SN74ALS251 - Texas Instruments

SN74ALS251 1-of-8 Data Selectors/Multiplexers

These data selectors/multiplexers contain full binary decoding to select one-of-eight data sources and feature controlled complementary 3-state outputs. The 3-state outputs can interface with and drive data lines of bus-organized systems. With all but one of the common outputs disabled (at the high-impedance state), the low impedance of the signal-enabled ou.

Features

eration from 0°C to 70°C. SN54ALS251, SN74ALS251 1ĆOFĆ8 DATA SELECTORS/MULTIPLEXERS WITH 3ĆSTATE OUTPUTS SDAS215A − APRIL 1982 − REVISED DECEMBER 1994 SN54ALS251 . . . J PACKAGE SN74ALS251 . . . D OR N PACKAGE (TOP VIEW) D3 1 D2 2 D1 3 D0 4 Y5 W6 OE 7 GND 8 16 VCC 15 D4 14 D5 13 D6 12 D7 11 A 10 B 9C SN54ALS251 . . . FK PACKAGE (TOP VIEW) D4 VCC NC D3 D2 3 2 1 20 19 D1 4 18 D5 D0 5 17 D6 NC 6 16 NC Y7 15 D7 W8 14 A 9 10 11 12 13 B C NC GND OE NC − No internal connection FUNCTION TABLE INPUTS SELECT OUTPUTS OE C B A Y W X X X H Z Z L L L L D0 D0 .