1PS8496B 11/13/08
3.3V 1:10 CMOS Clock Driv er
Description
Pericom Semiconductor’s PI49FCT32807 is a 3.3V very low-
skew clock buffer that produces ten outputs from a single low-
capacitance input. Excellent output signals to power and ground
ratio minimize power and ground noise, and also improves output
performance.
The PI49FCT32807 integrates series damping resistors on all
outputs.
Pin Confi guration
Pin Description
Pin Name Description
A Input
B0-B9Outputs
GND Ground
VCC Power
Block Di a gram
PI49FCT32807
Features
• Low skew: < 200ps
• Fast switching frequency >133 MHz
• Fast output rise/fall time < 1.5ns
• Low propagation delay < 2.5ns
• Low input capacitance < 6.0pF
• 5V I/O Tolerant input
• Rail-to-Rail CMOS outputs
• Industrial Temperature: –40°C to +85°C
• 3.3V ±10% operation
• Packaging (Pb-free & Green Available):
– 20-pin 300-mil wide SOIC (S)
– 20-pin 150-mil wide QSOP (Q)
– 20-pin 209-mil wide SSOP (H)
VCC
A1 20
B9GND 2 19
B8B0 3 18
GNDVCC 417
B7B1 5 16
VCC
GND 6 15
B6B2 7 14
GNDVCC 813
B5B3 9 12
B4GND 10 11
B0
A
B1
B2
B3
B4
B5
B6
B7
B8
B9
08-0298
PI49FCT32807
3.3V 1:10 CMOS Clock Driver
2PS8496B 11/13/08
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 op er a tion
of the device at these or any other con di tions above those
indicated in the operational sec tions of this spec i fi ca tion is
not implied. Ex po sure to ab so lute maximum rating condi-
tions for extended pe ri ods may affect re li abil i ty.
DC Electrical Characteristics (Over the Operating Range)
Symbol Parameter Test Condition(1) Min. Typ. Max. Units
VOH Output High Voltage VCC = 3V, VIN = VIH or VIL IOH = -8mA 2.4 3.0
V
VOL Output Low Voltage VCC = 3V VIH or VIL IOL = 12mA 0.4 0.5
VIH Input High Voltage Guaranteed Logic HIGH Level (Input pins) 2.0 505
VIL Input Low Voltage Guaranteed Logic LOW Level (Input pins) -0.5 0.8
IIH Input High Current VCC = 3.6V VIN = 3.6V 1 μA
IIL Input Low Current VCC = 3.6V VIN = 0V -1
VIK Clamp Diode Voltage VCC = Min., IIN = -18mA -0.7 -1.2 V
IOH Output HIGH Current VCC = 3.3V, VIN =VIL or VIH, VOUT = 1.5V(5) -25 -45 -80
mAIOL Output LOW Current VCC = 3.3V, VIN =VIL or VIH, VOUT = 1.5V(5) 25 45 90
IOS Short Circuit(5) Current VCC = Max., VOUT = GND(5) -50 -100 -180
VHInput Hysteresis 150 mV
RSInternal Series Resistor 22 Ω
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 specifi 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.
08-0298
PI49FCT32807
3.3V 1:10 CMOS Clock Driver
3PS8496B 11/13/08
Power Supply Characteristics
Parameters De scrip tion Test Conditions(1) Min. Typ(2) Max. Units
ICC Quiescent Power
Supply Current VCC = Max. VIN = GND
or VCC — 0.1 30
μA
ΔICC Supply Current per
Inputs @ TTL HIGH VCC = Max. VIN = VCC
– 0.6V(3) — 47 300
ICCD Supply Current per
Input per MHz(4)
VCC = Max.,
Outputs Open
Per Output Toggling
50% Duty Cycle
VIN = VCC
VIN = GND — 0.08 0.16 mA/
MHz
Notes:
1. For Max. or Min. conditions, use appropriate value specifi 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) De scrip tion Test Conditions Typ Max. Units
CIN Input Capacitance VIN = 0V 3.0 4 pF
COUT Output Capacitance VOUT = 0V 6
Notes:
1. This parameter is determined by device characterization but is not production tested.
Maximum Switching Characteristics (Over operating range)
Symbol Description Condition Max. Units(3)
tPLH
tPHL Propagation Delay A to BN(3) CL = 15pF 2.5
ns
tR/tFRise/Fall Time(2) 0.8V - 2.0V 1.5
tSK(P) Pulse Skew, same package(1, 2)
CL = 15pF
0.35
tSK(O) Output Skew, same package(1, 2) 0.20
tSK(I) Package Skew, different package(1, 2) 0.55
FIN Input Frequency(1, 2) 133 MHz
Notes:
1. Other loading condition is described on page 4, “Test Circuits for All Outputs.”
2. These parameters are guaranteed by design.
3. Minimum propagation delay of 1.5ns is guaranteed by design.
08-0298
PI49FCT32807
3.3V 1:10 CMOS Clock Driver
4PS8496B 11/13/08
Tests Circuits for All Outputs
Switching Waveforms
Propagation Delay
Package Skew – tSK(t)
Pulse Skew – tSK(p)
Output Skew – tSK(o)
Input
t
PLH
3V
1.5V
0V
Output V
OH
1.5V
V
OL
t
PHL
2.0V
0.5V
t
R
t
F
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
⎥
Input
tPLH
3V
1.5V
0V
Output VOH
1.5V
VOL
tPHL
tSK(p) = ⎥ tPHL – tPLH ⎥
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 ⎥
Pulse
Generator
f = 125MHz
D.U.T.
50ΩC
L
15pF
V
CC
08-0298
PI49FCT32807
3.3V 1:10 CMOS Clock Driver
5PS8496B 11/13/08
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Pericom Semiconductor Corporation
3545 N. 1st Street, San Jose, CA 95134
1-800-435-2335 • www.pericom.com
Packaging Mechanical: 20-pin SOIC (S)
08-0298
PI49FCT32807
3.3V 1:10 CMOS Clock Driver
6PS8496B 11/13/08
: 20-Pin, 209-Mil Wide, SSOPNOITPIRCSED
:EDOC EGAKCAP
1240-DP :# LORTNOC TNEMUCOD E:NOISIVER
80/01/40 :ETAD
H20
08-0140
Packaging Mechanical: 20-pin SSOP (H)
08-0298
PI49FCT32807
3.3V 1:10 CMOS Clock Driver
7PS8496B 11/13/08
.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
Packaging Mechanical: 20-pin QSOP (Q)
Ordering Information
Ordering Code Package Code Package Description
PI49FCT32807HE H Pb-free & Green, 20-pin 209-mil SSOP
PI49FCT32807QE Q Pb-free & Green, 20-pin 150-mil QSOP
PI49FCT32807SE S Pb-free & Green, 20-pin 300-mil SOIC
Notes:
1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
2. Number of Transistors = TBD
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
08-0298
