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74LV595A Arkusz danych(PDF) 7 Page - Texas Instruments |
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74LV595A Arkusz danych(HTML) 7 Page - Texas Instruments |
7 / 22 page SN54LV595A, SN74LV595A 8BIT SHIFT REGISTERS WITH 3STATE OUTPUT REGISTERS SCLS414N − APRIL 1998 − REVISED APRIL 2005 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC SN54LV595A SN74LV595A UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN TYP MAX UNIT IOH = −50 µA 2 V to 5.5 V VCC−0.1 VCC−0.1 IOH = −2 mA 2.3 V 2 2 VOH QH′ IOH = −6 mA 3 V 2.48 2.48 V VOH QA−QH IOH = −8 mA 3 V 2.48 2.48 V QH′ IOH = −12 mA 4.5 V 3.8 3.8 QA−QH IOH = −16 mA 4.5 V 3.8 3.8 IOL = 50 µA 2 V to 5.5 V 0.1 0.1 IOL = 2 mA 2.3 V 0.4 0.4 VOL QH′ IOL = 6 mA 3 V 0.44 0.44 V VOL QA−QH IOL = 8 mA 3 V 0.44 0.44 V QH′ IOL = 12 mA 4.5 V 0.55 0.55 QA−QH IOL = 16 mA 4.5 V 0.55 0.55 II VI = 5.5 V or GND 0 to 5.5 V ±1 ±1 µA IOZ VO = VCC or GND, QA−QH 5.5 V ±5 ±5 µA ICC VI = VCC or GND, IO = 0 5.5 V 20 20 µA Ioff VI or VO = 0 to 5.5 V 0 5 5 µA Ci VI = VCC or GND 3.3 V 3.5 3.5 pF timing requirements over recommended operating free-air temperature range, VCC = 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 1) TA = 25°C SN54LV595A SN74LV595A UNIT MIN MAX MIN MAX MIN MAX UNIT SRCLK high or low 7 7.5 7.5 tw Pulse duration RCLK high or low 7 7.5 7.5 ns tw Pulse duration SRCLR low 6 6.5 6.5 ns SER before SRCLK ↑ 5.5 5.5 5.5 tsu Setup time SRCLK ↑ before RCLK↑† 8 9 9 ns tsu Setup time SRCLR low before RCLK ↑ 8.5 9.5 9.5 ns SRCLR high (inactive) before SRCLK ↑ 4 4 4 th Hold time SER after SRCLK ↑ 1.5 1.5 1.5 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. |
Podobny numer części - 74LV595A |
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Podobny opis - 74LV595A |
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