74HCT137D 查看數據表（PDF） - Philips Electronics
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74HCT137D Datasheet PDF : 8 Pages
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Philips Semiconductors
3-to-8 line decoder/demultiplexer with
address latches; inverting
PIN DESCRIPTION
PIN NO.
1, 2, 3
4
5
6
8
15, 14, 13, 12, 11, 10, 9, 7
16
SYMBOL
A0 to A2
LE
E1
E2
GND
Y0 to Y7
VCC
NAME AND FUNCTION
data inputs
latch enable input (active LOW)
data enable input (active LOW)
data enable input (active HIGH)
ground (0 V)
multiplexer outputs
positive supply voltage
Product specification
74HC/HCT137
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
December 1990
Fig.4 Functional diagram.
3
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