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SN74ALS164ADR датащи(PDF) 1 Page - Texas Instruments |
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SN74ALS164ADR датащи(HTML) 1 Page - Texas Instruments |
1 / 14 page SN74ALS164A 8BIT PARALLELOUT SERIAL SHIFT REGISTER SDAS159D − APRIL 1982 − REVISED DECEMBER 1994 Copyright 1994, Texas Instruments Incorporated 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 • AND-Gated (Enable/Disable) Serial Inputs • Fully Buffered Clock and Serial Inputs • Direct Clear • Package Options Include Plastic Small-Outline (D) Packages and Standard Plastic (N) 300-mil DIPs description This 8-bit parallel-out serial shift register features AND-gated serial (A and B) inputs and an asynchronous clear (CLR) input. The gated serial inputs permit control over incoming data because a low at either input inhibits entry of the new data and resets the first flip-flop to the low level at the next clock pulse. A high-level input enables the other input, which determines the state of the first flip-flop. Data at the serial inputs can be changed while the clock is high or low, provided that the minimum setup-time requirements are met. Clocking occurs on the low-to-high-level transition of the clock (CLK) input. All inputs are diode clamped to minimize transmission-line effects. The SN74ALS164A is characterized for operation from 0 °C to 70°C. FUNCTION TABLE INPUTS OUTPUTS† CLR CLK A B QA QB ...QH L X X X L L L H LX X QA0 QB0 QH0 H ↑ HH H QAn QGn H ↑ LX L QAn QGn H ↑ X L L QAn QGn † QA0, QB0, QH0 = the level of QA, QB, or QH, respectively, before the indicated steady-state input conditions were established. H = high level (steady state), L = low level (steady state) X = irrelevant (any input, including transitions) ↑ = transition from low to high level QAn, QGn = the level of QA or QG before the most recent ↑ transition of the clock; indicates a 1-bit shift. D OR N PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 14 13 12 11 10 9 8 A B QA QB QC QD GND VCC QH QG QF QE CLR CLK 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. |
Аналогичный номер детали - SN74ALS164ADR |
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Аналогичное описание - SN74ALS164ADR |
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