QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS
The LSTTL / MSI SN54 / 74LS257B and the SN54 / 74LS258B are Quad 2-Input Multiplexers with 3-state outputs. Four bits of data from two sources can be sele...
Datasheets by Manufacturer
54LS257B — Texas Instruments — QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
54LS256 — National Semiconductor — Dual 4-Bit Addressable Latch
54LS258B — Texas Instruments — QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS