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SN74BCT25642DW Datasheet(PDF) 3 Page - Texas Instruments |
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SN74BCT25642DW Datasheet(HTML) 3 Page - Texas Instruments |
3 / 10 page SN74BCT25642 25 Ω OCTAL BUS TRANSCEIVER SCBS047C − DECEMBER 1989 − REVISED NOVEMBER 1993 2−3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 recommended operating conditions (see Note 2) MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5.5 V VIH High-level input voltage 2 V VIL Low-level input voltage 0.8 V VOH High-level output voltage A port 5.5 V IIK Input clamp current −18 mA IOH High-level output current B port −3 mA IOL Low-level output current A port 188 mA IOL Low-level output current B port 24 mA TA Operating free-air temperature 0 70 °C NOTE 2: Unused or floating pins (input or I/O) must be held high or low. 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 VOH Any B VCC = 4.75 V, IOH = − 1 mA 2.7 V VOH Any B VCC = 4.5 V, IOH = − 3 mA 2.4 3.3 V Any A VCC = 4.5 V IOL = 94 mA 0.42 0.55 VOL Any A VCC = 4.5 V IOL = 188 mA 0.7 V VOL Any B VCC = 4.5 V, IOL = 24 mA 0.35 0.5 V IOH Any A VCC = 4.5 V, VOH = 5.5 V 0.1 mA II A and B VCC = 5.5 V, VI = 5.5 V 0.25 mA II DIR and OE VCC = 5.5 V, VI = 5.5 V 0.1 mA IIH‡ A and B VCC = 5.5 V, VI = 2.7 V 70 A IIH‡ DIR and OE VCC = 5.5 V, VI = 2.7 V 20 µA IIL‡ A and B VCC = 5.5 V, VI = 0.5 V − 0.6 mA IIL‡ DIR and OE VCC = 5.5 V, VI = 0.5 V − 0.6 mA IOS§ Any B VCC = 5.5 V, VO = 0 −60 −150 mA ICCL A to B VCC = 5.5 V 40 64 mA ICCL B to A VCC = 5.5 V 78 125 mA ICCH A to B VCC = 5.5 V 25 40 mA ICCH B to A VCC = 5.5 V 34 55 mA ICCZ A to B VCC = 5.5 V 7.6 13 mA Ci Control inputs VCC = 5 V, VO = 2.5 V or 0.5 V 8 pF Cio A port VCC = 5 V, VI = 2.5 V or 0.5 V 15 pF Cio B port VCC = 5 V, VI = 2.5 V or 0.5 V 8 pF † 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 10 ms. |
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