SN74ALS257A - Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs

Updated : 2020-01-09 14:43:05

Description

These data selectors/multiplexers are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable () input is at a high logic level.

The SN54ALS257A and SN54ALS258A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS257A, SN74ALS258A, SN74AS257, and SN74AS258 are characterized for operation from 0°C to 70°C.

Products containing the "SN74ALS257A" keyword are: SN74ALS257AD , SN74ALS257AD , SN74ALS257ADB , SN74ALS257ADG4 , SN74ALS257ADG4 , SN74ALS257ADR , SN74ALS257ADR , SN74ALS257ADRE4 , SN74ALS257AN , SN74ALS257AN , SN74ALS257ANE4 , SN74ALS257ANE4 , SN74ALS257ANG4 , SN74ALS257ANS , SN74ALS257ANSR , SN74ALS257ANSR , SN74ALS257ANSRG4

Features

3-State Outputs Interface Directly With System Bus
Provide Bus Interface From Multiple Sources in High-Performance Systems
Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

Parametrics

Status	ACTIVE
SubFamily	Encoders & decoders
Technology Family	ALS
VCC	5.5
Bits	2
Voltage	5
F @ nom voltage	75
ICC @ nom voltage	14
tpd @ Nom Voltage	12
Rating	Catalog
Operating temperature range	0 to 70
Package Group	PDIP\|16
Package size: mm2:W x L (PKG)	See datasheet (PDIP)
Approx. price	0.46 \| 1ku