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SN74F657NT датащи(PDF) 4 Page - Texas Instruments |
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SN74F657NT датащи(HTML) 4 Page - Texas Instruments |
4 / 11 page SN74F657 OCTAL TRANSCEIVER WITH PARITY GENERATOR/CHECKER AND 3-STATE OUTPUTS SDFS027A – D3217, JANUARY 1989 – REVISED OCTOBER 1993 2–4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC – 0.5 V to 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage range, VI (excluding I/O ports) (see Note 1) – 1.2 V to 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input current range – 30 mA to 5 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage range applied to any output in the disabled or power-off state – 0.5 V to 5.5 V . . . . . . . . . . . . . . . . . . . . Voltage range applied to any output in the high state – 0.5 V to VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Current into any output in the low state: A1 – A8 48 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B1 – B8 128 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range 0 °C to 70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range – 65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: The input-voltage ratings may be exceeded provided the input-current ratings are observed. recommended operating conditions 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 IOH High level output current A1 – A8 –3 mA IOH High-level output current B1 – B8, PARITY, ERR –12 mA IOL Low level output current A1 – A8 24 mA IOL Low-level output current B1 – B8, PARITY, ERR 64 mA TA Operating free-air temperature 0 70 °C |
Аналогичный номер детали - SN74F657NT |
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Аналогичное описание - SN74F657NT |
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