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SN74ALS156 Scheda tecnica(PDF) 1 Page - Texas Instruments |
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SN74ALS156 Scheda tecnica(HTML) 1 Page - Texas Instruments |
1 / 14 page SN74ALS156 DECODER/DEMULTIPLEXER WITH OPENCOLLECTOR OUTPUTS SDAS099C − JUNE 1986 − REVISED MAY 1996 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 D Applications: − Dual 2-Line to 4-Line Decoder − Dual 1-Line to 4-Line Demultiplexer − 3-Line to 8-Line Decoder − 1-Line to 8-Line Demultiplexer D Individual Strobes Simplify Cascading for Decoding or Demultiplexing Larger Words D Package Options Include Plastic Small-Outline (D) Packages and Standard Plastic (N) 300-mil DIPs description One of the main applications of the SN74ALS156 is as a dual 1-line to 4-line decoder /demultiplexer with individual strobes (G) and common binary-address inputs in a single 16-pin package. When both sections are enabled, the common binary-address inputs sequentially select and route associated input data to the appropriate output of each section. The individual strobes permit enabling or disabling each of the 4-bit sections, as desired. Data applied to input 1C is inverted at its outputs and data applied at input 2C is not inverted through its outputs. The inverter following the 1C data input permits use of the SN74ALS156 as a 3-line to 8-line demultiplexer without external gating. All inputs are clamped with high-performance Schottky diodes to suppress line ringing and simplify system design. The SN74ALS156 is characterized for operation from 0 °C to 70°C. Copyright 1996, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. D OR N PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1C 1G B 1Y3 1Y2 1Y1 1Y0 GND VCC 2C 2G A 2Y3 2Y2 2Y1 2Y0 |
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