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SN74ALS540-1DW Datasheet(PDF) 4 Page - Texas Instruments |
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SN74ALS540-1DW Datasheet(HTML) 4 Page - Texas Instruments |
4 / 18 page SN54ALS541, SN74ALS540, SN74ALS541 OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS SDAS025D – APRIL 1982 – REVISED MARCH 2002 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SN54ALS541 SN74ALS540 SN74ALS541 UNIT MIN TYP‡ MAX MIN TYP‡ MAX VIK VCC = 4.5 V, II = – 18 mA – 1.2 – 1.2 V VCC = 4.5 V to 5.5 V, IOH = – 0.4 mA VCC – 2 VCC – 2 VOH IOH = – 3 mA 2.4 3.2 2.4 3.2 V VOH VCC = 4.5 V IOH = – 12 mA 2 V IOH = – 15 mA 2 IOL = 12 mA 0.25 0.4 0.25 0.4 VOL VCC = 4.5 V IOL = 24 mA 0.35 0.5 V IOL = 48 mA† 0.35 0.5 IOZH VCC = 5.5 V, VO = 2.7 V 20 20 µA IOZL VCC = 5.5 V, VO = 0.4 V – 20 – 20 µA II VCC = 5.5 V, VI = 7 V 0.1 0.1 mA IIH VCC = 5.5 V, VI = 2.7 V 20 20 µA IIL VCC = 5.5 V, VI = 0.4 V – 0.2 – 0.1 mA IO§ VCC = 5.5 V, VO = 2.25 V – 20 – 112 – 30 – 112 mA Outputs high 5 10 SN74ALS540 VCC = 5.5 V Outputs low 13 22 ICC Outputs disabled 11 19 mA ICC Outputs high 6 14 6 14 mA ’ALS541 VCC = 5.5 V Outputs low 15 25 15 25 Outputs disabled 13.5 32 13.5 22 † Applies only to the -1 version and only if VCC is between 4.75 V and 5.25 V ‡ 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 SN54ALS541 SN74ALS540 SN74ALS541 MIN MAX MIN MAX MIN MAX tPLH A Y 4 17 2 12 4 14 ns tPHL A Y 2 14 2 9 2 10 ns tPZH OE Y 5 18 5 15 5 15 ns tPZL OE Y 8 28 8 20 8 20 ns tPHZ OE Y 1 12 1 10 1 10 ns tPLZ OE Y 2 14 2 12 2 12 ns ¶ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. |
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