Dual 2-line To 4-line Decoders / Demultiplexers

These Schottky-clamped TTL MSI circuits SN74S139A are designed to be used 86f in high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders CAN be used to minimize the effects of system decoding. When employed with high speed Memories utilizing a fast-enable circuit, the delay times of these decoders and the enable time of the memory are usually less than the typical access time of the memory. This means that the effective system delay introduced by the Schottky-clamped system decoder is negligible.
The circuit comprises two individual two-line to four-line decoders in a single package. The active-low enable input CAN be used as a data line in demultiplexing applications.
All of these decoders/demultiplexers feature fully buffered inputs, each of which represents only one normalized load to its driving circuit. All inputs are clamped with high-performance Schottky Diodes to suppress line-ringing and to simplify system design. The SN54LS139A and SN54S139 are characterized for operation range of -55C to 125C. The SN74LS139A and SN74S139A are characterized for operation from 0C to 70C.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN74S139ADG4 Texas Instruments S SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16, GREEN, PLASTIC, MS-012AC, SOIC-16
SN74S139AN Texas Instruments Dual 2-line to 4-line decoders / demultiplexers 16-PDIP 0 to 70
SN74S139AD Texas Instruments Dual 2-line to 4-line decoders / demultiplexers 16-SOIC 0 to 70
SN74S139ANSRG4 Texas Instruments IC S SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16, GREEN, PLASTIC, SOP-16, Decoder/Driver
SN74S139AN3 Texas Instruments Dual 2-line to 4-line decoders / demultiplexers 16-PDIP 0 to 70
SN74S139ADE4 Texas Instruments S SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16, GREEN, SO-16
SN74S139ANE4 Texas Instruments S SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDIP16, ROHS COMPLIANT, PLASTIC, DIP-16
SN74S139A 's PackagesSN74S139A 's pdf datasheet
SN74S139AD SOIC
SN74S139ADE4 SOIC
SN74S139ADG4 SOIC
SN74S139AN3 PDIP
SN74S139ANE4 PDIP
SN74S139ANSR SO
SN74S139ANSRE4 SO
SN74S139ANSRG4 SO




SN74S139A Pinout, Pinouts
SN74S139A pinout,Pin out
This is one package pinout of SN74S139A,If you need more pinouts please download SN74S139A's pdf datasheet.

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SN74S139A Application Notes SN74S139A RoHS SN74S139A Circuits SN74S139A footprint
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