
1
PS2009A 03/09/96
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PI74FCT153T/253T
(25
Series) PI74FCT2153T/2253T
Series) PI74FCT2153T/2253T
HIGH SPEED CMOS DUAL 4-INPUT MULTIPLEXER
(25
Product Description:
Pericom Semiconductor’s PI74FCT series of logic circuits are pro-
duced in the Company’s advanced 0.8 micron CMOS technology,
achieving industry leading speed grades. All PI74FCT2XXX devices
have a built-in 25-ohm series resistor on all outputs to reduce noise
resulting from reflections, thus eliminating the need for an external
terminating resistor.
The PI74FCT153T/253T and PI74FCT2153T/2253T are high-
speed dual 4-input multiplexers. The PI74FCT153T/2153T has
TTL outputs, while the PI74FCT253T/2253T has 3-state outputs.
The output buffers are designed with a power-off disable allowing
“l(fā)ive insertion” of boards when used as backplane drivers.
Logic Block Diagram
Product Features:
PI74FCT153T/253T/2153T/2253T is pin compatible with
bipolar FAST Series at a higher speed and lower power
consumption
25
series resistor on all outputs ( FCT2XXX only)
TTL input and output levels
Low ground bounce outputs (25
series only)
Extremely low static power
Hysteresis on all inputs
Industrial operating temperature range: –40°C to +85°C
Packages available:
– 16-pin 150 mil wide plastic QSOP (Q)
– 16-pin 300 mil wide plastic SOIC (S)
– 16-pin 150 mil wide plastic SOIC (W)
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High-Speed CMOS Dual 4-Input Multiplexer
O
b
I
3b
I
2b
I
1b
I
0b
O
a
I
3a
I
2a
I
1a
I
0a
S
0
S
1
E
a
E
b
3-State Enable
on 253 Only