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SN74LS125ADR 数据表(PDF) 6 Page - Texas Instruments |
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SN74LS125ADR 数据表(HTML) 6 Page - Texas Instruments |
6 / 22 page SN54125, SN54126, SN54LS125A, SN54LS126A, SN74125, SN74126, SN74LS125A, SN74LS126A QUADRUPLE BUS BUFFERS WITH 3-STATE OUTPUTS SDLS044A – DECEMBER 1983 – REVISED MARCH 2002 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 recommended operating conditions SN54LS125A SN54LS126A SN74LS125A SN74LS126A UNIT MIN NOM MAX MIN NOM MAX VCC Supply voltage 4.5 5 5.5 4.75 5 5.25 V VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.7 0.8 V IOH High-level output current –1 –2.6 mA IOL Low-level output current 12 24 mA TA Operating free-air temperature –55 125 0 70 °C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS† SN54LS125A SN54LS126A SN74LS125A SN74LS126A UNIT TEST CONDITIONS MIN TYP‡ MAX MIN TYP‡ MAX VIK VCC = MIN, II = –18 mA –1.5 –1.5 V VOH VCC = MIN, VIL = 0.7 V, IOH = –1 mA 2.4 V VOH VIH = 2 V VIL = 0.8 V IOH = –2.6 mA 2.4 V V MIN VIL = 0.7 V, IOL = 12 mA 0.25 0.4 VOL VCC = MIN, VIH =2V VIL = 0.8 V, IOL = 12 mA 0.25 0.4 V VIH = 2 V VIL = 0.8 V, IOL = 24 mA 0.35 0.5 VIL =0 7V VO = 2.4 V 20 I VCC = MAX, VIL = 0.7 V VO = 0.4 V –20 µA IOZ CC , VIH = 2 V, VIL =0 8V VO = 2.4 V 20 µA VIL = 0.8 V VO = 0.4 V –20 II VCC = MAX, VI = 7 V 0.1 0.1 mA IIH VCC = MAX, VI = 2.7 V 20 20 µA IIL VCC = MAX, ’LS125A-G inputs –0.2 –0.2 mA IIL VI = 0.4 V ’LS125A-A inputs; ’LS126A All inputs –0.4 –0.4 mA IOS§ VCC = MAX –40 –225 –40 –225 mA ICC VCC = MAX ’LS125A 11 20 11 20 mA ICC CC (see Note 4) ’LS126A 12 22 12 22 mA † For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. ‡ All typical values are at VCC = 5 V, TA = 25°C. § Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second. NOTE 4: Data inputs = 0 V; output control = 4.5 V for ’LS125A and 0 V for ’LS126A. switching characteristics, VCC = 5 V, TA = 25°C (see Figure 1) PARAMETER TEST CONDITIONS SN54LS125A SN74LS125A SN54LS126A SN74LS126A UNIT PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT MIN TYP MAX MIN TYP MAX tPLH RL = 667 Ω CL =45 pF 9 15 9 15 ns tPHL RL = 667 Ω, CL = 45 F 7 18 8 18 ns tPZH RL = 667 Ω CL =45 pF 12 20 16 25 ns tPZL RL = 667 Ω, CL = 45 F 15 25 21 35 ns tPHZ RL = 667 Ω CL =5 pF 20 25 ns tPLZ RL = 667 Ω, CL = 5 F 20 25 ns The SN54125, SN54126, SN74125, SN74126, and SN54LS126A are obsolete and are no longer supplied. |
类似零件编号 - SN74LS125ADR |
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类似说明 - SN74LS125ADR |
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