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SN74AS230A 데이터시트(PDF) 3 Page - Texas Instruments |
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SN74AS230A 데이터시트(HTML) 3 Page - Texas Instruments |
3 / 5 page SN74AS230A OCTAL BUFFER/DRIVER WITH 3-STATE OUTPUTS SDAS213B – DECEMBER 1982 – REVISED DECEMBER 1994 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VIK VCC = 4.5 V, II = – 18 mA – 1.2 V VCC = 4.5 V to 5.5 V, IOH = – 2 mA VCC –2 VOH VCC =4 5V IOH = – 3 mA 2.4 3.4 V VCC = 4.5 V IOH = – 15 mA 2.4 VOL VCC = 4.5 V, IOL = 64 mA 0.31 0.55 V IOZH VCC = 5.5 V, VO = 2.7 V 50 µA IOZL VCC = 5.5 V, VO = 0.4 V –50 µA II VCC = 5.5 V, VI = 7 V 0.1 mA IIH VCC = 5.5 V, VI = 2.7 V 20 µA IIL 2A inputs VCC =5 5V VI =0 4V –1 mA IIL All other inputs VCC = 5.5 V, VI = 0.4 V – 0.5 mA IO‡ VCC = 5.5 V, VO = 2.25 V –50 – 150 mA Outputs high 16 25 ICC VCC = 5.5 V Outputs low 55 87 mA Outputs disabled 29 46 † All typical values are at VCC = 5 V, TA = 25°C. ‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS. switching characteristics (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = MIN to MAX§ UNIT MIN MAX tPLH 1A 1Y 2 6.5 ns tPHL 1A 1Y 1 5.7 ns tPLH 2A 2Y 2 6.2 ns tPHL 2A 2Y 1 6.2 ns tPZH 1OE 1Y 2 6.4 ns tPZL 1OE 1Y 2 8.5 ns tPHZ 1OE 1Y 2 6 ns tPLZ 1OE 1Y 2 9.5 ns tPZH 2OE 2Y 2 9 ns tPZL 2OE 2Y 2 7.5 ns tPHZ 2OE 2Y 2 6 ns tPLZ 2OE 2Y 2 9 ns § For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. |
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