器件名称: 74AHC157D
功能描述: Quad 2-input multiplexer
文件大小: 84.52KB 共16页
简 介:INTEGRATED CIRCUITS
DATA SHEET
74AHC157; 74AHCT157 Quad 2-input multiplexer
Product specication File under Integrated Circuits, IC06 1999 Sep 24
Philips Semiconductors
Product specication
Quad 2-input multiplexer
FEATURES ESD protection: HBM EIA/JESD22-A114-A exceeds 2000 V MM EIA/JESD22-A115-A exceeds 200 V CDM EIA/JESD22-C101 exceeds 1000 V Balanced propagation delays All inputs have Schmitt-trigger actions Multiple input enable for easy expansion Ideal for memory chip select decoding Inputs accept voltages higher than VCC For AHC only: operates with CMOS input levels For AHCT only: operates with TTL input levels Specified from 40 to +85 and +125 °C. FUNCTION TABLE See note 1. INPUT E H L L L L Note 1. H = HIGH voltage level; L = LOW voltage level; X = don’t care. ORDERING INFORMATION OUTSIDE NORTH AMERICA 74AHC157D 74AHC157PW 74AHCT157D 74AHCT157PW PACKAGES NORTH AMERICA PINS 74AHC157D 74AHC157PW DH 74AHCT157D 74AHCT157PW DH 16 16 16 16 PACKAGE SO TSSOP SO TSSOP MATERIAL plastic plastic plastic plastic S X L L H H nI0 X L H X X nI1 X X X L H OUTPUT nY L L H L H DESCRIPTION
74AHC157; 74AHCT157
The 74AHC/AHCT157 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard No. 7A. The 74AHC/AHCT157 are quad 2-input multiplexers which select 4 bits of data from two sources under the control of a common data select input (S). The enable input (E) is active LOW. When E is HIG……
