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SN74ALS874BNSR Scheda tecnica(PDF) 7 Page - Texas Instruments |
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SN74ALS874BNSR Scheda tecnica(HTML) 7 Page - Texas Instruments |
7 / 20 page SN54ALS874B, SN74ALS874B, SN74ALS876A SN74AS874, SN74AS876 DUAL 4-BIT D-TYPE EDGE-TRIGGERED FLIP-FLOPS SDAS061C – APRIL 1982 – REVISED JANUARY 1995 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = MIN to MAX† UNIT SN74AS874 MIN MAX fmax 125 MHz tPLH CLK An Q 3 8.5 ns tPHL CLK Any Q 4 10.5 ns tPHL CLR Any Q 4 9.5 ns tPZH OE An Q 2 7 ns tPZL OE Any Q 3 10.5 ns tPHZ OE Any Q 2 6 ns tPLZ OE Any Q 2 7.5 ns † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = MIN to MAX† UNIT SN74AS876 MIN MAX fmax 80 MHz tPLH CLK An Q 3 8.5 ns tPHL CLK Any Q 4 10.5 ns tPHL PRE Any Q 4 9.5 ns tPZH OE An Q 2 7 ns tPZL OE Any Q 3 11 ns tPHZ OE Any Q 2 7 ns tPLZ OE Any Q 2 7 ns † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. |
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