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74ACT16646DL Datasheet(PDF) 7 Page - Texas Instruments |
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74ACT16646DL Datasheet(HTML) 7 Page - Texas Instruments |
7 / 12 page 54ACT16646, 74ACT16646 16-BIT BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS SCAS127B – MARCH 1990 – REVISED APRIL 1996 7 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 54ACT16646 74ACT16646 UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX MIN MAX UNIT IOH =50 mA 4.5 V 4.4 4.4 4.4 IOH = –50 mA 5.5 V 5.4 5.4 5.4 V IOH =24 mA 4.5 V 3.94 3.7 3.8 V VOH IOH = –24 mA 5.5 V 4.94 4.7 4.8 V IOH = –50 mA{ 5.5 V 3.85 IOH = –75 mA{ 5.5 V 3.85 IOL =50 mA 4.5 V 0.1 0.1 0.1 IOL = 50 mA 5.5 V 0.1 0.1 0.1 V IOL =24mA 4.5 V 0.36 0.5 0.44 V VOL IOL = 24 mA 5.5 V 0.36 0.5 0.44 V IOL = 50 mA{ 5.5 V 1.65 IOL = 75 mA{ 5.5 V 1.65 II Control inputs VI = VCC or GND 5.5 V ±0.1 ±1 ±1 mA IOZ A or B ports} VO = VCC or GND 5.5 V ±0.5 ±10 ±5 mA ICC VI = VCC or GND, IO = 0 5.5 V 8 160 80 mA DICCw One input at 3.4 V, Other inputs at GND or VCC 5.5 V 0.9 1 1 mA Ci Control inputs VI = VCC or GND 5 V 4 pF Cio A or B ports VO = VCC or GND 5 V 12 pF † Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms. ‡ For I/O ports, the parameter IOZ includes the input leakage current. § This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC. timing requirements over recommended ranges of supply voltage and operating free-air temperature, (unless otherwise noted) (see Figure 2) TA = 25°C 54ACT16646 74ACT16646 UNIT MIN MAX MIN MAX MIN MAX UNIT fclock Clock frequency 0 90 0 90 0 90 MHz tw Pulse duration, CLKAB or CLKBA high or low 5.5 5.5 5.5 ns t Set p time A before CLKAB ↑ or B before CLKBA↑ Data high 4 4 4 ns tsu Setup time, A before CLKAB ↑ or B before CLKBA↑ Data low 6 6 6 ns th Hold time, A before CLKAB ↑ or B before CLKBA↑ 1.5 1.5 1.5 ns 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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