PI74FCT138T Datasheet, PDF (1/6 Pages) Pericom Semiconductor Corporation – Fast CMOS 1-of-8 Decoder

PI74FCT138/238T
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PI74FCT238T
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Fast CMOS 1-of-8 Decoder
Product Features:
• PI74FCT138/238T is pin compatible with bipolar FAST™
Series at a higher speed and lower power consumption
• TTL input and output levels
• 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)
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.
These high-speed decoders accept three binary weighted inputs
(A0, A1, A2) and gives eight mutually exclusive active LOW
outputs (O0-O7: PI74FCT138T) or active HIGH outputs (O0-O7:
PI74FCT238T) when enabled. These devices contain three enable
inputs, two active LOW (E1, E2) and one active HIGH (E3). On the
PI74FCT138T all outputs will be HIGH and on the PI74FCT238T
all outputs will be LOW, except when E1 and E2 are LOW and E3
is HIGH.
Logic Block Diagram
A2
A1
A0
E1 E2 E3
O7
O6
O5
O4
O3
O2
O1
O0
PI74FCT138T function shown.
1
PS2004A 03/09/96