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74ACT11657DWR Datasheet(PDF) 5 Page - Texas Instruments |
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74ACT11657DWR Datasheet(HTML) 5 Page - Texas Instruments |
5 / 8 page 74ACT11657 OCTAL TRANSCEIVER WITH PARITY GENERATOR/CHECKER AND 3STATE OUTPUTS SCAS232 − AUGUST 1992 − REVISED APRIL 1993 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001 2−5 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC TA = 25°C MIN MAX UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX UNIT IOH = − 50 A 4.5 V 4.4 4.4 IOH = − 50 µA 5.5 V 5.4 5.4 VOH IOH = − 24 mA 4.5 V 3.94 3.8 V VOH IOH = − 24 mA 5.5 V 4.94 4.8 V IOH = − 75 mA† 5.5 V 3.85 IOL = 50 A 4.5 V 0.1 0.1 IOL = 50 µA 5.5 V 0.1 0.1 VOL IOL = 24 mA 4.5 V 0.36 0.44 V VOL IOL = 24 mA 5.5 V 0.36 0.44 V IOL = 75 mA† 5.5 V 1.65 II A or B ports VI = VCC or GND 5.5 V ±0.1 ±1 µA IOZ‡ Control Inputs VO = VCC or GND 5.5 V ±0.5 ±5 µA ICC VI = VCC or GND, IO = 0 5.5 V 8 80 µA ∆ICC§ One input at 3.4 V, Other inputs at VCC or GND 5.5 V 0.9 1 mA Ci Control inputs VI = VCC or GND 5 V 4.5 pF Co PARITY/ERR VO = VCC or GND 5 V 10 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 MIN MAX UNIT PARAMETER FROM (INPUT) TO (OUTPUT) MIN TYP MAX MIN MAX UNIT tPLH A or B B or A 2.9 6.7 8.4 2.9 9.4 ns tPHL A or B B or A 2.2 7 8.4 2.2 9.4 ns tPLH A PARITY 3.4 10.4 12.7 3.4 14.4 ns tPHL A PARITY 3.9 10.9 13.2 3.9 15 ns tPLH ODD/EVEN PARITY, ERR 2.5 7.9 9.4 2.5 10.7 ns tPHL ODD/EVEN PARITY, ERR 3 8.5 10 3 11.3 ns tPLH B ERR 4.6 18.1 20.6 4.6 23.6 ns tPHL B ERR 4.9 18.5 21.8 4.9 24.6 ns tPLH PARITY ERR 4 10.9 12.8 4 14.6 ns tPHL PARITY ERR 3.9 11 12.9 3.9 14.7 ns tPZH OE A, B, PARITY, or ERR 2.6 9.1 10.8 2.6 12.1 ns tPZL OE A, B, PARITY, or ERR 3.1 10.6 12.3 3.1 13.8 ns tPHZ OE A, B, PARITY, or ERR 4.5 9.1 10.8 4.5 12.1 ns tPLZ OE A, B, PARITY, or ERR 4.5 8.7 10.5 4.5 11.6 ns |
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