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SN54LS155 - DUAL 1-OF-4 DECODER/ DEMULTIPLEXER

General Description

The LS155 and LS156 are Dual 1-of-4 Decoder/Demultiplexers with common Address inputs and separate gated Enable inputs.

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Key Features

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📁 Similar Datasheet

Part Number Description Manufacturer
SN54LS155A DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS Texas Instruments
SN54LS151 Data Selectors/Multiplexers Texas Instruments
SN54LS153 Dual 4-Line To 1-Line Data Selectors/Multiplexers Texas Instruments
SN54LS156 DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS Texas Instruments
SN54LS157 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS Texas Instruments

Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
SN54LS15 TRIPLE 3-INPUT AND GATE
SN54LS151 8-INPUT MULTIPLEXER
SN54LS153 DUAL 4-INPUT MULTIPLEXER
SN54LS156 DUAL 1-OF-4 DECODER/ DEMULTIPLEXER
SN54LS157 QUAD 2-INPUT MULTIPLEXER

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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DUAL 1-OF-4 DECODER/ DEMULTIPLEXER The SN54 / 74LS155 and SN54 / 74LS156 are high speed Dual 1-of-4 Decoder/Demultiplexers. These devices have two decoders with common 2-bit Address inputs and separate gated Enable inputs. Decoder “a” has an Enable gate with one active HIGH and one active LOW input. Decoder “b” has two active LOW Enable inputs. If the Enable functions are satisfied, one output of each decoder will be LOW as selected by the address inputs. The LS156 has open collector outputs for wired-OR (DOT-AND) decoding and function generator applications. The LS155 and LS156 are fabricated with the Schottky barrier diode process for high speed and are completely compatible with all Motorola TTL families.