54F157A Datasheet | National Semiconductor

Description The ’F157A is a high-speed quad 2-input multiplexer Four bits of data from two sources can be selected using the mon Select and Enable inputs The four outputs present the selected data in the true (non-inverted) form The ’F157A can also be used to generate any four of the 16 different functions to two variables Features Guaranteed 4000V minimum ESD protection mercial 74F157APC Military Package Number N16E Package Description 16-Lead (0 300 Wide) Molded Dual-In-Line 16-Lead Ceramic Dual-In-Line 16-Lead (0 150 Wide) Molded Small Outline JEDEC 16-Lead (0 300 Wide) Molded Small Outline EIAJ 16-Lead Cerpack 20-Lead Ceramic Leadless Chip Carrier Type C 54F157ADM (Note 2) 74F157ASC (Note 1) 74F157ASJ (Note 1) 54F157AFM (Note 2) 54F157ALM (Note 2) J16A M16A M16D W16A E20A Note 1 Devices also available in 13 reel Use suffix e SCX and SJX Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB Logic Symbols Connection Diagrams Pin Assignment for DIP SOIC and Flatpak Pin Assignment for LCC TL F 9483- 3 IEEE IEC TL F 9483 - 1 TL F 9483 - 2 TL F 9483- 5 TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation TL F 9483 RRD-B30M75 Printed in U S A .. .. Unit Loading Fan Out 54F 74F Pin Names Description UL HIGH LOW 10 10 10 10 10 10 10 10 50 33 3 Input IIH IIL Output IOH IOL 20 m A b0 6 m A 20 m A b0 6 m A 20 m A b0 6 m A 20 m A b0 6 m A b 1 m A 20 m A I0a - I0d I1a - I1d E S Za - Zd Source 0 Data Inputs Source 1 Data Inputs Enable Input (Active LOW) Select Input Outputs Functional Description The ’F157A is a quad 2-input multiplexer It selects four bits of data from two sources under the control of a mon Select input (S) The Enable input (E) is active LOW When E is HIGH all of the outputs (Z) are forced LOW regardless of all other inputs The ’F157A is the logic implementation of a 4-pole 2-position switch where the position of the switch is...