ns
tHD = 0.0 ns
tSUD = 0.5ns
tHD = 0.0 ns
tRCKH= 1.3 ns
(100% Load)
tIRD1 = 0.3 ns
DQ
Register
Cell
Routed
Clock
tRD1 = 0.3 ns
tRCO= 0.6 ns
tHCKH= 1.1 ns
DQ
Register
Cell
Hard-Wired
Clock
I/O Module
tDHL = 2.6 ns
tENZL= 1.9 ns
eX Family FPGAs
14 v3.0
Output Buffer Delays
AC Test Loads
Input Buffer Delays C-Cell Delays
To AC test loads (shown below)
PAD
D
E
TRIBUFF
In VCC GND
50%
Out
VOL
VOH
1.5V
tDLH
50%
1.5V
tDHL
En VCC GND
50%
Out VOL
1.5V
tENZL
50%
10%
tENLZ
En VCC GND
50%
Out
GND
VOH
1.5V
tENZH
50%
90%
tENHZ
VCC
Load 1
(Used to measure Load 2
(Used to measure enable delays)
35 pF
To the output VCC GND
35 pF
To the output R to VCC for tPZL
R to GND for tPZH
R = 1 kΩ
propagatio n dela y)
under test
under test
Load 3
(Used to measure disable delays)
VCC GND
5 pF
To the output R to VCC for tPLZ
R to GND for tPHZ
R = 1 kΩ
under test
PAD Y
INBUF
In 3V 0V
1.5V
Out
GND
VCC
50%
1.5V
50%
S
A
BY
S, A or B
Out
GND
VCC
50%
tPD
Out
GND
GND
VCC
50%
50% 50%
VCC
50% 50%
tPD
tPD
tPD
v3.0 15
eX Family FPGAs
Cell Timing Characteristics
Timing Characteristics
Timing characteristics for eX devices fall into three
categories: family-dependent, device-dependent, and
design-dependent. The input and output buffer
characteristics are common to all eX family members.
Internal routing delays are device-dependent. Design
dependency means actual delays are not determined until
after placement and routing of the user’s design are
complete. Delay values may then be determined by using
the Timer utility or performing simulation with post-layout
delays.
Critical Nets and Typical Nets
Propagation delays are expressed only for typical nets,
which are used for initial design performance evaluation.
Critical net delays can then be applied to the most timing
critical paths. Critical nets are determined by net property
assignment prior to placement and routing. Up to
six percent of the nets in a design may be designated as
critical.
Long Tracks
Some nets in the design use long tracks. Long tracks are
special routing resources that span multiple rows, columns,
or modules. Long tracks employ three to five antifuse
connections. This increases capacitance and resistance,
resulting in longer net delays for macros connected to long
tracks. Typically, no more than six percent of nets in a fully
utilized device require long tracks. Long tracks contribute
approximately 4 ns to 8.4 ns delay. This additional delay is
represented statistically in higher fanout routing delays.
Timing Derating
eX devices are manufactured with a CMOS process.
Therefore, device performance varies according to
temperature, voltage, and process changes. Minimum
timing parameters reflect maximum operating voltage,
minimum operating temperature, and best-case processing.
Maximum timing parameters reflect minimum operating
voltage, maximum operating temperature, and worst-case
processing.
Temperature and Voltage Derating Factors
(Normalized to Worst-Case Commercial, TJ = 70°C, VCCA = 2.3V)
(Positive edge triggered)
D
CLK CLR
Q
D
CLK
Q
CLR
tHPWH,
tWASYN
tHD
tSUD tHP
tHPWL,
tRCO
tCLR
tRPWL
tRPWH
PRESET
tPRESET
PRESET
Flip-Flops
VCCA
Junction Temperature (TJ)
–55 –40 0 25 70 85 125
2.3 0.75 0.79 0.88 0.89 1.00 1.04 1.16
2.5 0.70 0.74 0.82 0.83 0.93 0.97 1.08
2.7 0.66 0.69 0.79 0.79 0.88 0.92 1.02
eX Family FPGAs
16 v3.0
eX Family Timing Characteristics
(Worst-Case Commercial Conditions, VCCA = 2.3V, TJ = 70°C)
‘–P’ Speed ‘Std’ Speed ‘–F’ Speed
Parameter Description Min. Max. Min. Max. Min. Max. Units
C-Cell Propagation Delays1
tPD Internal Array Module 0.7 1.0 1.4 ns
Predicted Routing Delays2
tDC FO=1 Ro uting Delay, DirectConnect 0.1 0.1 0.2 ns
tFC FO=1 Ro uting Del ay, Fa stConne ct 0.3 0.5 0.7 ns
tRD1 FO=1 Ro uting Delay 0.3 0.5 0.7 n s
tRD2 FO=2 Ro uting Delay 0.4 0.6 0.8 n s
tRD3 FO=3 Ro uting Delay 0.5 0.8 1.1 n s
tRD4 FO=4 Ro uting Delay 0.7 1.0 1.3 n s
tRD8 FO=8 Ro uting Delay 1.2 1.7 2.4 n s
tRD12 FO=12 Routing Delay 1.7 2.5 3 .5 ns
R-Cell Timing
tRCO Sequential Clock-to-Q 0.6 0.9 1.3 ns
tCLR Asynchronous Clear-to-Q 0.6 0.8 1.2 ns
tPRESET Asynchronous Preset-to-Q 0.7 0.9 1.3 ns
tSUD Flip-Flop Data Input Set-Up 0.5 0.7 1.0 ns
tHD Flip-Flop Data Input Hold 0.0 0.0 0.0 ns
tWASYN Asynchronous Pulse Width 1.3 1.9 2.6 ns
tRECASYN Asynchronous Recovery Time 0.3 0.5 0.7 ns
tHASYN Asynchronous Hold Time 0.3 0.5 0.7 ns
2.5V Input Module Propagation Delays
tINYH Input Data Pad-to-Y HIGH 0.6 0.9 1.3 ns
tINYL Input Data Pad-to-Y LOW 0.8 1.1 1.5 ns
3.3V Input Module Propagation Delays
tINYH Input Data Pad-to-Y HIGH 0.7 1.0 1.4 ns
tINYL Input Data Pad-to-Y LOW 0.9 1.3 1.8 ns
5.0V Input Module Propagation Delays
tINYH Input Data Pad-to-Y HIGH 0.7 1.0 1.4 ns
tINYL Input Data Pad-to-Y LOW 0.9 1.3 1.8 ns
Input Module Predicted Routing Delays2
tIRD1 FO= 1 Routing Del ay 0.3 0.4 0.5 ns
tIRD2 FO= 2 Routing Del ay 0.4 0.6 0.8 ns
tIRD3 FO= 3 Routing Del ay 0.5 0.8 1.1 ns
tIRD4 FO= 4 Routing Del ay 0.7 1.0 1.3 ns
tIRD8 FO= 8 Routing Del ay 1.2 1.7 2.4 ns
tIRD12 FO=12 Routing Delay 1 .7 2.5 3.5 ns
Notes:
1. For dual-module macros, use tPD + tRD1 + tPDn, tRCO + tRD1 + tPDn or tPD1 + tRD1 + tSUD, whichever is appropriate.
2. Routing delays are for typical designs across worst-case operating conditions. These parameters should be used for estimating device
performance. Post-route timing analysis or simulation is required to determine actual worst-case performance.
v3.0 17
eX Family FPGAs
eX Family Timing Characteristics (Continued)
(Worst-Case Commercial Conditions VCCA = 2.3V, VCCI = 4.75V, TJ = 70°C)
‘–P’ Speed ‘Std’ Speed ‘–F’ Speed
Parameter Description Min. Max. Min. Max. Min. Max. Units
Dedicated (Hard-Wired) Array Clock Networks
tHCKH Input LOW to HIGH
(Pad to R-Cell Input) 1.1 1.6 2.3 ns
tHCKL Input HIGH to LOW
(Pad to R-Cell Input) 1.1 1.6 2.3 ns
tHPWH Minimum Pu lse Width HIGH 1.4 2.0 2.8 ns
tHPWL Minimum Pulse Width LOW 1.4 2.0 2.8 ns
tHCKSW Maximum Skew <0.1 <0.1 <0.1 ns
tHP Minimum Period 2.8 4.0 5.6 ns
fHMAX Maximum Frequency 357 250 178 MHz
Routed Array Clock Networks
tRCKH Input LOW to HIGH (Light Load)
(Pad to R-Cell Input) MAX. 1.1 1.6 2.2 ns
tRCKL Input HIGH to LOW (Light Load)
(Pad to R-Cell Input) MAX. 1.0 1.4 2.0 ns
tRCKH Input LOW to HIGH (50% Load)
(Pad to R-Cell Input) MAX. 1.2 1.7 2.4 ns
tRCKL Input HIGH to LOW (50% Load)
(Pad to R-Cell Input) MAX. 1.2 1.7 2.4 ns
tRCKH Input LOW to HIGH (100% Load)
(Pad to R-Cell Input) MAX. 1.3 1.9 2.6 ns
tRCKL Input HIGH to LOW (100% Load)
(Pad to R-Cell Input) MAX. 1.3 1.9 2.6 ns
tRPWH Min. Pulse Width HIGH 1.5 2.1 3.0 ns
tRPWL Min. Pulse Width LOW 1.5 2.1 3.0 ns
tRCKSW1Maximum Skew (Light Load) 0.2 0.3 0.4 ns
tRCKSW1Maximum Skew (50% Load) 0.1 0.2 0.3 ns
tRCKSW1Maximum Skew (100% Load) 0.1 0.1 0.2 ns
Note:
1. Clock skew improves as the clock network becomes more heavily loaded.
eX Family FPGAs
18 v3.0
eX Family Timing Characteristics (Continued)
(Worst-Case Commercial Conditions VCCA = 2.3V, VCCI = 2.3V or 3.0V, TJ = 70°C)
‘–P’ Speed ‘Std’ Speed ‘–F’ Speed
Parameter Description Min. Max. Min. Max. Min. Max. Units
Dedicated (Hard-Wired) Array Clock Networks
tHCKH Input LOW to HIGH
(Pad to R-Cell Input) 1.1 1.6 2.3 ns
tHCKL Input HIGH to LOW
(Pad to R-Cell Input) 1.1 1.6 2.3 ns
tHPWH Minimum Pu lse Width HIGH 1.4 2.0 2.8 ns
tHPWL Minimum Pulse Width LOW 1.4 2.0 2.8 ns
tHCKSW Maximum Skew <0.1 <0.1 <0.1 ns
tHP Minimum Period 2.8 4.0 5.6 ns
fHMAX Maximum Frequency 357 250 178 MHz
Routed Array Clock Networks
tRCKH Input LOW to HIGH (Light Load)
(Pad to R-Cell Input) MAX. 1.0 1.4 2.0 ns
tRCKL Input HIGH to LOW (Light Load)
(Pad to R-Cell Input) MAX. 1.0 1.4 2.0 ns
tRCKH Input LOW to HIGH (50% Load)
(Pad to R-Cell Input) MAX. 1.2 1.7 2.4 ns
tRCKL Input HIGH to LOW (50% Load)
(Pad to R-Cell Input) MAX. 1.2 1.7 2.4 ns
tRCKH Input LOW to HIGH (100% Load)
(Pad to R-Cell Input) MAX. 1.4 2.0 2.8 ns
tRCKL Input HIGH to LOW (100% Load)
(Pad to R-Cell Input) MAX. 1.4 2.0 2.8 ns
tRPWH Min. Pulse Width HIGH 1.4 2.0 2.8 ns
tRPWL Min. Pulse Width LOW 1.4 2.0 2.8 ns
tRCKSW1Maximum Skew (Light Load) 0.2 0.3 0.4 ns
tRCKSW1Maximum Skew (50% Load) 0.2 0.2 0.3 ns
tRCKSW1Maximum Skew (100% Load) 0.1 0.1 0.2 ns
Note:
1. Clock skew improves as the clock network becomes more heavily loaded.
v3.0 19
eX Family FPGAs
eX Family Timing Characteristics (Continued)
(Worst-Case Commercial Conditions VCCA = 2.3V, TJ = 70°C)
‘–P’ Speed ‘Std’ Speed ‘–F’ Speed
Parameter Description Min. Max. Min. Max. Min. Max. Units
2. 5V LVTTL Output Module Timing1 (VCCI = 2.3V)
tDLH Data-to-Pad LOW to HIGH 3.3 4.7 6.6 ns
tDHL Data-to-Pad HIGH to LOW 3.5 5.0 7.0 ns
tDHLS Data-to-Pad H IGH to LOW—Low Slew 11.6 16.6 23.2 ns
tENZL Enable-to-Pad, Z to L 2.5 3.6 5.1 ns
tENZLS Enable-to-Pad Z to L—Low Slew 11.8 16.9 23.7 ns
tENZH Enable-to-Pad, Z to H 3.4 4.9 6.9 ns
tENLZ Enable-to-Pad, L to Z 2.1 3.0 4.2 ns
tENHZ Enable-to-Pad, H to Z 2.4 5.67 7.94 ns
dTLH Delta Delay vs. Load LOW to HIGH 0.034 0.046 0.066 ns/pF
dTHL Delta Delay vs. Load HIGH to LOW 0.016 0.022 0.05 ns/pF
dTHLS Delta Delay vs. Load HIGH to LOW—Low
Slew 0.05 0.072 0.1 ns/pF
3. 3V LVTTL Output Module Timing1 (VCCI = 3.0V)
tDLH Data-to-Pad LOW to HIGH 2.8 4.0 5.6 ns
tDHL Data-to-Pad HIGH to LOW 2.7 3.9 5.4 ns
tDHLS Data-to-Pad H IGH to LOW—Low Slew 9.7 13.9 19.5 ns
tENZL Enable-to-Pad, Z to L 2.2 3.2 4.4 ns
tENZLS Enable-to-Pad Z to L—Low Slew 9.7 13.9 19.6 ns
tENZH Enable-to-Pad, Z to H 2.8 4.0 5.6 ns
tENLZ Enable-to-Pad, L to Z 2.8 4.0 5.6 ns
tENHZ Enable-to-Pad, H to Z 2.6 3.8 5.3 ns
dTLH Delta Delay vs. Load LOW to HIGH 0.02 0.03 0.046 ns/pF
dTHL Delta Delay vs. Load HIGH to LOW 0.016 0.022 0.05 ns/pF
dTHLS Delta Delay vs. Load HIGH to LOW—Low
Slew 0.05 0.072 0.1 ns/pF
5.0 V TTL Outp ut Mo dule Timin g1 (VCCI = 4.75V)
tDLH Data-to-Pad LOW to HIGH 2.0 2.9 4.0 ns
tDHL Data-to-Pad HIGH to LOW 2.6 3.7 5.2 ns
tDHLS Data-to-Pad H IGH to LOW—Low Slew 6.8 9.7 13.6 ns
tENZL Enable-to-Pad, Z to L 1.9 2.7 3.8 ns
tENZLS Enable-to-Pad Z to L—Low Slew 6.8 9.8 13.7 ns
tENZH Enable-to-Pad, Z to H 2.1 3.0 4.1 ns
tENLZ Enable-to-Pad, L to Z 3.3 4.8 6.6 ns
Note:
1. Delays based on 35 pF loading.
eX Family FPGAs
20 v3.0
Pin Description
CLKA/B Clock A and B
These pins are clock inputs for clock distribution networks.
Input levels are compatible with standard TTL or LVTTL
specifications. The clock input is buffered prior to clocking
the R-cells. If not used, this pin must be set LOW or HIGH on
the board. It must not be left floating.
GND Ground
LOW supply voltage.
HCLK Dedicated (Hard-wired)
Array Clock
This pin is the clock input for sequential modules. Input
levels are compatible with standard TTL or LVTTL
specifications. This input is directly wired to each R-cell and
offers clock speeds independent of the number of R-cells
being driven. If not used, this pin must be set LOW or HIGH
on the board. It must not be left floating.
I/O Input/Output
The I/O pin functions as an input, output, tristate, or
bidirectional buffer. Based on certain configurations, input
and output levels are compatible with standard TTL or
LVTTL specifications. Unused I/O pins are automatically
tristated by the Designer Series software.
LP Low Power Pin
Controls the low power mode of the eX devices. The device
is placed in the low power mode by connecting the LP pin
to logic high. In low power mode, all I/Os are tristated, all
input buffers are turned OFF, and the core of the devices is
turned OFF. To exit the low power mode, the LP pin must
be set LOW. The device enters the low power mode 800ns
after the LP pin is driven to a logic HIGH. It will resume
normal operation in 200µs after the LP pin is driven to a
logic low. The logic high level on the LP pin must never
exceed the VSV voltage. Refer to the VSV pin description.
NC No Connection
This pin is not connected to circuitry within the device.
These pins can be driven to any voltage or can be left
floating with no effect on the operation of the device.
PRA, I/O
PRB, I/O Probe A/B
The Probe pin is used to output data from any user-defined
design node within the device. This independent diagnostic
pin can be used in conjunction with the other probe pin to
allow real-time diagnostic output of any signal path within
the device. The Probe pin can be used as a user-defined I/O
when verification has been completed. The pin’s probe
capabilities can be permanently disabled to protect
programmed design confidentiality.
TCK, I/O Test Clock
Test clock input for diagnostic probe and device
programming. In flexible mode, TCK becomes active when
the TMS pin is set LOW (refer to Table 3 on page 6). This pin
functions as an I/O when the boundary scan state machine
reaches the “logic reset” state.
TDI, I/O Test Data Input
Serial input for boundary scan testing and diagnostic probe.
In flexible mode, TDI is active when the TMS pin is set LOW
(refer to Table 3 on page 6). This pin functions as an I/O
when the boundary scan state machine reaches the “logic
reset” state.
TDO, I/O Test Data Output
Serial output for boundary scan testing. In flexible mode,
TDO is active when the TMS pin is set LOW (refer to Table 3
on page 6). This pin functions as an I/O when the boundary
scan state machine reaches the "logic reset" state. When
Silicon Explorer is being used, TDO will act as an output
when the "checksum" command is run. It will return to user
IO when "checksum" is complete.
TMS Test Mode Select
The TMS pin controls the use of the IEEE 1149.1 Boundary
Scan pins (TCK, TDI, TDO, TRST). In flexible mode when
the TMS pin is set LOW, the TCK, TDI, and TDO pins are
boundary scan pins (refer to Table 3 on page 6). Once the
boundary scan pins are in test mode, they will remain in that
mode until the internal boundary scan state machine
reaches the “logic reset” state. At this point, the boundary
scan pins will be released and will function as regular I/O
pins. The “logic reset” state is reached 5 TCK cycles after
the TMS pin is set HIGH. In dedicated test mode, TMS
functions as specified in the IEEE 1149.1 specifications.
TRST, I/O Boundary Scan Reset Pin
Once it is configured as the JTAG Reset pin, the TRST pin
functions as an active-low input to asynchronously initialize
or reset the boundary scan circuit. The TRST pin is equipped
with an internal pull-up resistor. This pin functions as an I/O
when the “Reserve JTAG Reset Pin” is not selected in
Designer.
VCCI Supply Voltage
Supply voltage for I/Os. See Table 2 on page 6.
VCCA Supply Voltage
Supply voltage for Array. See Table 2 on page 6.
VSV Programming Voltage
Supply voltage used for device programming. This pin can be
tied to VCCA or VCCI but cannot exceed 3.6V. If the security
fuse is programmed, the VSV limit is extended to 6.0V.
v3.0 21
eX Family FPGAs
Package Pin Assignments
64-Pin TQFP (Top View)
1
64-Pin
TQFP
64
eX Family FPGAs
22 v3.0
64-Pin TQFP
Pin Num ber eX64
Function eX128
Function Pin Number eX64
Function eX128
Function
1GND GND 33 GND GND
2TDI, I/O TDI, I/O 34 I/O I/O
3I/O I/O 35 I/O I/O
4TMS TMS 36 VSV1VSV1
5GND GND 37 VCCI VCCI
6VCCI VCCI 38 I/O I/O
7I/O I/O 39 I/O I/O
8I/O I/O 40 NC I/O
9NC I/O 41 NC I/O
10 NC I/O 42 I/O I/O
11 TRST, I/O TRST, I/O 43 I/O I/O
12 I/O I/O 44 VCCA VCCA
13 NC I/O 45 GND/LP1GND/ LP1
14 GND GND 46 GND GND
15 I/O I/O 47 I/O I/O
16 I/O I/O 48 I/O I/O
17 I/O I/O 49 I/O I/O
18 I/O I/O 50 I/O I/O
19 VCCI VCCI 51 I/O I/O
20 I/O I/O 52 VCCI VCCI
21 PRB, I/O PRB, I/O 53 I/O I/O
22 VCCA VCCA 54 I/O I/O
23 GND GND 55 CLKA CLKA
24 I/O I/O 56 CLKB CLKB
25 HCLK HCLK 57 VCCA VCCA
26 I/O I/O 58 GND GND
27 I/O I/O 59 PRA, I/O PRA, I/O
28 I/O I/O 60 I/O I/O
29 I/O I/O 61 VCCI VCCI
30 I/O I/O 62 I/O I/O
31 I/O I/O 63 I/O I/O
32 TDO, I/O TDO, I/O 64 TCK, I/O TCK, I/O
1. Please read the VSV and LP pin descriptions for restrictions on their use.
v3.0 23
eX Family FPGAs
Package Pin Assignments (Continued)
100-Pin TQFP (Top View)
1
100-Pin
TQFP
100
eX Family FPGAs
24 v3.0
100-TQFP
Pin Number eX64
Function eX128
Function eX256
Function Pin Number eX64
Function eX128
Function eX256
Function
1 GND GND GND 51 GND GND GND
2 TD I, I /O TDI, I/O TDI, I/O 52 NC NC I/O
3 NC NC I/O 53 NC NC I/O
4 NC NC I/O 54 NC NC I/O
5 NC NC I/O 55 I/O I/O I/O
6 I/O I/O I/O 56 I/O I/O I/O
7 TMS TMS TMS 57 VSV1VSV1VSV1
8V
CCI VCCI VCCI 58 VCCI VCCI VCCI
9 GND GND GND 59 NC I/O I/O
10 NC I/O I/O 60 I/O I/O I/O
11 NC I/O I/O 61 NC I/O I/O
12 I/O I/O I/O 62 I/O I/O I/O
13 NC I/O I/O 63 NC I/O I/O
14 I/O I/O I/O 64 I/O I/O I/O
15 NC I/O I/O 65 NC I/O I/O
16 TRST, I/O TRST, I/O TRST, I/O 66 I/O I/O I/O
17 NC I/O I/O 67 VCCA VCCA VCCA
18 I/O I/O I/O 68 GND/LP1GND/LP1GND/LP1
19 NC I/O I/O 69 GND GND GND
20 VCCI VCCI VCCI 70 I/O I/O I/O
21 I/O I/O I/O 71 I/O I/O I/O
22 NC I/O I/O 72 NC I/O I/O
23 NC NC I/O 73 NC NC I/O
24 NC NC I/O 74 NC NC I/O
25 I/O I/O I/O 75 NC NC I/O
26 I/O I/O I/O 76 NC I/O I/O
27 I/O I/O I/O 77 I/O I/O I/O
28 I/O I/O I/O 78 I/O I/O I/O
29 I/O I/O I/O 79 I/O I/O I/O
30 I/O I/O I/O 80 I/O I/O I/O
31 I/O I/O I/O 81 I/O I/O I/O
32 I/O I/O I/O 82 VCCI VCCI VCCI
33 I/O I/O I/O 83 I/O I/O I/O
34 PRB, I/O PRB, I/O PRB, I/O 84 I/O I/O I/O
35 VCCA VCCA VCCA 85 I/O I/O I/O
36 GND GND GND 86 I/O I/O I/O
37 NC NC NC 87 CLKA CLKA CLKA
38 I/O I/O I/O 88 CLKB CLKB CLKB
39 HCLK HCLK HCLK 89 NC NC NC
40 I/O I/O I/O 90 VCCA VCCA VCCA
41 I/O I/O I/O 91 GND GND GND
42 I/O I/O I/O 92 PRA, I/O PRA, I/O PRA, I/O
43 I/O I/O I/O 93 I/O I/O I/O
44 VCCI VCCI VCCI 94 I/O I/O I/O
45 I/O I/O I/O 95 I/O I/O I/O
46 I/O I/O I/O 96 I/O I/O I/O
47 I/O I/O I/O 97 I/O I/O I/O
48 I/O I/O I/O 98 I/O I/O I/O
49 TDO, I/O TDO, I/O TDO, I/O 99 I/O I/O I/O
50 NC I/O I/O 100 TCK, I/O TCK, I/O TC K , I/O
1. Please read the VSV and LP pin descriptions for restrictions on their use.
v3.0 25
eX Family FPGAs
Package Pin Assignments (Continued)
49-Pin CSP (Top View)
49-Pin CSP
Pin Num ber eX64
Function eX128
Function Pin Number eX64
Function eX128
Function
A1 I/O I/O D5 VSV1VSV1
A2 I/O I/O D6 I/O I/O
A3 I/O I/O D7 I/O I/O
A4 I/O I/O E1 I/O I/O
A5 VCCA VCCA E2 TRST, I/O TRST, I/O
A6 I/O I/O E3 VCCI VCCI
A7 I/O I/O E4 GND GND
B1 TCK, I/O TCK, I/O E5 I/O I/O
B2 I/O I/O E6 I/O I/O
B3 I/O I/O E7 VCCI VCCI
B4 PRA, I/O PRA, I/O F1 I/O I/O
B5 CLKA CLKA F2 I/O I/O
B6 I/O I/O F3 I/O I/O
B7 GND/LP1GND/LP1F4 I/O I/O
C1 I/O I/O F5 HCLK HCLK
C2 TDI, I/O TDI, I/O F6 I/O I/O
C3 VCCI VCCI F7 TDO, I/O TDO, I/O
C4 GND GND G1 I/O I/O
C5 CLKB CLKB G2 I/O I/O
C6 VCCA VCCA G3 I/O I/O
C7 I/O I/O G4 PRB, I/O PRB, I/O
D1 I/O I/O G5 VCCA VCCA
D2 TMS TMS G6 I/O I/O
D3 GND GND G7 I/O I/O
D4 GND GND
1. Please read the VSV and LP pin descriptions for restrictions on their use.
1234567
A
B
C
D
E
F
G
A1 Ball Pad Corner
eX Family FPGAs
26 v3.0
Package Pin Assignments (Continued)
128-Pin CSP (Top View)
1234
5678910 11 12
A
B
C
D
E
F
G
H
J
K
L
M
A1 Ball Pad Corner
v3.0 27
eX Family FPGAs
128-CSP
Pin Number eX64
Function eX128
Function eX256
Function Pin Number eX64
Function eX128
Function eX256
Function
A1 I/O I/O I/O D4 I/O I/O I/O
A2 TCK, I/O TCK, I/O TCK, I/O D5 I/O I/O I/O
A3 VCCI VCCI VCCI D6 GND GND GND
A4 I/O I/O I/O D7 I/O I/O I/O
A5 I/O I/O I/O D8 GND GND GND
A6 VCCA VCCA VCCA D9 I/O I/O I/O
A7 I/O I/O I/O D10 I/O I/O I/O
A8 I/O I/O I/O D11 I/O I/O I/O
A9 VCCI VCCI VCCI D12 VCCI VCCI VCCI
A10 I/O I/O I/O E1 NC I/O I/O
A11 I/O I/O I/O E2 VCCI VCCI VCCI
A12 I/O I/O I/O E3 I/O I/O I/O
B1 TMS TMS TMS E4 GND GND GND
B2 I/O I/O I/O E9 GND GND GND
B3 I/O I/O I/O E10 I/O I/O I/O
B4 I/O I/O I/O E11 GND/LP1GND/LP1GND/LP1
B5 I/O I/O I/O E12 VCCA VCCA VCCA
B6 PRA, I/O PRA, I/O PRA, I/O F 1 NC I/O I/O
B7 CLKB CLKB CLKB F2 NC I/O I/O
B8 I/O I/O I/O F3 NC I/O I/O
B9 I/O I/O I/O F4 I/O I/O I/O
B10 I/O I/O I/O F9 GND GND GND
B11 GND GND GND F10 NC I/O I/O
B12 I/O I/O I/O F11 I/O I/O I/O
C1 I/O I/O I/O F12 I/O I/O I/O
C2 TDI, I/O TDI, I/O TDI, I/O G1 NC I/O I/O
C3 I/O I/O I/O G2 TRST, I/O TRST, I/O TRST, I/O
C4 I/O I/O I/O G3 I/O I/O I/O
C5 I/O I/O I/O G4 GND GND GND
C6 CLKA CLKA CLKA G9 GND GND GND
C7 I/O I/O I/O G10 NC I/O I/O
C8 I/O I/O I/O G11 I/O I/O I/O
C9 I/O I/O I/O G12 NC I/O I/O
C10 NC I/O I/O H1 GND GND GND
C11 NC I/O I/O H2 I/O I/O I/O
C12 I/O I/O I/O H3 VCCI VCCI VCCI
D1 NC I/O I/O H4 GND GND GND
D2 I/O I/O I/O H9 I/O I/O I/O
D3 I/O I/O I/O H10 VCCI VCCI VCCI
eX Family FPGAs
28 v3.0
H11 VSV1VSV1VSV1K12 I/O I/O I/O
H12 NC I/O I/O L1 I/O I/O I/O
J1 NC NC VSV1L2 I/O I/O I/O
J2 I/O I/O I/O L3 NC I/O I/O
J3 VCCI VCCI VCCI L4 I/O I/O I/O
J4 I/O I/O I/O L5 I/O I/O I/O
J5 I/O I/O I/O L6 I/O I/O I/O
J6 I/O I/O I/O L7 I/O I/O I/O
J7 GND GND GND L8 I/O I/O I/O
J8 I/O I/O I/O L9 I/O I/O I/O
J9 GND GND GND L10 I/O I/O I/O
J10 I/O I/O I/O L11 NC I/O I/O
J11 I/O I/O I/O L12 VCCI VCCI VCCI
J12 NC I/O I/O M1 GND GND GND
K1 NC I/O I/O M2 I/O I/O I/O
K2 I/O I/O I/O M3 I/O I/O I/O
K3 I/O I/O I/O M4 I/O I/O I/O
K4 I/O I/O I/O M5 I/O I/O I/O
K5 I/O I/O I/O M6 I/O I/O I/O
K6 PRB, I/O PRB, I/O PRB, I/O M7 VCCA VCCA VCCA
K7 HCLK HCLK HCLK M8 I/O I/O I/O
K8 I/O I/O I/O M9 I/O I/O I/O
K9 I/O I/O I/O M10 I/O I/O I/O
K10 I/O I/O I/O M11 I/O I/O I/O
K11 TDO, I/O TDO, I/O TDO, I/O M12 I/O I/O I/O
1. Please read the VSV and LP pin descriptions for restrictions on their use.
128-CSP
Pin Number eX64
Function eX128
Function eX256
Function Pin Number eX64
Function eX128
Function eX256
Function
v3.0 29
eX Family FPGAs
Package Pin Assignments (Continued)
180-Pin CSP (Top View)
12345 67 8910 11 12
13
14
A
B
C
D
E
F
G
H
J
K
L
M
N
P
A1 Ball Pad Corner
eX Family FPGAs
30 v3.0
180-Pin CSP
Pin Number eX256
Func tion Pin Number eX256
Func tion P in Number eX256
Func tion Pin Number eX256
Function
A1 I/O D6 I/O H5 GND M4 I/O
A2 I/O D7 CLKA H10 GND M5 I/O
A3 GND D8 I/O H11 I/O M6 I/O
A4 NC D9 I/O H12 I/O M7 I/O
A5 NC D10 I/O H13 I/O M8 I/O
A6 NC D11 I/O H14 I/O M9 I/O
A7 NC D12 I/O J1 I/O M10 I/O
A8 NC D13 I/O J2 GND M11 I/O
A9 NC D14 I/O J3 I/O M12 I/O
A10 NC E1 I/O J4 VCCI M13 VCCI
A11 NC E2 I/O J5 GND M14 I/O
A12 I/O E3 I/O J10 I/O N1 I/O
A13 I/O E4 I/O J11 VCCI N2 GND
A14 I/O E5 I/O J12 VSV1N3 I/O
B1 I/O E6 I/O J13 I/O N4 I/O
B2 I/O E7 GND J14 I/O N5 I/O
B3 TCK, I/O E 8 I/O K1 I/O N6 I/O
B4 VCCI E9 GND K2 VSV1N7 I/O
B5 I/O E10 I/O K3 I/O N8 VCCA
B6 I/O E11 I/O K4 VCCI N9 I/O
B7 VCCA E12 I/O K5 I/O N10 I/O
B8 I/O E13 VCCI K6 I/O N11 I/O
B9 I/O E14 I/O K7 I/O N12 I/O
B10 VCCI F1 I/O K8 GND N13 I/O
B11 I/O F2 I/O K9 I/O N14 I/O
B12 I/O F3 VCCI K10 GND P1 I/O
B13 I/O F4 I/O K11 I/O P2 I/O
B14 I/O F5 GND K12 I/O P3 I/O
C1 I/O F10 GND K13 I/O P4 NC
C2 TMS F11 I/O K14 I/O P5 NC
C3 I/O F12 GND/LP1L1 I/O P6 NC
C4 I/O F13 VCCA L2 I/O P7 NC
C5 I/O F14 I/O L3 I/O P8 NC
C6 I/O G1 VCCA L4 I/O P9 NC
C7 PRA, I/O G2 I/O L5 I/O P10 NC
C8 CLKB G3 I/O L6 I/O P11 NC
C9 I/O G4 I/O L7 PRB, I/O P12 GND
C10 I/O G5 I/O L8 HCLK P13 I/O
C11 I/O G10 GND L9 I/O P14 I/O
C12 GND G11 I/O L10 I/O
C13 I/O G12 I/O L11 I/O
C14 I/O G13 I/O L12 TDO, I/O
D1 I/O G14 VCCA L13 I/O
D2 I/O H1 I/O L14 I/O
D3 TDI, I/O H2 I/O M1 I/O
D4 I/O H3 TRST, I/O M2 I/O
D5 I/O H4 I/O M3 I/O
1. Please read the VSV and LP pin descriptions for restrictions on their use.
v3.0 31
eX Family FPGAs
List of Changes
The following table lists critical changes that were made in the current version of the document.
Previous version Changes in current version (v3.0) Page
v2.0.1
The “Recommended Operating Conditions” on page 8 has been changed. page 8
The “3.3V Electrical Specifications” on page 9 has been updated. page 9
The “5.0V Electrical Specifications” on page 9 has been updated. page 9
The “Tota l Dynamic Power (mW)” on page 11 is new. page 11
The System Power at 5%, 10%, and 15% Duty Cycle is new. page 11
The “eX Timing Model*” on page 13 has been updated. page 13
Advanced v0.4
The I/O Features table, Table 1 on page 5, was updated. page 5
The table, “2.5V LP/Sleep Mode Specifications Typical Condi tions, VCCA, VCCI =
2.5V, TJ = 25° C” on page 6, was updated. page 6
“Typical eX Standby Current at 25°C” on page 8 is a new table. page 8
The table in the section, “Package Thermal Characteristics” on page 12 has been
updated for the 49-Pin CSP. page 11
The “eX Timing Model*” on page 13 has been updated. page 12
The timing numbers found in, “eX Family Timing Characteristics” on page 16 have
been updated. pages 15-18
The VSV pin has been added to the “Pin Description” on page 20. page 18
Please see the following pin tables for the VSV pin and an important footnote
including the pin: “64-Pin TQFP” on page 22,“100-TQFP” on page 24,“49-Pin C SP”
on page 25,“128-CSP” on page 27, and “180-Pin CSP” on page 30.
pages- 21, 23, 24,
26, 27, 29
The figure, “100-Pin TQFP (Top View) ” on page 23 has been updated. page 22
Advanced v0.3 In the Product Pr ofile table, the Maximum User I/Os for eX64 was changed to 84. page 1
In the Product Profile table, the Maximum User I/Os for eX128 was changed to 100. page 1
Advanced v0.2
The Mechanical Drawings section has been removed from the data sheet. The
mechanical drawings are now contained in a separate document, “Package
Characteristics and Mechanical Drawings,” availabl e on the Actel web site.
A new section describing Clock Resources has been added. page 5
A new table describing I/O Features has been added. page 6
The Pin Description section has been updated and clarified. page 21
The original Electrical Specifications table was separated into two tables (2.5V and
3.3/5.0V). In both tables, several different currents are specified for VOH and VOL.Page 8 and 9
A new ta ble li sting 2.5V low pow er specificati o ns and asso ciated p ower gr aphs w ere
added. page 9
Pin functions for eX256 TQ100 have been added to the 100-TQFP table. page 25
A CS49 pin drawing and pin assignment table including eX64 and eX128 pin
functions have been added. page 26
A CS128 pin drawing and pin assignment table including eX64, eX128, and eX256
pin functions have been added. pages 26-27
A CS180 pin drawing and pin assignment table for eX256 pin functions have been
added. pages 27, 31
Advanced v.1 The following table note was added to the eX Timing Characteristics table for
clarification: Clock skew impr oves as the clock network becomes more heavily
loaded. pages 14-15
eX Family FPGAs
32 v3.0
Data Sheet Categories
In order to provide the latest information to designers, some data sheets are published before data has been fully
characterized. Product Briefs are modified versions of data sheets. Data sheets are marked as “Advanced,” “Preliminary,” and
“Web-only.” The definition of these categories are as follows:
Product Brief
The product brief is a modified version of an Advanced data sheet containing general product information. This brief
summarizes specific device and family information for non-release products.
Advanced
The data sheet contains initial estimated information based on simulation, other products, devices, or speed grades. This
information can be used as estimates, but not for production.
Preliminary
The data sheet contains information based on simulation and/or initial characterization. The information is believed to be
correct, but changes are possible.
Unmarked (production)
The data sheet contains information that is considered to be final.
Web-only Versions
Web-only versions have three numbers in the version number (example: v2.0.1). A web-only version means Actel is posting
the data sheet so customers have the latest information, but we are not printing the version because some information is
going to change shortly after posting.
v3.0 33
eX Family FPGAs
eX Family FPGAs
34 v3.0
v3.0 35
eX Family FPGAs
Actel and the Actel logo ar e regi stered tr ademarks of Actel Corporation.
All other trademarks are the property of their owners.
http://www.actel.com
Actel Europe Ltd.
Maxfli Court, Riverside Way
Camberley, Surrey GU15 3YL
United Kingdom
Tel: +44 (0)1276 40145 0
Fax: +44 (0)1276 401490
Actel Corporation
955 East Arques A venue
Sunnyvale , California 94086
USA
Tel: (408) 739-1010
Fax: (408) 739-1540
Actel Asia-Paci fic
EXOS Ebisu Bldg. 4F
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Tokyo 150 Japan
Tel: +81 03-3445-7671
Fax: +81 03-3445-7668
5172154-4/12.01
