74AC157
DESCRIPTION
The AC157 is an high-speed CMOS QUAD 2-CHANNEL MULTIPLEXER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power applications maintaining high speed operation similar to equivalent Bipolar Schottky TTL.
PRELIMINARY DATA
(Plastic Package)
(Micro Package)
ORDER CODES :
74AC157B
74AC157M
It consists of four 2-input digital multiplexers with mon select and strobe inputs. It is a non-inverting multiplexer. When the STROBE input is held high selection of data is inhibit and all the outputs bee low. The SELECT decoding determines whether the A or B inputs get routed to their corresponding Y outputs.
All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
May 1997
1/9
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No 1
2, 5, 11, 14
3, 6, 10, 13
4, 7, 9, 12 15 8...
