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SN74ABT16821 Datasheet(PDF) 5 Page - Texas Instruments |
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SN74ABT16821 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 12 page SN54ABT16821, SN74ABT16821 20-BIT BUS-INTERFACE FLIP-FLOPS WITH 3-STATE OUTPUTS SCBS216B – JUNE 1992 – REVISED JANUARY 1997 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 1) VCC = 5 V, TA = 25°C SN54ABT16821 SN74ABT16821 UNIT MIN MAX MIN MAX MIN MAX fclock Clock frequency 0 150 0 150 0 150 MHz tw Pulse duration, CLK high or low 3.3 3.3 3.3 ns tsu Setup time, data before CLK ↑ 1.8 1.8 1.8 ns th Hold time, data after CLK ↑ 1.3 1.3 1.3 ns switching characteristics over recommended ranges of supply voltage and operating free-air temperature, CL = 50 pF (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 5 V, TA = 25°C SN54ABT16821 SN74ABT16821 UNIT (INPUT) (OUTPUT) MIN TYP MAX MIN MAX MIN MAX fmax 150 150 150 MHz tPLH CLK Q 1.3 3.7 5.1 1.3 6.7 1.3 6.1 ns tPHL CLK Q 1.6 3.9 5.1 1.6 5.8 1.6 5.4 ns tPZH OE Q 1.1 3.2 4.7 1.1 5.8 1.1 5.7 ns tPZL OE Q 1.6 3.8 5 1.6 5.7 1.6 5.6 ns tPHZ OE Q 2 4.5 5.7 2 6.6 2 6.5 ns tPLZ OE Q 1.8 4.1 5.8 1.8 8.4 1.8 7.1 ns 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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