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INTEGRATED CIRCUITS
74F157*, 74F157A, 74F158*, 74F158A Data selectors/multiplexers
* Discontinued part. Please see the Discontinued Product List in Section 1, page 21.
Product specification IC15 Data Handbook
1996 Mar 12
Philips Semiconductors
Philips Semiconductors
Product specification
Data selectors/multiplexers
74F157A: 74F158A:
DESCRIPTION
The 74F157A is a high speed Quad 2-Input Multiplexer which selects 4 bits of data from one of two sources under the control of a common Select input (S). The Enable input (E) is active when Low. When E is High, all of the outputs (Yn) are forced Low regardless of all other input conditions. Moving data from two registers to a common output bus is a common use of the 74F157A.