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SN74AHC245PWRE4 Datasheet(PDF) 3 Page - Texas Instruments |
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SN74AHC245PWRE4 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 20 page SN54AHC245, SN74AHC245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCLS230I – OCTOBER 1995 – REVISED JULY 2003 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions (see Note 3) SN54AHC245 SN74AHC245 UNIT MIN MAX MIN MAX UNIT VCC Supply voltage 2 5.5 2 5.5 V VCC = 2 V 1.5 1.5 VIH High-level input voltage VCC = 3 V 2.1 2.1 V VCC = 5.5 V 3.85 3.85 VCC = 2 V 0.5 0.5 VIL Low-level input voltage VCC = 3 V 0.9 0.9 V VCC = 5.5 V 1.65 1.65 VI Input voltage OE or DIR 0 5.5 0 5.5 V VO Output voltage A or B 0 VCC 0 VCC V VCC = 2 V –50 –50 mA IOH High-level output current VCC = 3.3 V ± 0.3 V –4 –4 mA VCC = 5 V ± 0.5 V –8 –8 mA VCC = 2 V 50 50 mA IOL Low-level output current VCC = 3.3 V ± 0.3 V 4 4 mA VCC = 5 V ± 0.5 V 8 8 mA ∆t/∆v Input transition rise or fall rate VCC = 3.3 V ± 0.3 V 100 100 ns/V ∆t/∆v Input transition rise or fall rate VCC = 5 V ± 0.5 V 20 20 ns/V 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 SN54AHC245 SN74AHC245 UNIT PARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX MIN MAX UNIT 2 V 1.9 2 1.9 1.9 IOH = –50 mA 3 V 2.9 3 2.9 2.9 VOH 4.5 V 4.4 4.5 4.4 4.4 V IOH = –4 mA 3 V 2.58 2.48 2.48 IOH = –8 mA 4.5 V 3.94 3.8 3.8 2 V 0.1 0.1 0.1 IOL = 50 mA 3 V 0.1 0.1 0.1 VOL 4.5 V 0.1 0.1 0.1 V IOL = 4 mA 3 V 0.36 0.5 0.44 IOL = 8 mA 4.5 V 0.36 0.5 0.44 I A or B inputs V V or GND 5.5 V ±0.1 ±1 ±1 A II OE or DIR VI = VCC or GND 0 V to 5.5 V ±0.1 ±1* ±1 mA IOZ† VO = VCC or GND, VI (OE) = VIL or VIH 5.5 V ±0.25 ±2.5 ±2.5 mA ICC VI = VCC or GND, IO = 0 5.5 V 4 40 40 mA Ci OE or DIR VI = VCC or GND 5 V 2.5 10 10 pF Cio A or B inputs VI = VCC or GND 5 V 4 pF * On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V. † The parameter IOZ includes the input leakage current. |
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