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SN74HC240 数据表(PDF) 3 Page - Texas Instruments |
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SN74HC240 数据表(HTML) 3 Page - Texas Instruments |
3 / 6 page SN54HC240, SN74HC240 OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS SCLS128B – DECEMBER 1982 – REVISED MAY 1997 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions SN54HC240 SN74HC240 UNIT MIN NOM MAX MIN NOM MAX UNIT VCC Supply voltage 2 5 6 2 5 6 V VCC = 2 V 1.5 1.5 VIH High-level input voltage VCC = 4.5 V 3.15 3.15 V VCC = 6 V 4.2 4.2 VCC = 2 V 0 0.5 0 0.5 VIL Low-level input voltage VCC = 4.5 V 0 1.35 0 1.35 V VCC = 6 V 0 1.8 0 1.8 VI Input voltage 0 VCC 0 VCC V VO Output voltage 0 VCC 0 VCC V VCC = 2 V 0 1000 0 1000 tt Input transition (rise and fall) time VCC = 4.5 V 0 500 0 500 ns VCC = 6 V 0 400 0 400 TA Operating free-air temperature –55 125 –40 85 °C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC TA = 25°C SN54HC240 SN74HC240 UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX MIN MAX UNIT 2 V 1.9 1.998 1.9 1.9 IOH = –20 µA 4.5 V 4.4 4.499 4.4 4.4 VOH VI = VIH or VIL 6 V 5.9 5.999 5.9 5.9 V IOH = –6 mA 4.5 V 3.98 4.3 3.7 3.84 IOH = –7.8 mA 6 V 5.48 5.8 5.2 5.34 2 V 0.002 0.1 0.1 0.1 IOL = 20 µA 4.5 V 0.001 0.1 0.1 0.1 VOL VI = VIH or VIL 6 V 0.001 0.1 0.1 0.1 V IOL = 6 mA 4.5 V 0.17 0.26 0.4 0.33 IOL = 7.8 mA 6 V 0.15 0.26 0.4 0.33 II VI = VCC or 0 6 V ±0.1 ±100 ±1000 ±1000 nA IOZ VO = VCC or 0 6 V ±0.01 ±0.5 ±10 ±5 µA ICC VI = VCC or 0, IO = 0 6 V 8 160 80 µA Ci 2 V to 6 V 3 10 10 10 pF |
类似零件编号 - SN74HC240 |
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类似说明 - SN74HC240 |
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