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SN74AHCT594NSR Datasheet(PDF) 6 Page - Texas Instruments |
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SN74AHCT594NSR Datasheet(HTML) 6 Page - Texas Instruments |
6 / 19 page SN54AHCT594, SN74AHCT594 8BIT SHIFT REGISTERS WITH OUTPUT REGISTERS SCLS417H − JUNE 1998 − REVISED SEPTEMBER 2003 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC TA = 25°C SN54AHCT594 SN74AHCT594 UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX MIN MAX UNIT VOH IOH = −50 mA 4.5 V 4.4 4.5 4.4 4.4 V VOH IOH = −8 mA 4.5 V 3.94 3.8 3.8 V VOL IOL = 50 mA 4.5 V 0.1 0.1 0.1 V VOL IOL = 8 mA 4.5 V 0.36 0.44 0.44 V II VI = 5.5 V or GND 0 V to 5.5 V ±0.1 ±1* ±1 mA ICC VI = VCC or GND, IO = 0 5.5 V 2 20 20 mA ∆ICC† One input at 3.4 V, Other inputs at VCC or GND 5.5 V 2 2.2 2.2 mA Ci VI = VCC or GND 5 V 2 10 10 pF * On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V. † This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC. timing requirements over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) TA = 25°C SN54AHCT594 SN74AHCT594 UNIT MIN MAX MIN MAX MIN MAX UNIT tw Pulse duration RCLK or SRCLK high or low 5 5.5 5.5 ns tw Pulse duration RCLR or SRCLR low 5.2 5.5 5.5 ns SER before SRCLK ↑ 3 3 3 SRCLK ↑ before RCLK↑‡ 5 5 5 tsu Setup time SRCLR low before RCLK ↑ 5 5 5 ns tsu Setup time SRCLR high (inactive) before SRCLK ↑ 2.9 3.3 3.3 ns RCLR high (inactive) before RCLK ↑ 3.4 3.8 3.8 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. 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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