Datenblatt-Suchmaschine für elektronische Bauteile |
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SN74ABT646APWR Datenblatt(PDF) 8 Page - Texas Instruments |
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SN74ABT646APWR Datenblatt(HTML) 8 Page - Texas Instruments |
8 / 21 page SN54ABT646A, SN74ABT646A OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3STATE OUTPUTS SCBS069H − JULY 1991 − REVISED MAY 2004 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 switching characteristics over recommended ranges of supply voltage and operating free-air temperature, CL = 50 pF (unless otherwise noted) (see Figure 2) SN74ABT646A PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 5 V, TA = 25°C MIN MAX UNIT (INPUT) (OUTPUT) MIN TYP MAX MIN MAX fmax 125 125 MHz tPLH CLKBA or CLKAB A or B 2.2 4 5.1 2.2 5.6 ns tPHL CLKBA or CLKAB A or B 1.7 4 5.1 1.7 5.6 ns tPLH A or B B or A 1.5 3 4.3 1.5 4.8 ns tPHL A or B B or A 1.5 3.3 4.6 1.5 5.4 ns tPLH SAB or SBA† B or A 1.5 4 5.1 1.5 6.5 ns tPHL SAB or SBA† B or A 1.5 3.6 4.9 1.5 5.9 ns tPZH OE A or B 1.5 4.3 5.3 1.5 6.3 ns tPZL OE A or B 3 5.8 7.4 3 8.8 ns tPHZ OE A or B 1.5 3.5 4.5 1.5 5 ns tPLZ OE A or B 1.5 3 4 1.5 4.5 ns tPZH DIR A or B 1.5 4.5 5.7 1.5 6.7 ns tPZL DIR A or B 2.5 6.5 9 2.5 9.5 ns tPHZ DIR A or B 1.5 3.8 5 1.5 5.7 ns tPLZ DIR A or B 1.5 3.8 4.7 1.5 6 ns † These parameters are measured with the internal output state of the storage register opposite that of the bus input. |
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