74HC154 查看數據表（PDF） - Philips Electronics
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74HC154 Datasheet PDF : 7 Pages
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Philips Semiconductors
4-to-16 line decoder/demultiplexer
PIN DESCRIPTION
PIN NO.
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17
18, 19
12
23, 22, 21, 20
24
SYMBOL
Y0 to Y15
E0, E1
GND
A0 to A3
VCC
Product specification
74HC/HCT154
NAME AND FUNCTION
outputs (active LOW)
enable inputs (active LOW)
ground (0 V)
address inputs
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
(a)
(b)
Fig.3 IEC logic symbol.
September 1993
Fig.4 Functional diagram.
3
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