器件名称: 74HCT158
功能描述: Quad 2-input multiplexer; inverting
文件大小: 44.34KB 共7页
简 介:INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications The IC06 74HC/HCT/HCU/HCMOS Logic Package Information The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines
74HC/HCT158 Quad 2-input multiplexer; inverting
Product specication File under Integrated Circuits, IC06 December 1990
Philips Semiconductors
Product specication
Quad 2-input multiplexer; inverting
FEATURES Inverting data path Output capability: standard ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT158 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 74HC/HCT158 are quad 2-input multiplexers which select 4 bits of data from two sources and are controlled by a common data select input (S). The four outputs present the selected data in the inverted form. The enable input (E) is active LOW. When E is HIGH, all the outputs (1Y to 4Y) are forced HIGH regardless of all other input conditions. QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns
74HC/HCT158
Moving the data from two groups of registers to four common output buses is a common use of the “158”. The state of S determines the particular register from which the data comes. It can also be used as a function generator. The device is useful for implementing highly irregular logic by generating any four of the 16 different functions of two variables with……
