1PS7010D 09/08/04
3.3V Fast CMOS Clock Driver
Description
Pericom Semiconductor’s PI49FCT3807 is a 3.3V 1-to-10 clock
driver. This low skew clock driver features one input and ten outputs
fanout. The large fanout from a single input line reduces loading
on input clock. TTL level ouputs reduce noise levels on the part.
Typical applications are clock and signal distribution.
Pin Conguration
Pin Description
Pin Name Description
A Input
B0 - B9Outputs
GND Ground
VCC Power
Block Diagram
PI49FCT3807
Features
• 3.3V version of PI49FCT807
• Ultra low skew: 0.35ns
• Low Input Capacitance
• Minimum duty cycle distortion
• 1:10 fanout
• High speed: 3.5ns propagation
• TTL input and CMOS output compatible
– VOH = 3.3V (typical)
– VOH = 0.3V (typical)
• Industrial operation at –40°C to 85°C
• Packaging (Pb-free & Green available):
– 20-pin 300-mil wide SOIC (S)
– 20-pin 150-mil wide QSOP (Q)
– 20-pin 209mil wide SSOP (H)
1
2
3
VCC 4
B1 5
B0
6
B2 7
VCC 8
GND
9
GND 10
VCC
B8
GND
VCC
B6
GND
B5
20
B4
19
18
17
16
15
14
13
12
11
A
GND
B3
B7
B9
B0
A
B1
B2
B3
B4
B5
B6
B7
B8
B9
PI49FCT3807
3.3V Fast CMOS Clock Driver
2PS7010D 09/08/04
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Note:
Stresses greater than those listed under 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 specication is
not implied. Exposure to absolute maximum rating condi-
tions for extended periods may affect reliability.
DC Electrical Characteristics (TA = –40°C to +85°C VCC = 3.3V ±0.3V)
Symbol Parameters Test Conditions(1) Min. Typ. Max. Units
VOH Output High Voltage VCC = Min.,
VIN = VIL or VIH
IOH = -0.1mA
IOH = -8mA
VCC -0.2
2.4(3)
-
3.0
V
VOL Output Low Voltage VCC = Min.,
VIN = VIL or VIH
IOH = 0.1mA
IOH = 16mA
IOH = 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 1µA
IIL Input Low Current VCC = Max. VIN = GND -1
VIK Clamp Diode Voltage VCC = Min., IIN = -18mA -0.7 -1.2 V
IODH Output High Current(4, 5) VOUT = 1.5V, VIN = VIL or VIH, VCC = 3.3V -35 -60 -110
mAIODL Output Low Current(4, 5) VOUT = 1.5V, VIN = VIL or VIH, VCC = 3.3V 50 90 200
IOS Short Circuit Current(4, 5) VCC = Max., VOUT = GND -60 -135 -240
VH Input Hysteresis 150 mV
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 & D/O Only) ..–0.5V to +7.0V
DC Input Voltage ....................................................................–0.5V to +7.0V
DC Output Current............................................................................... 120mA
Power Dissipation ................................................................................... 0.5W
Notes:
1. For Max. or Min. conditions, use appropriate value specied 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. This 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.
PI49FCT3807
3.3V Fast CMOS Clock Driver
3PS7010D 09/08/04
Power Supply Characteristics
Parameters Description Test Conditions(1) Min. Typ(2) Max. Units
ICC Quiescent Power
Supply Current VCC = Max. VIN = GND or VCC — 3 30
µA
∆ICC
Supply Current per
Inputs @ TTL
HIGH
VCC = Max. VIN = VCC 0.6V(3) — 2.0 300
ICCD Supply Current per
Input per MHz(4)
VCC = Max.,
Outputs Open
Per Output Toggling
50% Duty Cycle
VIN = VCC, VIN = GND — mA/
MHz
Notes:
1. For Max. or Min. conditions, use appropriate value specied 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 – 0.6V); all other inputs at VCC or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the IC formula. These limits are guaranteed but not tested.
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(1) Description Test Conditions Typ Max. Units
CIN Input Capacitance VIN = 0V 4.5 6.0 pF
COUT Output Capacitance VOUT = 0V 5.5 8.0
Notes:
1. This parameter is determined by device characterization but is not production tested.
Switching Characteristics over Operating Range
Symbol Description Test Condi-
tions
3807 3807A 3807B 3807C
UnitsCom. Com. Com. Com.
Min. Max. Min. Max. Min. Max. Min. Max.
tPLH
tPHL Propagation Delay A to BN
CL = 50pF
RL = 500Ω
1.5 4.5 1.5 4.0 1.5 3.8 1.5 3.5
ns
tSK(o) Skew between two outputs
of same package(3) 0.5 0.5 0.35 0.35
tSK(P)
Skew between opposite
transitions of the same out-
put (tPHL - tPHL)(3)
0.5 0.5 0.35 0.35
tSK(t)
Skew between outputs of
different packages at the
same power supply, temp.
and speed grade(3)
1.0 1.0 0.75 0.75
Notes:
1. See test circuits and waveforms
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. These parameters are guaranteed by design.
PI49FCT3807
3.3V Fast CMOS Clock Driver
4PS7010D 09/08/04
Switching Waveforms
Propagation Delay
Package Skew – tSK(t)
Pulse Skew – tSK(p)
Output Skew – tSK(o)
Switch Position
Test Switch
Disable LOW
Enable LOW 6V
Disable HIGH
Enable HIGH
GND
All Other Inputs Open
Denitions:
1. CL = Load capacitance: includes jig and
probe capacitance.
2. RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.
Pulse
Generator
D.U.T.
VIN
RT
VOUT
CL
VDD
Tests Circuits for All Outputs(1)
Input
tPLH
3V
1.5V
0V
Output
VOH
1.5V
VOL
tPHL
2.0V
0.5V
tRtF
Input
tPLH
3V
1.5V
0V
Output
VOH
1.5V
VOL
tPHL
tSK(p) = tPHL – tPLH
Input
tPLHx
3V
1.5V
0V
Ox
VOH
1.5V
VOL
tPHLx
tSK(o)
Oy
VOH
1.5V
VOL
tSK(o)
tPLHy tPHLy
tSK(o) = tPLHy – tPLHx or tPHLy – tPHLx
Input
tPLH1
3V
1.5V
0V
Package 1
Output
VOH
1.5V
VOL
tPHL1
tSK(t)
Package 2
Output
VOH
1.5V
VOL
tSK(t)
tPLH2 tPHL2
tSK(t) = tPLH2 – tPLH1 or tPHL2 – tPHL1
PI49FCT3807
3.3V Fast CMOS Clock Driver
5PS7010D 09/08/04
SEATING
PLANE
.050
BSC
1
20
0-8˚
.2914
.2992
X.XX
X.XX
DENOTES CONTROLLING
DIMENSIONS IN MILLIMETERS
7.40
7.60
.496
.511
12.60
12.99
1.27
.0926
.1043
2.35
2.65 .394
.419
10.00
10.65
.0040
.0118
0.10
0.30
.013
.020
0.33
0.51
.010
.029
0.254
0.737
.0091
.0125
0.23
0.32
0.41
1.27
.016
.050
x 45˚
.020
.030
0.508
0.762
REF
Packaging Mechanical: 20-pin SOIC (S)
Packaging Mechanical: 20-pin QSOP (Q)
PI49FCT3807
3.3V Fast CMOS Clock Driver
6PS7010D 09/08/04
.272
.295
.078
.002
SEATING
PLANE
.0098
Max.
.0256
BSC
.022
.037
.004
.009
.291
.322
1
20
.197
.220
0.25
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
0.050
7.40
8.20
0.55
0.95
0.09
0.25
5.00
5.60
2.00
6.90
7.50
0.65
Max
Min
Packaging Mechanical: 20-pin SSOP (H)
PI49FCT3807
3.3V Fast CMOS Clock Driver
7PS7010D 09/08/04
Ordering Information
Ordering Code Package Code Speed Grade Package Desciption
PI49FCT3807S S Blank 20-pin, 300-mil SOIC
PI49FCT3807SE S Blank Pb-free & Green, 20-pin, 300-mil SOIC
PI49FCT3807Q Q Blank 20-pin, 150-mil QSOP
PI49FCT3807QE Q Blank Pb-free & Green, 20-pin, 150-mil QSOP
PI49FCT3807H H Blank 20-pin, 209-mil SSOP
PI49FCT3807HE H Blank Pb-free & Green, 20-pin, 209-mil SSOP
PI49FCT3807AS S A 20-pin, 300-mil SOIC
PI49FCT3807ASE S A Pb-free & Green, 20-pin, 300-mil SOIC
PI49FCT3807AQ Q A 20-pin, 150-mil QSOP
PI49FCT3807AQE Q A Pb-free & Green, 20-pin, 150-mil QSOP
PI49FCT3807AH H A 20-pin, 209-mil SSOP
PI49FCT3807AHE H A Pb-free & Green, 20-pin, 209-mil SSOP
PI49FCT3807BS S B 20-pin, 300-mil SOIC
PI49FCT3807BSE S B Pb-free & Green, 20-pin, 300-mil SOIC
PI49FCT3807BQ Q B 20-pin, 150-mil QSOP
PI49FCT3807BQE Q B Pb-free & Green, 20-pin, 150-mil QSOP
PI49FCT3807BH H B 20-pin, 209-mil SSOP
PI49FCT3807BHE H B Pb-free & Green, 20-pin, 209-mil SSOP
PI49FCT3807CS S C 20-pin, 300-mil SOIC
PI49FCT3807CSE S C Pb-free & Green, 20-pin, 300-mil SOIC
PI49FCT3807CQ Q C 20-pin, 150-mil QSOP
PI49FCT3807CQE Q C Pb-free & Green, 20-pin, 150-mil QSOP
PI49FCT3807CH H C 20-pin, 209-mil SSOP
PI49FCT3807CHE H C Pb-free & Green, 20-pin, 209-mil SSOP
Notes:
1. Thermal Characteristics can be found on the web at www.pericom.com/packaging/
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com