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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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SN74ALS191A 데이터시트(PDF) 5 Page - Texas Instruments |
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SN74ALS191A 데이터시트(HTML) 5 Page - Texas Instruments |
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5 / 8 page  SN54ALS191A, SN74ALS191A SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS SDAS210C – DECEMBER 1982 – REVISED JULY 1996 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage, VI 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range, TA: SN54ALS191A – 55 °C to 125°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . SN74ALS191A 0 °C to 70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg – 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. recommended operating conditions SN54ALS191A SN74ALS191A 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 0.7 0.8 V IOH High-level output current – 0.4 – 0.4 mA IOL Low-level output current 4 8 mA fclock Clock frequency 0 20 0 30 MHz t Pulse duration CLK high or low 20 16.5 ns tw Pulse duration LOAD low 25 20 ns Data before LOAD ↑ 25 20 t Setup time CTEN before CLK ↑ 45 20 ns tsu Setup time D/U before CLK ↑ 30 20 ns LOAD inactive before CLK ↑ 20 20 Data after LOAD ↑ 5 5 th Hold time CTEN after CLK ↑ 0 0 ns D/U after CLK ↑ 0 0 TA Operating free-air temperature –55 125 0 70 °C |
유사한 부품 번호 - SN74ALS191A |
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유사한 설명 - SN74ALS191A |
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