1www.pericom.com PS7007L 07/23/10
PI49FCT3805 Block Diagram PI49FCT3806 Block Diagram
Description
Pericom Semiconductor’s PI49FCT3805 is a 3.3V non-inverting
clock driver and the PI49FCT3806 is a 3.3V inverting clock
driver designed with two independent groups of buers. ese
buers have 3-state Output Enable inputs (active LOW) with a
1-in, 5-out conguration per group. Each clock driver consist of
two banks of drivers, driving ve outputs each from a standard
TTL compatible CMOS input.
Features
Î3.3V version of PI49FCT805/806
ÎExtremely low output skew: 0.5ns
ÎMonitor ouput pin
ÎClock busing wih 3-state control
ÎTTL input and CMOS output compatible
ÎIndustrial operation at –40°C to 85°C
ÎExtremely low static power (1mW, typ.)
ÎHysteresis on all inputs
ÎPackaging (Pb-free & Green available):
à20-pin 150-mil wide QSOP (Q)
à20-pin 209-mil wide SSOP (H)
OA0-4
5
OEA
INA
OB0-4
5
OEB
INB
MON
OA0-4
5
OEA
INA
OB0-4
5
OEB
INB
MON
PI49FCT3805/PI49FCT3806
3.3V Fast CMOS Buer/Clock Driver
11-0004
2
PI49FCT3805/PI49FCT3806
3.3V Fast CMOS Buer/Clock Driver
www.pericom.com PS7007L 07/23/10
Capacitance (TA = 25°C, f = 1 MHz)
Parameters() Description Test Conditions Typ Max. Units
CIN Input Capacitance VIN = 0V 3.0 6.0 pF
COUT Output Capacitance VOUT = 0V 6.0 8.0
Note:
1. is parameter is determined by device characterization but is not production tested.
Pin Description
Pin Name Description
OEA, OEB3-State Output Enable Inputs (Active LOW)
INA, INBClock Inputs
OAN, OBNClock Outputs
MON Monitor Output
GND Ground
VCC Power
VCCA
OA0
OA1
OA2
GNDA
OA3
OA4
GNDQ
OEA
INA
VCCB
OB0
OB1
OB2
GNDB
OB3
OB4
MON
OEB
INB
PI49FCT3805 Pin Conguration PI49FCT3805 Truth Table(1)
Inputs Outputs
OEA, OEBINA, INB OAN, OBNMON
L L L L
L H H H
H L Z L
H H Z H
Note:
1. H = High Voltage Level, L = Low Voltage Level
Z = High Impedance
PI49FCT3806 Truth Table(1)
Inputs Outputs
OEA, OEBINA, INBOAN, OBNMON
L L H H
L H L L
H L Z H
H H Z L
Note:
1. H = High Voltage Level, L = Low Voltage Level, Z = High Impedance
VCCA
OA0
OA1
OA2
GNDA
OA3
OA4
GNDQ
OEA
INA
VCCB
OB0
OB1
OB2
GNDB
OB3
OB4
MON
OEB
INB
PI49FCT3806 Pin Conguration
VCC
A 1
20
B9GND
2 19
B8B0
3 18
GNDVCC
4 17
B7B1
5 16
VCC
GND
6 15
B6B2
7 14
GNDVCC
8 13
B5B3
9 12
B4GND
10 11
VCC
A 1
20
B9GND
2 19
B8B0
3 18
GNDVCC
4 17
B7B1
5 16
VCC
GND
6 15
B6B2
7 14
GNDVCC
8 13
B5B3
9 12
B4GND
10 11
11-0004
3
PI49FCT3805/PI49FCT3806
3.3V Fast CMOS Buer/Clock Driver
www.pericom.com PS7007L 07/23/10
Storage Temperature ................................................................–65°C to +150°C
Ambient Temperature with Power Applied .......................... –40°C to +85°C
Supply Voltage to Ground Potential (Inputs & Vcc Only) ....–0.5V to +7.0V
Supply Voltage to Ground Potential (Outputs & I/O Only) .–0.5V to +7.0V
DC Input Voltage ........................................................................–0.5V to +7.0V
DC Output Current ................................................................................ 120 mA
Power Dissipation ........................................................................................0.5W
Note:
Stresses greater than those listed under MAXIMUM RAT-
INGS may cause permanent damage to the device. is 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 specication is not implied.
Exposure to absolute maximum rating conditions for
extended periods may aect reliability.
Electrical Specifications
Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.)
DC Electrical Characteristics (TA = –40°C to +85°C, VCC = 3.3V ±0.3V)
Symbol Parameter Test Condition(1) Min. Typ. Max. Units
VOH Output High Voltage
VCC = 3.0V, VIN = VIL or VIH
VCC = Min.,
VIN = VIH or VIL
IOH = -0.1mA
IOH = -8mA
VCC -0.2
2.4 (3)
-
3.0
V
VOL Output Low Voltage
VCC = 3.0V, VIN = VIL or VIH
VCC = Min.,
VIN = VIH or VIL
IOL = 0.1mA
IOL = 16mA
IOL = 24mA
-
0.2
0.3
0.2
0.4
0.5
VIH Input High Voltage Guaranteed Logic
HIGH level Input Pins 2.0 5.5
VIL Input Low Voltage Guaranteed Logic
LOW level Input Pins -0.5 0.8
IIH Input High Current VCC = Max VIN = VCC
(Input Pins) -1 1
µA
IIL Input Low Current VCC = Max
VIN = GND
(Input & I/O
Pins)
-1 1
IOZH High Impedance Output
Current
VCC = Max.,
All outputs Disabled
VOUT = VCC
VOUT = GND -1 1
IOZL High Impedance Output
Current
VCC = Max.,
All outputs Disabled
VOUT = VCC
VOUT = GND -1 1
VIK Clamp Diode Voltage VCC = Min., IIN = -18mA -0.7 -1.2 V
IODH Output HIGH Current VOUT = 3.3V, VIN =VIL or VIH,
VOUT = 1.5V(4) -35 -86 -110
mA
IODL Output LOW Current VOUT = 3.3V, VIN = VIL or VIH,
VOUT = 1.5V(4) 50 168 200
IOS Short Circuit
(5)
Current VCC = Max., VOUT = GND
(5)
-60 -135 -240
VHInput Hysteresis 150 mV
1. For Max. or Min. conditions, use appropriate value specied under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3V, +25°C ambient and maximum loading.
3. VOH = VCC – 0.6V at rated current.
4. is parameter is determined by device characterization but is not production tested.
5. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
11-0004
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PI49FCT3805/PI49FCT3806
3.3V Fast CMOS Buer/Clock Driver
www.pericom.com PS7007L 07/23/10
Power Supply Characteristics (TA = –40°C to +85°C, VCC = 3.3V ±0.3V)
Parameters Description Test Conditions(1) Min. Typ(2) Max. Units
ICC
Quiescent Power
Supply Current VCC = Max. VIN = GND or
VCC — 30
µA
ICC
Supply Current per
Inputs @ TTL HIGH VCC = Max. VIN = VCC –
0.6V(3) — 11 300
ICCD
Supply Current per
Input per MHz(4)
VCC = Max.,
Outputs Open
OE or OE = GND
Per Output Toggling
Duty Cycle
VIN = VCC
VIN = GND
— 0.1 0.16 mA/
MH
IC
Total Power Supply
Current(6)
VCC = Max.,
Outputs Open
FO = 10 MHz
Duty Cycle
OEA or OEB = GND
Mon. Outputs Toggling
VIN = VCC
VIN = GND — 3.3 9.0(5)
mA
VIN = VCC –
0.6V
VIN = GND
— 3.3 10.0(5)
VCC = Max.,
Outputs Open
fO = . MH
Duty Cycle
OE or OE = GND
Eleven Outputs Toggling
VIN = VCC
VIN = GND — 1.8 6.0(5)
VIN = VCC –
0.6V
VIN = GND
— 1.8 7.0(5)
1. For Max. or Min. conditions, use appropriate value specied under Electrical Characteristics for the applicable device.
2. Typical values are at VCC = 3.3V, +25°C ambient.
3. Per TTL driven input (VIN = VCC – .V); all other inputs at VCC or GND.
4. is parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the I formula. ese limits are guaranteed but not tested.
. IC = IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ICC DN + ICCD (fONO)
ICC = Quiescent Current
ICC = Power Supply Current for a TTL High Input (VIN = VCC – .V)
DH = Duty Cycle for TTL Inputs High
NT = Number of TTL Inputs at DH
ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
fO = Output Frequency
NO = Number of Outputs at fO
All currents are in milliamps and all frequencies are in megahertz.
11-0004
5
PI49FCT3805/PI49FCT3806
3.3V Fast CMOS Buer/Clock Driver
www.pericom.com PS7007L 07/23/10
Switching Characteristics (TA = –40°C to +85°C, VCC = 3.3V ±0.3V)
Parameter Description
Test
Condi-
tions(1)
3805
3806
3805A
3806A
3805B
3806B
3805C
3806C
Units
Com. Com. Com. Com.
Min. Max. Min. Max. Min. Max. Min. Max.
tPLH
tPLH
Propagation Delay
INA to OAN,
INB to OBN
CL = 50pF
RL = 500Ω
1.5 6.5 1.5 5.8 1.5 5.0 1.5 4.5
ns
tPZH
tPZL
Output Enable Time
OEA to OAN, OEB to OBN1.5 8.0 1.5 8.0 1.5 6.5 1.5 6.2
tPHL
tPLZ
Output Disable Time
OEA to OAN, OEB to OBN
1.5 7.0 1.5 7.0 1.5 6.0 1.5 5.0
tSK(o)(3) Skew between two outputs of
same package (same transition) 0.7 0.7 0.5 0.5
tSK(P)(3)
Skew between opposite transi-
tions (tPHL - tPLH) of the same
output
1.0 0.7 0.5 0.5
tSK(t)(3)
Skew between two outputs of
dierent package at same tem-
perature (Same transition)
1.5 1.2 1.0 0.8
Note:
1. See test circuit and waveforms
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. Skew measured at worst cast temperature (max. temp).
Tests Circuits for All Outputs(1)
except for FIN >100 MHz
Switch Position
Test Switch
Disable LOW
Enable LOW
6V
Disable HIGH
Enable HIGH
GND
All Other Inputs Open
Denitions:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.
Pulse
Generator D.U.T.
V
IN
R
T
V
OUT
C
L
500Ω
500Ω
50pF
V
CC
6.0V
11-0004
6
PI49FCT3805/PI49FCT3806
3.3V Fast CMOS Buer/Clock Driver
www.pericom.com PS7007L 07/23/10
Switching Waveforms
Output Skew – tSK(O)
Pulse Skew – tSK(P)
Package Skew – tSK(t)
Propagation Delay
Enable and Disable Times
Input
t
PLH
3V
1.5V
0V
Output
V
OH
1.5V
V
OL
t
PHL
Input
t
PLHx
3V
1.5V
0V
Ox
V
OH
1.5V
V
OL
t
PHLx
t
SK(o)
Oy
V
OH
1.5V
V
OL
t
SK(o)
t
PLHY
t
PHLy
t
SK(o)
= | t
PLHy
– t
PLHx
| or | t
PHLy
– t
PHLx
|
tPZL
OE 1.5V
0V
3V
1.5V
3.0V
0V
1.5V
tPLZ
VOL
3.0V
0V
tPZH tPHZ
0.3V
0.3V
Output
Normally
Low
Output
Normally
High
Switch
Closed
Switch
Open
VOH
Enable Disable
Input
tPLH
3V
1.5V
0V
Output
VOH
1.5V
VOL
tPHL
t
S
K
(p)
=
|
tPHL – tPLH
|
Input
t
PLH1
3V
1.5V
0V
Package 1
Output
V
OH
1.5V
V
OL
t
PHL1
t
SK(t)
Package 2
Output
V
OH
1.5V
V
OL
t
SK(t)
t
PLH2
t
PHL2
t
SK
(
t
)
=
|
t
PLH2
– t
PLH1
|
or
|
t
PHL2
– t
PHL1
|
11-0004
7
PI49FCT3805/PI49FCT3806
3.3V Fast CMOS Buer/Clock Driver
www.pericom.com PS7007L 07/23/10
1
: 20-Pin, 209-Mil Wide, SSOPNOITPIRCSED
:EDOC EGAKCAP
1240-DP :# LORTNOC TNEMUCOD E:NOISIVER
80/01/40 :ETAD
H20
08-0140
Note:
• For latest package info, please check: http://www.pericom.com/products/packaging/mechanicals.php
Packaging Mechanical: 20-pin SSOP (H20)
11-0004
8
PI49FCT3805/PI49FCT3806
3.3V Fast CMOS Buer/Clock Driver
www.pericom.com PS7007L 07/23/10
1
.337
.344
.053
.069
.004
.010
SEATING
PLANE
.025
BSC
.007
.010
.228
.244
.150
.157
1
20
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
0.635
8.56
8.74
1.35
1.75
5.79
6.19
0.101
0.254
.008
.012
0.203
0.305
3.81
3.99
0.178
0.254
.058
1.47
.015 x 45˚
0.38
REF
Detail A
Detail A
.008
0.20
MIN.
Guage Plane
.010
0.254
.041
1.04
REF
.016
.035
0.41
0.89
0˚-6˚
.008
.013
0.20
0.33
DESCRIPTION: 20-Pin, 150-Mil Wide, QSOP
PACKAGE CODE: Q
DOCUMENT CONTROL NO.
PD - 1202
REVISION: H
DATE: 10/22/07
Note:
1) Controlling dimensions in inches.
2) Ref: JEDEC MO-137B/AD
3) Dimensions do not include mold flash, protrusions or gate burrs
Pericom Semiconductor Corporation
3545 N. 1st Street, San Jose, CA 95134
1-800-435-2335 • www.pericom.com
Note:
• For latest package info, please check: http://www.pericom.com/products/packaging/mechanicals.php
Packaging Mechanical: 20-contact SSOP (H20)
11-0004
9
PI49FCT3805/PI49FCT3806
3.3V Fast CMOS Buer/Clock Driver
www.pericom.com PS7007L 07/23/10
PI49FCT3805 Ordering Information
Ordering Code Package Code Speed Grade Package Description
PI49FCT3805AHE H A Pb-free & Green, 20-pin 209-mil SSOP
PI49FCT3805BHE H B Pb-free & Green, 20-pin 209-mil SSOP
PI49FCT3805BQE Q B Pb-free & Green, 20-pin 150-mil QSOP
PI49FCT3805CHE H C Pb-free & Green, 20-pin 209-mil SSOP
PI49FCT3805CQE Q C Pb-free & Green, 20-pin 150-mil QSOP
PI49FCT3805QE Q Blank Pb-free & Green, 20-pin 150-mil QSOP
Notes:
• ermal characteristics can be found on the company web site at www.pericom.com/packaging/
• E = Pb-free and Green
• Adding an X sux = Tape/Reel
Pericom Semiconductor Corporation • 1-800-435-2336
PI49FCT3806 Ordering Information
Ordering Code Package Code Speed Grade Package Description
PI49FCT3806BQE Q B Pb-free & Green, 20-pin 150-mil QSOP
Notes:
• ermal characteristics can be found on the company web site at www.pericom.com/packaging/
• E = Pb-free and Green
• Adding an X sux = Tape/Reel
11-0004
