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SN74BCT574NSR 数据表(PDF) 3 Page - Texas Instruments |
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SN74BCT574NSR 数据表(HTML) 3 Page - Texas Instruments |
3 / 18 page SN54BCT574, SN74BCT574 OCTAL TRANSPARENT D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCBS074C – SEPTEMBER 1991 – REVISED MARCH 2003 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions (see Note 3) SN54BCT574 SN74BCT574 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 0.8 0.8 V IIK Input clamp current –18 –18 mA IOH High-level output current –12 –15 mA IOL Low-level output current 48 64 mA TA Operating free-air temperature –55 125 0 70 °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 SN54BCT574 SN74BCT574 UNIT PARAMETER TEST CONDITIONS MIN TYP† MAX MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = –18 mA –1.2 –1.2 V IOH = –3 mA 2.4 3.3 2.4 3.3 VOH VCC = 4.5 V IOH = –12 mA 2 3.2 V IOH = –15 mA 2 3.1 VOL VCC =4 5V IOL = 48 mA 0.38 0.55 V VOL VCC = 4.5 V IOL = 64 mA 0.42 0.55 V II VCC = 5.5 V, VI = 5.5 V 0.4 0.4 mA IIH VCC = 5.5 V, VI = 2.7 V 20 20 µA IIL VCC = 5.5 V, VI = 0.5 V –0.6 –0.6 mA IOS‡ VCC = 5.5 V, VO = 0 –100 –225 –100 –225 mA IOZH VCC = 5.5 V, VO = 2.7 V 50 50 µA IOZL VCC = 5.5 V, VO = 0.5 V –50 –50 µA ICCL VCC = 5.5 V, Outputs open 38.1 62 38.1 62 mA ICCH VCC = 5.5 V, Outputs open 4.9 8 4.9 8 mA ICCZ VCC = 5.5 V, Outputs open 4.5 8 4.9 8 mA Ci VCC = 5 V, VI = 2.5 V or 0.5 V 5.5 pF Co VCC = 5 V, VO = 2.5 V or 0.5 V 7.5 pF † All typical values are at VCC = 5 V, TA = 25°C. ‡ Not more than one output should be tested at a time, and the duration of the test should not exceed one second. timing requirements over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) VCC = 5 V, TA = 25°C SN54BCT574 SN74BCT574 UNIT MIN MAX MIN MAX MIN MAX fclock Clock frequency 77 77 77 MHz tw Pulse duration, CLK high or low 6.5 6.5 6.5 ns t Setup time data before CLK ↑ High 4.5 4.5 4.5 ns tsu Setup time, data before CLK ↑ Low 6 6 6 ns th Hold time, data after CLK ↑ High or low 0 1 0 ns |
类似零件编号 - SN74BCT574NSR |
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类似说明 - SN74BCT574NSR |
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