SN54F157A
SN54F157A is Quadruple 2-Line To 1-Line Data Selectors/Multiplexer manufactured by Texas Instruments.
description
The ′F157A is a quadruple 2-input data selector/multiplexer featuring a mon strobe (G) input. When the strobe is high, all outputs are low. When the strobe is low, a 4-bit word is selected from one of two sources and is routed to the four outputs. The ′F157A provides true data.
The SN54F157A is characterized for operation over the full military temperature range of
- 55°C to 125°C. The SN74F157A is characterized for operation from 0°C to 70°C.
FUNCTION TABLE
INPUTS G A /B A
OUTPUT
SN54F157A . . . J PACKAGE SN74F157A . . . D OR N PACKAGE
(TOP VIEW)
A /B 1 1A 2 1B 3 1Y 4 2A 5 2B 6 2Y 7 GND 8
16 VCC 15 G 14 4A 13 4B 12 4Y 11 3A 10 3B 9 3Y
SN54F157A . . . FK PACKAGE (TOP VIEW)
A/B
1A
1B
3 2 1 20 19
4A
1Y 5
17 4B
NC 6
16 NC
2A 7
15...
