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SNJ54HC646FK Datasheet(PDF) 6 Page - Texas Instruments |
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SNJ54HC646FK Datasheet(HTML) 6 Page - Texas Instruments |
6 / 16 page SN54HC646, SN74HC646 OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS SCLS150C – DECEMBER 1982 – REVISED MARCH 2003 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended operating free-air temperature range (unless otherwise noted) VCC TA = 25°C SN54HC646 SN74HC646 UNIT VCC MIN MAX MIN MAX MIN MAX UNIT 2 V 6 4.3 5.5 fclock Clock frequency 4.5 V 31 22 27 MHz 6 V 36 25 31 2 V 80 115 95 tw Pulse duration, CLKBA or CLKAB high or low 4.5 V 16 23 19 ns 6 V 14 20 16 ↑ ↑ 2 V 100 150 125 tsu Setup time, A before CLKAB ↑ or B before CLKBA↑ 4.5 V 20 30 25 ns 6 V 17 26 21 ↑ ↑ 2 V 5 5 5 th Hold time, A after CLKAB ↑ or B after CLKBA↑ 4.5 V 5 5 5 ns 6 V 5 5 5 PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. |
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