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SN74AHC595PWRG4 数据表(PDF) 7 Page - Texas Instruments |
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SN74AHC595PWRG4 数据表(HTML) 7 Page - Texas Instruments |
7 / 19 page SN54AHC595, SN74AHC595 8BIT SHIFT REGISTERS WITH 3STATE OUTPUT REGISTERS SCLS373I − MAY 1997 − REVISED JUNE 2004 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing requirements over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) TA = 25°C SN54AHC595 SN74AHC595 UNIT MIN MAX MIN MAX MIN MAX UNIT SRCLK high or low 5 5 5 tw Pulse duration RCLK high or low 5 5 5 ns tw Pulse duration SRCLR low 5 5 5 ns SER before SRCLK ↑ 3 3 3 tsu Setup time SRCLK ↑ before RCLK↑† 5 5 5 ns tsu Setup time SRCLR low before RCLK ↑ 5 5 5 ns SRCLR high (inactive) before SRCLK ↑ 2.5 2.5 2.5 th Hold time SER after SRCLK ↑ 2 2 2 ns † This setup time allows the storage register to receive stable data from the shift register. The clocks can be tied together, in which case the shift register is one clock pulse ahead of the storage register. 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 LOAD TA = 25°C SN54AHC595 SN74AHC595 UNIT PARAMETER FROM (INPUT) TO (OUTPUT) LOAD CAPACITANCE MIN TYP MAX MIN MAX MIN MAX UNIT fmax CL = 15 pF 80* 120* 70* 70 MHz fmax CL = 50 pF 55 105 50 50 MHz tPLH RCLK QA−QH CL = 15 pF 6* 11.9* 1* 13.5* 1 13.5 ns tPHL RCLK QA−QH CL = 15 pF 6* 11.9* 1* 13.5* 1 13.5 ns tPLH SRCLK QH CL = 15 pF 6.6* 13* 1* 15* 1 15 ns tPHL SRCLK QH′ CL = 15 pF 6.6* 13* 1* 15* 1 15 ns tPHL SRCLR QH′ CL = 15 pF 6.2* 12.8* 1* 13.7* 1 13.7 ns tPZH OE QA−QH CL = 15 pF 6* 11.5* 1* 13.5* 1 13.5 ns tPZL OE QA−QH CL = 15 pF 7.8* 11.5* 1* 13.5* 1 13.5 ns tPLH RCLK QA−QH CL = 50 pF 7.9 15.4 1 17 1 17 ns tPHL RCLK QA−QH CL = 50 pF 7.9 15.4 1 17 1 17 ns tPLH SRCLK QH CL = 50 pF 9.2 16.5 1 18.5 1 18.5 ns tPHL SRCLK QH′ CL = 50 pF 9.2 16.5 1 18.5 1 18.5 ns tPHL SRCLR QH′ CL = 50 pF 9 16.3 1 17.2 1 17.2 ns tPZH OE QA−QH CL = 50 pF 7.8 15 1 17 1 17 ns tPZL OE QA−QH CL = 50 pF 9.6 15 1 17 1 17 ns tPHZ OE QA−QH CL = 50 pF 8.1 15.7 1 16.2 1 16.2 ns tPLZ OE QA−QH CL = 50 pF 9.3 15.7 1 16.2 1 16.2 ns * On products compliant to MIL-PRF-38535, this parameter is not production tested. 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. |
类似零件编号 - SN74AHC595PWRG4 |
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类似说明 - SN74AHC595PWRG4 |
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