DM74LS258 Datasheet PDF (TRI-STATE Quad 2-Data Selectors/Multiplexers) | Download National Semiconductor DM74LS258

DM74LS258 - TRI-STATE Quad 2-Data Selectors/Multiplexers

Datasheet Summary

Description

These Schottky-clamped high-performance multiplexers feature TRI-STATE outputs that can interface directly with data lines of bus-organized systems With all but one of the common outputs disabled (at a high impedance state) the low impedance of the single enabled output will drive the bus line to a

Features

Y Y Y Y Y Y TRI-STATE versions LS157 and LS158 with same pinouts Schottky-clamped for significant improvement in A-C performance Provides bus interface from multiple sources in highperformance systems Average propagation delay from data input 12 ns Typical power dissipation LS257B 50 mW LS258B 35 mW Alternate military aerospace devices (54LS257A 54LS258A) are available Contact a National Semiconductor Sales Office Distributor for specifications Connection Diagrams Dual-In-Line Package Dual-.

Datasheet Details

Part number	DM74LS258
Manufacturer	National Semiconductor
File Size	163.71 KB
Description	TRI-STATE Quad 2-Data Selectors/Multiplexers
Datasheet	DM74LS258 Datasheet
Additional preview pages of the DM74LS258 datasheet.

📁 Similar Datasheet

DM74LS251 - 3-STATE 1-of-8 Line Data Selector/Multiplexer (Fairchild Semiconductor)

DM74LS253 - 3-STATE Data Selector/Multiplexer (Fairchild Semiconductor)

DM74LS257B - 3-STATE Quad 2-Data Selectors/Multiplexers (Fairchild Semiconductor)

DM74LS259 - 8-Bit Addressable Latch (Fairchild Semiconductor)

DM74LS20 - Dual 4-Input NAND Gate (Fairchild Semiconductor)

DM74LS221 - Dual Non-Retriggerable One-Shot (Fairchild Semiconductor)

DM74LS240 - Octal 3-STATE Buffer/Line Driver/Line Receiver (Fairchild Semiconductor)

DM74LS241 - Octal 3-STATE Buffer/Line Driver/Line Receiver (Fairchild Semiconductor)

DM74LS243 - Quadruple Bus Transceiver (Fairchild Semiconductor)

DM74LS244 - Octal 3-STATE Buffer/Line Driver/Line Receiver (Fairchild Semiconductor)

Full PDF Text Transcription

Click to expand full text

54LS257A DM54LS257B DM74LS257B 54LS258A DM54LS258B DM74LS258B TRI-STATE Quad 2-Data Selectors Multiplexers June 1989 54LS257A DM54LS257B DM74LS257B 54LS258A DM54LS258B DM74LS258B TRI-STATE Quad 2-Data Selectors Multiplexers General Description These Schottky-clamped high-performance multiplexers feature TRI-STATE outputs that can interface directly with data lines of bus-organized systems With all but one of the common outputs disabled (at a high impedance state) the low impedance of the single enabled output will drive the bus line to a high or low logic level To minimize the possibility that two outputs will attempt to take a common bus to opposite logic levels the output enable circuitry is designed such that the output disable times are shorter than the output enable times This TRI-S

Published: Oct 9, 2005 |