PI49FCT32805
3.3V, 2 x 1:5 CMOS Clock Driver
Features
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Description
Low output skew: <270ps
Switching frequency of 133 MHz
Fast output rise/fall time <1.5ns
Low propagation delay <3.0ns
Low input capacitance <6.0pF
Balanced 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)
Pericom Semiconductor’s PI49FCT32805 is a fast speed, low skew,
fast slew rate, and low propagation delay for most computing and
communication applications.
The devices are non-inverting drivers. The outputs are configured
into 2 groups of 1-in, 5-out with independent output enable. Group
B has an extra MON output. Excellent output signals to power and
ground ratio minimize power and ground noise, and also improves
output performance.
PI49FCT32805 integrate series damping resistors on all outputs.
Block Diagram
Pin Configuration
VCCA
OEA, OEB
INA, INB
OAN, OBN
MON
GND
VCC
OB1
4
17
OB2
5
16
GNDB
6
15
OB3
7
14
OB4
8
13
MON
9
12
OEB
INA
10
11
INB
Truth Table(1)
Pin Description
Pin Name
18
OEA
MON
3
OA3
OEB
OB0
GNDA
OB0-4
19
GNDQ
INB
2
OA4
5
VCCB
OA1
OA0-4
20
OA2
5
INA
1
OA0
OEA
Inputs
Description
Hi-Z State Output Enable Inputs
(Active LOW)
Clock Inputs
Clock Outputs
Monitor Output
Ground
Power
OEA,
OEB
L
L
H
H
Outputs
INA,
INB
L
H
L
H
OAN,
OBN
MON
L
H
Z
Z
L
H
L
H
Note:
1. H = High Voltage Level, L = Low Voltage Level
Z = High Impedance
1
PS8494C
12/19/05
