Texas Instruments CD74HC139

The ’HC139 and ’HCT139 devices contain two independent binary to one of four decoders each with a single active low...
Datasheet

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Documents

Download datasheets and manufacturer documentation for Texas Instruments CD74HC139.

Texas Instruments
Datasheet13 pages16 years ago

Engineering Resources

View Evaluation kits and Reference designs for Texas Instruments CD74HC139.

Descriptions

Descriptions of Texas Instruments CD74HC139 provided by its distributors.

The ’HC139 and ’HCT139 devices contain two independent binary to one of four decoders each with a single active low enable input (1E\ or 2E\). Data on the select inputs (1A0 and 1A1 or 2A0 and 2A1) cause one of the four normally high outputs to go low. If the enable input is high all four outputs remain high. For demultiplexer operation the enable input is the data input. The enable input also functions as a chip select when these devices are cascaded. This device is functionally the same as the CD4556B and is pin compatible with it. The outputs of these devices can drive 10 low power Schottky TTL equivalent loads. The HCT logic family is functionally as well as pin equivalent to the LS logic family.

Manufacturer Aliases

Texas Instruments has several brands around the world that distributors may use as alternate names. Texas Instruments may also be known as the following names:

  • TI
  • TEXAS
  • TEXAS INST
  • TEXAS INSTR
  • TEXAS INSTRUMENT
  • TEXAS INS
  • TEXAS INSTRUMENTS INC
  • TEXAS INSTRU
  • TEXAS INSTRUMEN
  • TI/NS
  • TEX
  • Texas Instruments (TI)
  • TEXASIN
  • TEXAS INSTRUMENTS INCORPORATED
  • TEXINS
  • TEXAS INTRUMENTS
  • TEAXS
  • TEXASI
  • TEXAS INSTRUM
  • TI Texas Instruments
  • TEXAS USD
  • TEXAS INSRUMENTS
  • TEXAS INSRUMENT
  • TEXAS INSTUMENTS
  • TEXAS INTRUMENT
  • Texas Instr.
  • Texas Instruments Inc.

Documents

Download datasheets and manufacturer documentation for Texas Instruments CD74HC139.

Texas Instruments
Datasheet13 pages16 years ago

Compliance

Environmental Classification
RoHSNon-Compliant
Compliance Statements
Conflict Mineral Statement2 pages11 years ago
Reach Statement7 pages10 years ago