SN54ALS137A, SN74ALS137A, SN74AS137 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS WITH ADDRESS LATCHES

SDAS203C - APRIL 1982 - REVISED JANUARY 1995

features

Combines Decoder and 3-Bit Address Latch
Incorporates Two Output Enables to Simplify Cascading
Package Options Include Plastic Small- Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

description

The SN54ALS137A, SN74ALS137A, and SN74AS137 are 3-line to 8-linedecoders/demultiplexers with latches on the three address inputs.When the latch-enable ()input is low, the devices act as decoders/demultiplexers. When goes from low to high, the addresspresent at the select (A, B, and C) inputs is stored in the latches.Further address changes are ignored as long as remains high. The output-enablecontrols (G1 and G2\) control the outputs independently of the selector latch-enable inputs. All of the outputs are forced high if G1 islow or G2\ is high. These devices are ideally suited for implementingglitch-free decoders in strobed (stored-address) applications inbus-oriented systems.

The SN54ALS137A is characterized for operation over the fullmilitary temperature range of -55°C to 125°C. TheSN74ALS137A and SN74AS137 are characterized for operation from0°C to 70°C.

Title: 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS WITH ADDRESS LATCHES
Product Family: DEMULTIPLEXERS
Device Functionality: DECODER/DEMULTIPLEXER
Orderable Devices: 5962-9066501M2A, 5962-9066501MEA, 5962-9066501MFA, SN74ALS137AD, SN74ALS137ADR, SN74ALS137AN, SN74AS137DR, SN74AS137N

View the complete PDF datasheet: sdas203c.pdf (111 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN54ALS137A, SN74ALS137A, SN74AS137

Go to the Engineering Design Center to locate information on other TI Semiconductor devices.