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SN74F657DW Datasheet(PDF) 5 Page - Texas Instruments |
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SN74F657DW Datasheet(HTML) 5 Page - Texas Instruments |
5 / 11 page SN74F657 OCTAL TRANSCEIVER WITH PARITY GENERATOR/CHECKER AND 3-STATE OUTPUTS SDFS027A – D3217, JANUARY 1989 – REVISED OCTOBER 1993 2–5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = – 18 mA – 1.2 V Any output VCC = 4.5 V, IOH = – 3 mA 2.4 3.3 VOH B1 – B8, PARITY, ERR VCC = 4.5 V, IOH = – 15 mA 2 3.1 V Any output VCC = 4.75 V, IOH = – 1 mA to – 3 mA 2.7 V A1 – A8 V4 5 V IOL = 24 mA 0.35 0.5 V VOL B1 – B8, PARITY, ERR VCC = 4.5 V IOL = 64 mA 0.42 0.55 V T/R VCC = 0, VI = 7 V, OE = 4.5 V 0.1 OE VCC = 0, VI = 7 V, T/R = 4.5 V 0.1 II ODD/EVEN VCC = 0, VI = 7 V 0.1 mA A1 – A8 VCC =5 5V VI =7V 2 B1 – B8 VCC = 5.5 V, VI = 7 V 1 ‡ A, B, PARITY 70 IIH‡ T/R, OE VCC = 5.5 V, VI = 2.7 V 40 µA IH ODD/EVEN 20 ‡ A, B, PARITY –70 IIL‡ T/R, OE VCC = 5.5 V, VI = 0.5 V –40 µA IL ODD/EVEN –20 A1 – A8 VCC =5 5V VO =0 –60 – 150 mA IOS§ B1 – B8 VCC = 5.5 V, VO = 0 – 100 – 225 mA IOZH ERR VCC = 5.5 V, VI = 2.7 V 50 µA IOZL ERR VCC = 5.5 V, VI = 0.5 V –50 µA ICCH VCC = 5.5 V 90 125 mA ICCL VCC = 5.5 V 106 150 mA ICCZ VCC = 5.5 V 98 145 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ For I/O ports, the parameters IIH and IIL include the off-state output current. § Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second. |
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