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SN74ABT2245N 데이터시트(PDF) 4 Page - Texas Instruments |
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SN74ABT2245N 데이터시트(HTML) 4 Page - Texas Instruments |
4 / 8 page SN54ABT2245, SN74ABT2245 OCTAL TRANSCEIVERS AND LINE/MOS DRIVERS WITH 3-STATE OUTPUTS SCBS234D – SEPTEMBER 1992 – REVISED MAY 1997 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions (see Note 3) SN54ABT2245 SN74ABT2245 UNIT MIN MAX MIN MAX UNIT VCC Supply voltage 4.5 5.5 4.5 5.5 V VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.8 0.8 V VI Input voltage 0 VCC 0 VCC V IOH High level output current A port –24 –32 mA IOH High-level output current B port –12 –12 mA IOL Low level output current A port 48 64 mA IOL Low-level output current B port 12 12 mA ∆t/∆v Input transition rise or fall rate Outputs enabled 5 5 ns/V ∆t/∆VCC Power-up ramp rate 200 200 µs/V TA Operating free-air temperature –55 125 –40 85 °C NOTE 3: Unused pins (input or I/O) must be held high or low to prevent them from floating. |
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