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PI49FCT32802 PI49FCT32803
1:5/1:7 3.3V CMOS Clock Drivers
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 Tolerant input Rail-to-Rail CMOS outputs Industrial Temperature: -40C to +85C 3.3V 10% operation Packages (Pb-free & Green available): - 16-pin 150-mil wide QSOP (Q) - 16-pin 173-mil wide TSSOP (L)
Description
Pericom Semiconductor's PI49FCT3280x is a 3.3V very low-skew clock buffer from a single low-capacitance input that produces five outputs on PI49FCT32802 and seven outputs on PI49FCT32803. Excellent output signals to power and ground ratio minimize power and ground noise, and also improves output performance. The PI49FCT3280x integrates series damping resistors on all outputs.
Pin Configuration (PI49FCT32802)
A
GND B0
1
2 3
4 5
6
16
15 14
VCC
B4 B3
GND B2
VCC
Block Diagram (PI49FCT32802)
B0
B1
VCC B1
GND
16-Pin L, Q
13 12
11
NC VCC
7 8
10 9
NC GND
A
B2
B3
B4
Pin Configuration (PI49FCT32803)
A GND B0 1 2 3 4 5 6
7 8
16 15 14
VCC B6 B5 GND B4 VCC
B3 GND
Block Diagram (PI49FCT32803)
B0
B1
VCC B1 GND
B2 VCC
16-Pin L, Q
13 12 11
10 9
A
B2
B3
Pin Description
Pin Name PI49FCT32802 PI49FCT32803 A B0-B6 GND VCC A B0-B4 GND VCC Description Input Outputs Ground Power
B6
1
PS8704A
9/22/04
PI49FCT32802 PI49FCT32803 1:5/1:7 3.3V CMOS Clock Drivers Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ............................................................ -65C to +150C Ambient Temperature with Power Applied ........................... -40C to +85C Supply Voltage to Ground Potential........................................-0.5V to +5.5V DC Input Voltage ....................................................................-0.5V to +5.5V DC Output Current............................................................................... 120mA Power Dissipation ................................................................................... 0.5W
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 specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
DC Electrical Characteristics (Over the Operating Range)
Symbol VOH VOL VIH VIL IIH IIL VIK IOH IOL IOS VH RS Description Output HIGH voltage Output LOW voltage Input HIGH voltage Input LOW voltage Input HIGH current Input LOW current Clamp diode voltage Output HIGH current Output LOW current Short circuit current(5) Input Hysteresis Series Resistor VCC=3V,VIN=VIH or VIL VCC=3V, VIN=VIH or VIL
Test Conditions(1) IOH = -8mA IOL = 12mA
Min. 2.4 - 2 -0.5 - - - 1.5V(5) 1.5V(5) -25 25 -50 -
Typ. 3 0.4 - - - - -0.7 -45 45 -100 150 22
Max. - 0.5 5.5 0.8 1 -1 -1.2 -80 90 -180 -
Units
Guaranteed Logic HIGH Level (Input Pins) Guaranteed Logic LOW Level (Input Pins) VCC = 3.6V VCC = 3.6V VCC = Min., IIN = -18mA VCC = 3.3V, VIN = VIH or VIL, VOUT = VCC = 3.3V, VIN = VIH or VIL, VOUT = VCC = Max., VOUT = GND(5) VIN = 3.6V VIN = 0V
V
A V mA mV
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 3.3V, +25C 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.
2
PS8704A
9/22/04
PI49FCT32802 PI49FCT32803 1:5/1:7 3.3V CMOS Clock Drivers Power Supply Characteristics
Parameters ICC ICC Description Quiescent Power Supply Current Supply Current per Inputs @ TTL HIGH Supply Current per Input per MHz(4) VCC = Max. VCC = Max. VCC = Max., Outputs Open Per Output Toggling 50% Duty Cycle Test Conditions(1) VIN = GND or VCC VIN = VCC - VIN = VCC VIN = GND 0.6V(3) Min. -- -- -- 0.08 0.16 Typ(2) 0.1 47 Max. 30 A 300 mA/ MHz Units
ICCD
Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at VCC = 3.3V, +25C 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 = 25C, f = 1 MHz)
Parameters(1) Description Input Capacitance Output Capacitance Test Conditions VIN = 0V VOUT = 0V Typ 3.0 Max. 4 6 Units pF CIN COUT
Notes: 1. This parameter is determined by device characterization but is not production tested.
Maximum Switching Characteristics (Over operating range)
Symbol tPLH tPHL tR/tF tSK(p) tSK(o) tSK(t) FIN Description Propagation Delay A to Bn(3) Rise/Fall Time(2) Pulse Skew (same pkg)(1,2) pkg.)(1,2) CL =15pF Output Skew (same pkg.)(1,2) Output Skew (different Input Frequency(1,2) Condition CL =15pF 0.8V -2.0V Max. 2.5 1.5 0.35 0.2 0.55 133 MHz ns Units
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.
3
PS8704A
9/22/04
PI49FCT32802 PI49FCT32803 1:5/1:7 3.3V CMOS Clock Drivers Switching Waveforms
Propagation Delay
3V Input tPLH
Output
tR
Pulse Skew - tSK(p)
3V Input tPLH
Output
tPHL
1.5V
tPHL
1.5V 0V
VOH
1.5V VOL
tSK(p) = tPHL - tPLH
0V
VOH
1.5V VOL
2.0V
0.5V
tF
Output Skew - tSK(o)
3V Input tPLHx
Package Skew - tSK(t)
1.5V
3V Input tPLH1
Package 1 Output
tSK(t)
Package 2 Output
tPLH2
tPHL2
tPHLx
0V
1.5V
tPHL1
VOH
0V
VOH
1.5V
tSK(t)
Ox
1.5V
tSK(o)
tSK(o)
VOL
VOL
VOH
1.5V VOL
VOH
Oy
1.5V
tPLHy
tPHLy
VOL
tSK(o) = tPLHy - tPLHx or tPHLy - tPHLx
tSK(t) = tPLH2 - tPLH1 or tPHL2 - tPHL1
Tests Circuits for All Outputs
VCC
Pulse Generator f = 125MHz
D.U.T.
50
CL 15pF
4
PS8704A
9/22/04
PI49FCT32802 PI49FCT32803 1:5/1:7 3.3V CMOS Clock Drivers Packaging Mechanical: 16-pin QSOP (Q)
16
.008 0.20 MIN.
.150 .157
3.81 3.99
.008 .013 0.20 0.33
Guage Plane
.010 0.254
1
.189 .197 4.80 5.00
.008 0.203 REF
Detail A
.016 .035 0.41 0.89
.041 1.04 REF
0-6
.015 x 45 0.38
.053 1.35 .069 1.75
SEATING PLANE
0.41 .016 1.27 .050
Detail A
.007 .010
0.178 0.254
.025 BSC 0.635
.008 .012 0.203 0.305
.004 0.101 .010 0.254
.228 .244 5.79 6.19
X.XX DENOTES DIMENSIONS IN MILLIMETERS X.XX
Packaging Mechanical: 16-pin TSSOP (L)
16
.169 .177
4.3 4.5
1
.193 .201 4.9 5.1
.004 .008
0.09 0.20
.047 max. 1.20
SEATING PLANE
0.45 .018 0.75 .030
.252 BSC 6.4
.0256 BSC 0.65
.007 .012
.002 .006
0.05 0.15
0.19 0.30
X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS
5
PS8704A
9/22/04
PI49FCT32802 PI49FCT32803 1:5/1:7 3.3V CMOS Clock Drivers
Ordering Information
Ordering Code PI49FCT32802Q PI49FCT32802QE PI49FCT32802L PI49FCT32802LE PI49FCT32803Q PI49FCT32803QE PI49FCT32803L PI49FCT32803LE Packaging Code Q Q L L Q Q L L Package Type 16-pin, 150-mil QSOP Pb-free and Green, 16-pin, 150-mil QSOP 16-pin, 173-mil TSSOP Pb-free and Green, 16-pin, 173-mil TSSOP 16-pin, 150-mil QSOP Pb-free and Green, 16-pin, 150-mil QSOP 16-pin, 173-mil TSSOP Pb-free and Green, 16-pin, 173-mil TSSOP
Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com
6
PS8704A 9/22/04

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