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PI74FCT138T Datasheet

  • PI74FCT138T

  • Fast CMOS 1-of-8 Decoder

  • 58.42KB

  • 6頁

  • PERICOM   PERICOM

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PI74FCT138/238T
1-OF-8 DECODER
PI74FCT138T
PI74FCT238T
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
Fast CMOS 1-of-8 Decoder
Product Features:
鈥?PI74FCT138/238T is pin compatible with bipolar FAST鈩?/div>
Series at a higher speed and lower power consumption
鈥?TTL input and output levels
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.
These high-speed decoders accept three binary weighted inputs
(A
0
, A
1
, A
2
) and gives eight mutually exclusive active LOW
outputs (O
0
-O
7:
PI74FCT138T) or active HIGH outputs (O0-O7:
PI74FCT238T) when enabled. These devices contain three enable
inputs, two active LOW (E
1
, E
2
) and one active HIGH (E
3
). On the
PI74FCT138T all outputs will be HIGH and on the PI74FCT238T
all outputs will be LOW, except when E
1
and E
2
are LOW and E
3
is HIGH.
Logic Block Diagram
A
2
A
1
A
0
E
1
E
2
E
3
O
7
O
6
O
5
O
4
O
3
O
2
O
1
O
0
PI74FCT138T function shown.
1
PS2004A 03/09/96

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