鈩?/div>
(25鈩?Series) PI74FCT2153T/2253T
High-Speed CMOS Dual 4-Input Multiplexer
Product Features:
鈥?PI74FCT153T/253T/2153T/2253T is pin compatible with
bipolar FAST鈩?Series at a higher speed and lower power
consumption
鈥?25鈩?series resistor on all outputs ( FCT2XXX only)
鈥?TTL input and output levels
鈥?Low ground bounce outputs (25鈩?series only)
鈥?Extremely low static power
鈥?Hysteresis on all inputs
鈥?Industrial operating temperature range: 鈥?0擄C to +85擄C
鈥?Packages available:
鈥?16-pin 150 mil wide plastic QSOP (Q)
鈥?16-pin 300 mil wide plastic SOIC (S)
鈥?16-pin 150 mil wide plastic SOIC (W)
Product Description:
Pericom Semiconductor鈥檚 PI74FCT series of logic circuits are pro-
duced in the Company鈥檚 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
鈥渓ive insertion鈥?of boards when used as backplane drivers.
Logic Block Diagram
E
b
E
a
S
1
S
0
I
0a
I
1a
I
2a
I
3a
I
0b
I
1b
I
2b
I
3b
3-State Enable
on 253 Only
O
a
O
b
1
PS2009A 03/09/96
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