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SN74F157AN3 数据表(PDF) 2 Page - Texas Instruments |
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SN74F157AN3 数据表(HTML) 2 Page - Texas Instruments |
2 / 5 page SN54F157A, SN74F157A QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS SDFS053A – MARCH 1987 – REVISED OCTOBER 1993 2–2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 logic symbol† logic diagram (positive logic) G MUX 2 1A 1 3 1B EN 15 G1 1 1Y 4 5 2A 6 2B 2Y 7 11 3A 10 3B 3Y 9 14 4A 13 4B 4Y 12 A /B 4Y 3Y 2Y 1Y 12 9 7 4 A /B G 4B 4A 3B 3A 2B 2A 1B 1A 1 15 13 14 10 11 6 5 3 2 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. 1 Pin numbers shown are for the D, J, and N packages. 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 (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 high state – 0.5 V to VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Current into any output in the low state 40 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range: SN54F157A – 55 °C to 125°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SN74F157A 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 rating may be exceeded provided that the input current rating is observed. recommended operating conditions SN54F157A SN74F157A UNIT MIN NOM MAX MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5.5 4.5 5 5.5 V VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.8 0.8 V IIK Input clamp current –18 –18 mA IOH High-level output current –1 –1 mA IOL Low-level output current 20 20 mA TA Operating free-air temperature –55 125 0 70 °C |
类似零件编号 - SN74F157AN3 |
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类似说明 - SN74F157AN3 |
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