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SN74F257NSR データシート(PDF) 2 Page - Texas Instruments |
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SN74F257NSR データシート(HTML) 2 Page - Texas Instruments |
2 / 5 page SN54F257, SN74F257 QUADRUPLE 2LINE TO 1LINE DATA SELECTORS/MULTIPLEXERS WITH 3STATE OUTPUTS SDFS065A − D2932, MARCH 1987 − REVISED OCTOBER 1993 2−2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 logic diagram (positive logic) 4Y 3Y 2Y 1Y A/B OE 4B 4A 3B 3A 2B 2A 1B 1A 4 2 3 7 5 6 9 11 10 12 14 13 1 15 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 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: SN54F257 40 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SN74F257 48 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range: SN54F257 −55 °C to 125°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SN74F257 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. |
同様の部品番号 - SN74F257NSR |
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同様の説明 - SN74F257NSR |
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