MARCH 2012
DSC-3624/10
1
©2012 Integrated Device Technology, Inc.
Features
◆◆
◆◆
◆256K x 16 advanced high-speed CMOS Static RAM
◆◆
◆◆
◆JEDEC Center Power / GND pinout for reduced noise.
◆◆
◆◆
◆Equal access and cycle times
– Commercial and Industrial: 10/12/15ns
◆◆
◆◆
◆One Chip Select plus one Output Enable pin
◆◆
◆◆
◆Bidirectional data inputs and outputs directly
LVTTL-compatible
◆◆
◆◆
◆Low power consumption via chip deselect
◆◆
◆◆
◆Upper and Lower Byte Enable Pins
◆◆
◆◆
◆Single 3.3V power supply
◆◆
◆◆
◆Available in 44-pin, 400 mil plastic SOJ package and a 44-
pin, 400 mil TSOP Type II package and a 48 ball grid array,
9mm x 9mm package.
Description
The IDT71V416 is a 4,194,304-bit high-speed Static RAM organized
as 256K x 16. It is fabricated using IDT’s high-perfomance, high-reliability
CMOS technology. This state-of-the-art technology, combined with inno-
vative circuit design techniques, provides a cost-effective solution for high-
speed memory needs.
The IDT71V416 has an output enable pin which operates as fast as
5ns, with address access times as fast as 10ns. All bidirectional inputs and
outputs of the IDT71V416 are LVTTL-compatible and operation is from a
single 3.3V supply. Fully static asynchronous circuitry is used, requiring
no clocks or refresh for operation.
The IDT71V416 is packaged in a 44-pin, 400 mil Plastic SOJ and a
44-pin, 400 mil TSOP Type II package and a 48 ball grid array, 9mm x
9mm package.
Functional Block Diagram
Output
Enable
Buffer
Address
Buffers
Chip
Select
Buffer
Write
Enable
Buffer
Byte
Enable
Buffers
OE
A0 - A17 Row / Column
Decoders
CS
WE
BHE
BLE
4,194,304-bit
Memory
Array
Sense
Amps
and
Write
Drivers
16
High
Byte
Output
Buffer
High
Byte
Write
Buffer
Low
Byte
Write
Buffer
Low
Byte
Output
Buffer
8
8
8
8
8
8
8
8
I/O 15
I/O 8
I/O 7
I/O 0
3624 drw 01
3.3V CMOS Static RAM
4 Meg (256K x 16-Bit)
IDT71V416S
IDT71V416L
6.422
IDT71V416S, IDT71V416L, 3.3V CMOS Static RAM
4 Meg (256K x 16-Bit) Commercial and Industrial Temperature Ranges
*Pin 28 can either be a NC or connected to Vss
Top View
Pin Configurations - SOJ/TSOP
Pin Descriptions SOJ Capacitance
(TA = +25°C, f = 1.0MHz)
NOTE:
1. This parameter is guaranteed by device characterization, but not production
tested.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
I/O 7
A9
A8
A7
A6
A5
WE
I/O 6
I/O 5
I/O 4
V
SS
V
DD
I/O 3
I/O 2
I/O 1
I/O 0
CS
A4
A3
A2
A1
A0 44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A16
A15
OE
BHE
BLE
I/O 15
I/O 14
I/O 13
I/O 12
V
SS
V
DD
I/O 11
I/O 10
I/O 9
I/O 8
A14
A13
A12
A11
A10
A17
NC*
SO44-1
SO44-2
3624 drw 02
A
0
- A
17
Address Inp ut s I nput
CS Chip Select I nput
WE Write E nable I nput
OE Output Enable Input
BHE High By t e Enable I nput
BLE Low Byte Enable Input
I/O
0
- I/O
15
Data Input/Output I/O
V
DD
3.3V Pow er Pw r
V
SS
Ground Gnd
3624 tbl 01
Symbol Parameter
(1)
Conditions Max. Unit
C
IN
Input Capacitance V
IN
= 3dV 7 pF
C
I/O
I/O Capacitance V
OUT
= 3dV 8 pF
3624 tbl 02
123456
ABLE OE A
0
A
1
A
2
NC
BI/O
0
BHE A
3
A
4
CS I/O
8
CI/O
1
I/O
2
A
5
A
6
I/O
10
I/O
9
DV
SS
I/O
3
A
17
A
7
I/O
11
V
DD
EV
DD
I/O
4
NC A
16
I/O
12
V
SS
FI/O
6
I/O
5
A
14
A
15
I/O
13
I/O
14
GI/O
7
NC A
12
A
13
WE I/O
15
HNC A
8
A
9
A
10
A
11
NC
3624 tbl 1
1
Pin Configurations - 48 BGA
48 BGA Capacitance
(TA = +25°C, f = 1.0MHz)
Symbol Parameter
(1)
Conditions Max. Unit
C
IN
Inp ut Cap ac i tanc e V
IN
= 3dV 6 pF
C
I/O
I/ O Capacitance V
OUT
= 3dV 7 pF
3624 tb l 02b
6.42
IDT71V416S, IDT71V416L, 3.3V CMOS Static RAM
4 Meg (256K x 16-Bit) Commercial and Industrial Temperature Ranges
3
Absolute Maximum Ratings(1) Recommended Operating
Temperature and Supply
Voltage
Recommended DC Operating
Conditions
NOTE:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may
cause permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated
in the operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect reliability.
NOTES:
1. VIH (max.) = VDD+2V for pulse width less than 5ns, once per cycle.
2. VIL (min.) = –2V for pulse width less than 5ns, once per cycle.
Truth Table(1)
NOTE:
1 . H = VIH, L = VIL, X = Don't care.
Symbol Rating Value Unit
V
DD
Supply Voltage Relativ e to V
SS
-0.5 to +4.6 V
V
IN,
V
OUT
Termin al Volt ag e R elat iv e t o
V
SS
-0.5 t o V
DD
+0.5 V
T
BIAS
Tem perature Under Bias -55 to +125
o
C
T
STG
Storage Tem perature -55 t o +125
o
C
P
T
Power Dissipation 1 W
I
OUT
DC Output Current 50 m A
3624 tbl 04
Grade Temperature V
SS
V
DD
Commercial 0
O
C to +70
O
C0VSee Below
Industrial –40
O
C to +85
O
C0VSee Below
3624 tb l 05
Symbol Parameter Min. Typ. Max. Unit
V
DD
Supply Voltage 3.0 3.3 3.6 V
V
SS
Ground 0 0 0 V
V
IH
Input High Voltage 2.0 ____ V
DD
+0.3
(1)
V
V
IL
Input Low Voltage -0.3
(2)
____ 0.8 V
3624 tbl 06
CS OE WE BLE BHE I/O
0-
I/O
7
I/O
8-
I/O
15
Function
H X X X X High-Z High-Z Deselected - Standby
LLHLHDATA
OUT
High-Z Low By t e Read
L L H H L High-Z DATA
OUT
High By te Read
LLHLLDATA
OUT
DATA
OUT
Word Read
LXLLL DATA
IN
DATA
IN
Word Writ e
LXLLH DATA
IN
High-Z Low Byte Write
L X L H L High-Z DATA
IN
High By te Write
L H H X X High-Z High-Z O utput s Disabled
L X X H H High-Z High-Z O utput s D isab led
3624 tbl 03
6.424
IDT71V416S, IDT71V416L, 3.3V CMOS Static RAM
4 Meg (256K x 16-Bit) Commercial and Industrial Temperature Ranges
AC Test Conditions
AC T est Loads
Figure 3. Output Capacitive Derating
Figure 1. AC Test Load
Figure 2. AC Test Load
(for tCLZ, tOLZ, tCHZ, tOHZ, tOW, and tWHZ)
*Including jig and scope capacitance.
Input Pulse Levels
Input Rise/Fall Tim es
Input Tim ing Reference Lev els
Output Reference Levels
AC Test Load
GND to 3.0V
1.5ns
1.5V
1.5V
Figures 1,2 and 3
3624 tbl 09
+1.5V
50Ω
I/O Z
0
=50Ω
3624 drw 03
30pF
3624 drw 04
320Ω
350Ω5pF*
DATA
OUT
3.3V
IDT71V416S/71V416L
1
2
3
4
5
6
7
20 40 60 80 100 120 140 160 180 200
∆t
AA,
t
ACS
(Typical, ns)
CAPACITANCE (pF)
8
3624 drw 05
•
•
•
•
•
•
•
DC Electrical Characteristics
(VDD = Min. to Max., Commercial and Industrial Temperature Ranges)
DC Electrical Characteristics(1, 2, 3)
(VDD = Min. to Max., VLC = 0.2V, VHC = VDD – 0.2V)
NOTES:
1. All values are maximum guaranteed values.
2. All inputs switch between 0.2V (Low) and VDD -0.2V (High).
3. Power specifications are preliminary.
4. fMAX = 1/tRC (all address inputs are cycling at fMAX); f = 0 means no address input lines are changing.
Symbol Parameter
71V416S/L10 71V416S/L12 71V416S/L15
UnitCom'l. Ind. Com'l. Ind. Com'l. Ind.
I
CC
Dynamic Operating Current
CS < V
LC
, Outputs Open, V
DD
= Max., f = f
MAX
(4)
S 200 200 180 180 170 170 mA
L 180 — 170 170 160 160
I
SB
Dynamic S tand by Po we r Sup ply Current
CS > V
HC
, Outputs Open, V
DD
= Max., f = f
MAX
(4)
S707060605050mA
L 50 — 45 45 40 40
I
SB1
Full Standb y Po we r Sup p ly Curre nt (static )
CS > V
HC
, Outputs Open, V
DD
= Max., f = 0
(4)
S202020202020mA
L 10 — 10 10 10 10
3624 tb l 08
Symbol Parameter Test Conditions
IDT71V416
UnitMin. Max.
|I
LI
| I npu t Lea kage Current V
CC
= Max., V
IN
=
V
SS
to V
DD
___
5µA
|I
LO
| Output Leakage Current V
DD
= Max., CS = V
IH
, V
OUT
= V
SS
to V
DD
___
5µA
V
OL
Output Low Voltage I
OL
= 8m A, V
DD
= Min.
___
0.4 V
V
OH
Output High Voltage I
OH
= -4mA, V
DD
= Min. 2.4
___
V
3624 tbl 07
6.42
IDT71V416S, IDT71V416L, 3.3V CMOS Static RAM
4 Meg (256K x 16-Bit) Commercial and Industrial Temperature Ranges
5
71V416S/L10 71V416S/L12 71V416S/L15
Symbol Parameter Min.Max.Min.Max.Min.Max.Unit
READ CYCLE
t
RC
Re ad Cy c le Ti me 10
____
12
____
15
____
ns
t
AA
Address Access Time
____
10
____
12
____
15 ns
t
ACS
Chip Select Access Time
____
10
____
12
____
15 ns
t
CLZ
(1)
Chip Sele ct Low to Output in Lo w-Z 4
____
4
____
4
____
ns
t
CHZ
(1)
Chip Sele ct Hig h to Outp ut in Hig h-Z
____
5
____
6
____
7ns
t
OE
Outp ut Enab le Lo w to Outp ut Valid
____
5
____
6
____
7ns
t
OLZ
(1)
Outp ut Enab le Low to Output in Lo w-Z 0
____
0
____
0
____
ns
t
OHZ
(1)
Outp ut Enab le Hig h to Output in Hig h-Z
____
5
____
6
____
7ns
t
OH
Output Hold from Address Change 4
____
4
____
4
____
ns
t
BE
B y te E na b l e Low to O utp u t Val id
____
5
____
6
____
7ns
t
BLZ
(1)
By te E nab l e Lo w to Outp ut in Lo w-Z 0
____
0
____
0
____
ns
t
BHZ
(1)
By te Enabl e Hi g h to Outp u t i n Hig h -Z
____
5
____
6
____
7ns
WRI TE CYCLE
t
WC
Write Cycle Time 10
____
12
____
15
____
ns
t
AW
Address Valid to End of Write 8
____
8
____
10
____
ns
t
CW
Chip Sele ct Low to E nd o f Write 8
____
8
____
10
____
ns
t
BW
By te E nab l e Lo w to End o f Write 8
____
8
____
10
____
ns
t
AS
Address Set-up Time 0
____
0
____
0
____
ns
t
WR
Address Hold from End of Write 0
____
0
____
0
____
ns
t
WP
Write Pulse Width 8
____
8
____
10
____
ns
t
DW
Data Valid to End of Write 5
____
6
____
7
____
ns
t
DH
Data Ho l d Ti me 0
____
0
____
0
____
ns
t
OW
(1)
Write Enable High to Output in Low-Z 3
____
3
____
3
____
ns
t
WHZ
(1)
Write E nable Lo w to Outp ut in Hig h-Z
____
6
____
7
____
7ns
3624 tb l 10
Timing W av ef orm of R ead Cyc le No . 1(1,2,3)
AC Electrical Characteristics
(VDD = Min. to Max., Commercial and Industrial Temperature Ranges)
NOTE:
1. This parameter is guaranteed with the AC Load (Figure 2) by device characterization, but is not production tested.
DATA
OUT
ADDRESS
3624 drw 06
t
RC
t
AA
t
OH
DATA
OUT
VALID
PREVIOUS DATA
OUT
VALID
t
OH
NOTES:
1. WE is HIGH for Read Cycle.
2. Device is continuously selected, CS is LOW.
3. OE, BHE, and BLE are LOW.
6.426
IDT71V416S, IDT71V416L, 3.3V CMOS Static RAM
4 Meg (256K x 16-Bit) Commercial and Industrial Temperature Ranges
ADDRESS
OE
CS
DATA
OUT
3624 drw 07
(3)
DATA VALID
t
AA
t
RC
t
OE
t
OLZ
BHE,BLE
(3)
t
ACS
(3)
t
BLZ
t
CLZ
(2)
t
BE
(2)
t
OH
t
OHZ (3)
t
CHZ (3)
t
BHZ (3)
OUT
Timing Wa vef orm of R ead Cyc le No. 2(1)
NOTES:
1. A write occurs during the overlap of a LOW CS, LOW BHE or BLE, and a LOW WE.
2. OE is continuously HIGH. If during a WE controlled write cycle OE is LOW, tWP must be greater than or equal to tWHZ + tDW to allow the I/O drivers to turn off and data
to be placed on the bus for the required tDW. If OE is HIGH during a WE controlled write cycle, this requirement does not apply and the minimum write pulse is as
short as the specified tWP.
3. During this period, I/O pins are in the output state, and input signals must not be applied.
4. If the CS LOW or BHE and BLE LOW transition occurs simultaneously with or after the WE LOW transition, the outputs remain in a high-impedance state.
5. Transition is measured ±200mV from steady state.
Timing W av ef orm of Write Cy c le No. 1 (WE Controlled Timing)(1,2,4)
NOTES:
1. WE is HIGH for Read Cycle.
2. Address must be valid prior to or coincident with the later of CS, BHE, or BLE transition LOW; otherwise tAA is the limiting parameter.
3. Transition is measured ±200mV from steady state.
ADDRESS
CS
DATA
IN
3624 drw
0
(5)
(5)
(5)
DATA
IN
VALID
t
WC
t
AS
t
WHZ
(2)
t
CW
t
CHZ
t
OW
t
WR
WE
t
AW
DATA
OUT
t
DW
t
DH
PREVIOUS DATA VALID DATA VALID
BHE
,
BLE
t
BW
t
WP
(5)
t
BHZ
(3)
6.42
IDT71V416S, IDT71V416L, 3.3V CMOS Static RAM
4 Meg (256K x 16-Bit) Commercial and Industrial Temperature Ranges
7
Timing Wavef orm of Write Cyc le No. 2 (CS Controlled Timing)(1,3)
NOTES:
1. A write occurs during the overlap of a LOW CS, LOW BHE or BLE, and a LOW WE.
2. During this period, I/O pins are in the output state, and input signals must not be applied.
3. If the CS LOW or BHE and BLE LOW transition occurs simultaneously with or after the WE LOW transition, the outputs remain in a high-impedance state.
Timing Waveform of Write Cyc le No . 3
(BHE, BLE Controlled Timing)(1,3)
ADDRESS
CS
DATA
IN
3624 drw 09
DATA
IN
VALID
t
WC
t
AS (2)
t
CW
t
WR
WE
t
AW
DATA
OUT
t
DW
t
DH
BHE, BLE
t
BW
t
WP
ADDRESS
CS
DATA
IN
3624 drw 10
DATA
IN
VALID
t
WC
t
AS
(2)
t
CW
t
WR
WE
t
AW
DATA
OUT
t
DW
t
DH
BHE, BLE
t
BW
t
WP
6.428
IDT71V416S, IDT71V416L, 3.3V CMOS Static RAM
4 Meg (256K x 16-Bit) Commercial and Industrial Temperature Ranges
Ordering Information
X
Power
XX
Speed
XXX
Package
X
Process/
Temperature
Range
Blank
I
Commercial (0°C to +70°C)
Industrial (-40°C to +85°C)
Y
PH
BE
44-pin, 400-mil SOJ (SO44-1)
44-pin TSOP Type II (SO44-2)
48 Ball Grid Array
10*
12
15
Speed in nanoseconds
S
L
Standard Power
Low Power
GGreen
Blank First generation or current
stepping being shipped
71V416
Device
Ty p e
3624 drw 11a
X
X
Die
Revistion
*Commercial only for 10 ns speed in BE package.
X
Blank
8
Tube or Tray
Tape and Reel
6.42
IDT71V416S, IDT71V416L, 3.3V CMOS Static RAM
4 Meg (256K x 16-Bit) Commercial and Industrial Temperature Ranges
9
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
Datasheet Document History
08/5/99 Updated to new format
Pg 6 Revised footnote for tCW on Write Cycle No. 1 diagram
08/31/99 Pg. 1–9 Added Industrial temperature range offering
Pg. 9 Added Datasheet Document History
03/24/00 Pg. 6 Changed note to Write cycle No. 1 according to footnotes
08/10/00 Add 48 ball grid array package offering
Pg. 1 Correct TTL to LVTTL
09/11/ 02 Pg. 2 Updated TBD information for the 48 BGA Capacitance table
11/26/02 Pg. 8 Added "Die Revision" to ordering information
07/31/03 Pg. 8 Updated note, L10 speed grade commercial temperature only and updated die stepping from YF to Y.
10/13/03 Pg. 8 Updated ordering information. Refer to 71V416YS and 71V416YL datasheet for latest generation die
step.
01/30/04 Pg. 8 Added "Restricted hazardous substance device" to ordering information.
03/28/12 Pg. 4 Removed footnote 5. Standard power 10ns (S10) speed grade only from the DC Elec Chars table.
Pg. 5 Removed footnote 2. Low power 10ns (L10) speed 0°C to +70°temperature range only from the AC
Elec Chars table.
Pg. 8 Removed "*Commercial only for low power 10ns (L10) speed grade" from ordering information.
Added "*Commercial only for 10 ns speed in BE package" to ordering information.
Added tape and reel and green to the ordering information.
Removed “IDT” from orderable part number.
CORPORATE HEADQUARTERS for SALES: for Tech Support:
6024 Silver Creek Valley Road 800-345-7015 or ipchelp@idt.com
San Jose, CA 95138 408-284-8200 800-345-7015
fax: 408-284-2775
www.idt.com
