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SN74AHCT244DW データシート(PDF) 3 Page - Texas Instruments |
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SN74AHCT244DW データシート(HTML) 3 Page - Texas Instruments |
3 / 17 page SN54AHCT244, SN74AHCT244 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCLS228L – OCTOBER 1995 – REVISED JULY 2003 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions (see Note 3) SN54AHCT244 SN74AHCT244 UNIT MIN MAX MIN MAX UNIT 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 TA Operating free-air temperature –55 125 –40 85 °C NOTE 3: 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 recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC TA = 25°C SN54AHCT244 SN74AHCT244 UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX MIN MAX UNIT VOH IOH = –50 mA 45 V 4.4 4.5 4.4 4.4 V VOH IOH = –8 mA 4.5 V 3.94 3.8 3.8 V VOL IOL = 50 mA 45 V 0.1 0.1 0.1 V VOL IOL = 8 mA 4.5 V 0.36 0.44 0.44 V IOZ VO = VCC or GND 5.5 V ±0.25 ±2.5 ±2.5 mA II VI = 5.5 V or GND 0 V to 5.5 V ±0.1 ±1* ±1 mA ICC VI = VCC or GND, IO = 0 5.5 V 4 40 40 mA ∆ICC† One input at 3.4 V, Other inputs at VCC or GND 5.5 V 1.35 1.5 1.5 mA Ci VI = VCC or GND 5 V 2.5 10 10 pF Co VO = VCC or GND 5 V 3 pF * On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V. † This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC. |
同様の部品番号 - SN74AHCT244DW |
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同様の説明 - SN74AHCT244DW |
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