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UT54ACTS164 bảng dữ liệu(PDF) 1 Page - Aeroflex Circuit Technology |
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UT54ACTS164 bảng dữ liệu(HTML) 1 Page - Aeroflex Circuit Technology |
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1 / 10 page ![]() 1 Standard Products UT54ACS164/UT54ACTS164 8-Bit Shift Registers Datasheet November 2010 www.aeroflex.com/logic FEATURES AND-gated (enable/disable) serial inputs Fully buffered clock and serial inputs Direct clear 1.2μ CMOS - Latchup immune High speed Low power consumption Single 5 volt supply Available QML Q or V processes Flexible package - 14-pin DIP - 14-lead flatpack UT54ACS164 - SMD 5962-96556 UT54ACTS164 - SMD 5962-96557 DESCRIPTION The UT54ACS164 and the UT54ACTS164 are 8-bit shift reg- isters which feature AND-gated serial inputs and an asynchro- nous clear. The gated serial inputs (A and B) permit complete control over incoming data. A low at either input inhibits entry of new data and resets the first flip-flop to the low level at the next clock pulse. A high-level at both serial inputs sets the first flip-flop to the high level at the next clock pulse. Data at the serial inputs may be changed while the clock is high or low, providing the minimum setup time requirements are met. Clock- ing occurs on the low-to-high-level transition of the clock input. The devices are characterized over full military temperature range of -55 °C to +125°C. FUNCTION TABLE Notes: 1. QA0, QB0, QH0 = the level of QA, QB or QH, respectively, before the indicated steady-state input conditions were established. 2. QAn and QGn = the level of QA or QG before the most recent ↑ transition of the clock; indicates a one-bit shift. PINOUTS 14-Pin DIP Top View 14-Lead Flatpack Top View LOGIC SYMBOL INPUTS OUTPUTS CLR CLK A B QA QB ... QH L X X X L L L H L X X QA0 QB0 QH0 H ↑ H H H QAn QGn H ↑ L X L QAn QGn H ↑ X L L QAn QGn 1 2 3 4 5 7 6 14 13 12 11 10 8 9 A B QA QB QC QD VSS VDD QH QG QF QE CLR CLK 1 2 3 4 5 7 6 14 13 12 11 10 8 9 VDD QH QG QF QE CLR CLK A B QA QB QC QD VSS (9) CLR (8) CLK R 1D Note: 1. Logic symbol in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. (1) A (2) B (3) QA SRG8 & (4) QB (5) QC (6) QD (10) QE (11) QF (12) QG (13) QH C1/ |
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