74HC/HCT139 Philips Semiconductors (Acquired by NXP), 74HC/HCT139 Datasheet - Page 3

• Manufacturer Part Number: 74HC/HCT139
• Description: Dual 2-to-4 Line Decoder/demultiplexer
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
PIN DESCRIPTION
September 1993
PIN NO.
1, 15
2, 3
4, 5, 6, 7
8
12, 11, 10, 9
14, 13
16
Dual 2-to-4 line decoder/demultiplexer
Fig.1 Pin configuration.
(a)
SYMBOL
1E, 2E
1A
1Y
GND
2Y
2A
V
CC
0
0
0
0
, 1A
, 2A
to 1Y
to 2Y
1
1
3
3
Fig.3 IEC logic symbol.
NAME AND FUNCTION
enable inputs (active LOW)
address inputs
outputs (active LOW)
ground (0 V)
outputs (active LOW)
address inputs
positive supply voltage
3
Fig.2 Logic symbol.
(b)
74HC/HCT139
Product specification