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SN74AHCT540NSR データシート(PDF) 3 Page - Texas Instruments |
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SN74AHCT540NSR データシート(HTML) 3 Page - Texas Instruments |
3 / 22 page SN54AHCT540 SN74AHCT540 www.ti.com SCLS268M – OCTOBER 1995 – REVISED JUNE 2013 RECOMMENDED OPERATING CONDITIONS (1) SN54AHCT540 SN74AHCT540 UNIT MIN MAX MIN MAX VCC Supply voltage 4.5 5.5 4.5 5.5 V VIH High-level input voltage 2 2 V VIL Low-level Input voltage 0.8 0.8 V VI Input voltage 0 5.5 0 5.5 V VO Output voltage 0 VCC 0 VCC V IOH High-level output current –8 –8 mA IOL Low-level output current 8 8 mA Δt/Δv Input Transition rise or fall rate 20 20 ns/V TA Operating free-air temperature –55 125 –40 125 °C (1) All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. ELECTRICAL CHARACTERISTICS over operating free-air temperature range (unless otherwise noted) TA = –40°C TO TA = –55°C TO TA = –40°C TO 125°C 125°C 85°C TA = 25°C Recommended PARAMETER TEST CONDITIONS VCC UNIT SN54AHCT540 SN74AHCT540 SN74AHCT540 MIN TYP MAX MIN MAX MIN MAX MIN MAX IOH = –50 µA 4.4 4.5 4.4 4.4 4.4 VOH 4.5 V V IOH = –8 mA 3.94 3.8 3.8 3.8 IOL = 50 µA 0.1 0.1 0.1 0.1 VOL 4.5 V V IOH = 8 mA 0.36 0.44 0.44 0.44 0 V to 5.5 II VI = 5.5 V or GND ±0.1 ±1(1) ±1 ±1 µA V IOZ VO = VCC or GND 5.5 V ±0.25 ±2.5 ±2.5 ±2.5 µA VI = VCC or ICC IO = 0 5.5 V 4 40 20 40 µA GND, One input at 3.4 V, ΔICC (2) Other inputs at VCC or 5.5 V 1.35 1.5 1.5 1.5 mA GND Ci VI = VCC or GND 5 V 2 10 10 pF CO VO = VCC or GND 5V 4 pF (1) On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V. (2) This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC. Copyright © 1995–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: SN54AHCT540 SN74AHCT540 |
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