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54LS156 - DUAL 1-OF-4 DECODER/DEMULTIPLEXER

Download the 54LS156 datasheet PDF. This datasheet also covers the 54LS155 variant, as both devices belong to the same dual 1-of-4 decoder/demultiplexer family and are provided as variant models within a single manufacturer datasheet.

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Note: The manufacturer provides a single datasheet file (54LS155-Motorola.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
54LS156 Dual 2-Line To 4-Line Decoders/Demultiplexers Texas Instruments
54LS151 Data Selector/Multiplexer National Semiconductor
54LS153 Dual 4-Line to 1-Line Data Selectors/Multiplexers National Semiconductor
54LS155A Dual 2-Line To 4-Line Decoders/Demultiplexers Texas Instruments
54LS157 Quad 2-Line to 1-Line Data Selectors/Multiplexers National Semiconductor

Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
54LS155 DUAL 1-OF-4 DECODER/DEMULTIPLEXER
54LS158 QUAD 2-INPUT MULTIPLEXER
54LS122 RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
54LS123 RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
54LS138 1-OF-8 DECODER/DEMULTIPLEXER

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.