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74ACT16657DLR 数据表(PDF) 6 Page - Texas Instruments |
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74ACT16657DLR 数据表(HTML) 6 Page - Texas Instruments |
6 / 11 page 54ACT16657, 74ACT16657 16-BIT TRANSCEIVERS WITH PARITY GENERATORS/CHECKERS AND 3-STATE OUTPUTS SCAS164A – JANUARY 1991 – REVISED APRIL 1996 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 54ACT16657 74ACT16657 UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX MIN MAX UNIT IOH =50 µA 4.5 V 4.4 4.4 4.4 IOH = –50 µA 5.5 V 5.4 5.4 5.4 VOH IOH =24 mA 4.5 V 3.94 3.8 3.8 V IOH = –24 mA 5.5 V 4.94 4.8 4.8 IOH = –75 mA† 5.5 V 3.85 3.85 IOL =50 µA 4.5 V 0.1 0.1 0.1 IOL = 50 µA 5.5 V 0.1 0.1 0.1 VOL IOL =24 mA 4.5 V 0.36 0.44 0.44 V IOL = 24 mA 5.5 V 0.36 0.44 0.44 IOL = 75 mA† 5.5 V 1.65 1.65 II A or B ports VI = VCC or GND 5.5 V ±0.1 ±1 ±1 µA IOZ‡ Control inputs VO = VCC or GND 5.5 V ±0.5 ±5 ±5 µA ICC VI = VCC or GND, IO = 0 5.5 V 8 80 80 µA ∆ICC§ One input at 3.4 V, Other inputs at VCC or GND 5.5 V 0.9 1 1 mA Ci Control inputs VI = VCC or GND 5 V 4.5 pF Co ERR VO = VCC or GND 5 V 11 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. 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 54ACT16657 74ACT16657 UNIT PARAMETER (INPUT) (OUTPUT) MIN TYP MAX MIN MAX MIN MAX UNIT tPLH AorB BorA 4.1 7.3 9.6 4.1 10.7 4.1 10.7 ns tPHL A or B B or A 3.2 6.8 9.8 3.2 10.6 3.2 10.6 ns tPLH A PARITY 4 8.6 12.9 4 14.3 4 14.3 ns tPHL A PARITY 4.3 9 13.1 4.3 14.3 4.3 14.3 ns tPLH ODD/EVEN PARITY ERR 3.7 8.3 12.3 3.7 13.7 3.7 13.7 ns tPHL ODD/EVEN PARITY, ERR 4.1 8.8 12.8 4.1 14.1 4.1 14.1 ns tPLH B ERR 3.9 8.6 13 3.9 14.6 3.9 14.6 ns tPHL B ERR 4.3 9 13.3 4.3 14.7 4.3 14.7 ns tPLH PARITY ERR 3.8 8.4 12.2 3.8 13.8 3.8 13.8 ns tPHL PARITY ERR 4.1 8 12.8 4.1 14.2 4.1 14.2 ns tPZH OE A B PARITY or ERR 2.6 6.1 10.1 2.6 11.3 2.6 11.3 ns tPZL OE A, B, PARITY, or ERR 3.2 7.2 11.7 3.2 13 3.2 13 ns tPHZ OE A B PARITY or ERR 5.9 8.6 10.5 5.9 11.2 5.9 11.2 ns tPLZ OE A, B, PARITY, or ERR 5.3 8 9.8 5.3 10.5 5.3 10.5 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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