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74AC11590DWR Datasheet(PDF) 6 Page - Texas Instruments |
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74AC11590DWR Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 10 page  74AC11590 8BIT BINARY COUNTER WITH REGISTERED 3STATE OUTPUTS SCAS194 − D3988, MARCH 1992 − REVISED APRIL 1993 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001 2−6 timing requirements over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) TA = 25°C MIN MAX UNIT MIN MAX MIN MAX UNIT fclock Clock frequency, CCK or RCK 0 80 0 80 MHz tw Pulse duration CCK or RCK high or low 6.3 6.3 ns tw Pulse duration CCLR low 4.9 4.9 ns CCKEN low before CCK ↑ 3.7 3.7 tsu Setup time CCLR high before CCK ↑ 1.6 1.6 ns tsu Setup time CCK ↑ before RCK↑† 5.5 5.5 ns th Hold time CCKEN low after CCK ↑ 0.5 0.5 ns † This setup time ensures that the register will see stable data from the counter outputs. The clocks may be tied together, in which case the register will be one clock pulse behind the counter. switching characteristics over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1) PARAMETER FROM TO TA = 25°C MIN MAX UNIT PARAMETER FROM (INPUT) TO (OUTPUT) MIN TYP MAX MIN MAX UNIT fmax CCK or RCK 50 50 MHz tPLH CCK RCO 7 13.5 15.9 7 18.3 ns tPHL CCK RCO 9 16.9 19.5 9 22.1 ns tPLH CCLR RCO 6.2 12.4 14.8 6.2 17.1 ns tPLH RCK Q 7.3 13.7 16.2 7.3 18.7 ns tPHL RCK Q 7 13.6 15.9 7 17.9 ns tPZH OE Q 7.8 15.5 18.5 7.8 21.1 ns tPZL OE Q 8.5 18.2 21.4 8.5 24.5 ns tPHZ OE Q 6.3 10 11.9 6.3 13.2 ns tPLZ OE Q 6.8 10.8 12.8 6.8 14.1 ns tPLH CCKEN RCO 6 11.7 14 6 16.2 ns tPHL CCKEN RCO 6 11.6 13.7 6 15.4 ns switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER FROM TO TA = 25°C MIN MAX UNIT PARAMETER FROM (INPUT) TO (OUTPUT) MIN TYP MAX MIN MAX UNIT fmax CCK or RCK 80 80 MHz tPLH CCK RCO 3.6 7.8 10.2 3.6 11.7 ns tPHL CCK RCO 4.7 9.8 12.7 4.7 14.4 ns tPLH CCLR RCO 3.2 7.2 9.5 3.2 10.9 ns tPLH RCK Q 3.7 8 10.4 3.7 12 ns tPHL RCK Q 3.6 8.2 10.7 3.6 12.1 ns tPZH OE Q 3.8 8.9 11.9 3.8 13.6 ns tPZL OE Q 3.7 9.5 12.6 3.7 14.3 ns tPHZ OE Q 4.5 7.5 9.4 4.5 10.5 ns tPLZ OE Q 5.4 8.7 10.8 5.4 12 ns |
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