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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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SN74LS240DB bảng dữ liệu(PDF) 6 Page - Texas Instruments |
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SN74LS240DB bảng dữ liệu(HTML) 6 Page - Texas Instruments |
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6 / 41 page  6 SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244 SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244 SDLS144D – APRIL 1985 – REVISED OCTOBER 2016 www.ti.com Product Folder Links: SN54LS240 SN54LS241 SN54LS244 SN54S240 SN54S241 SN54S244 SN74LS240 SN74LS241 SN74LS244 SN74S240 SN74S241 SN74S244 Submit Documentation Feedback Copyright © 1985–2016, Texas Instruments Incorporated Electrical Characteristics – SNx4S24x (continued) over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS(1) MIN TYP(2) MAX UNIT (3) Not more than one output must be shorted at a time, and duration of the short-circuit must not exceed one second. IOZH VCC = MAX, VIL = 0.8 V, VIH = 2 V, VO = 2.4 V 50 µA IOZL VCC = MAX, VIL = MAX, VIH = 2 V, VO = 0.5 V –50 µA II VCC = MAX, VI = 5.5 V 1 mA IIH VCC = MAX, VI = 2.7 V 50 µA IIL VCC = MAX, VIL = 0.5 V Any A –400 µA Any G –2 mA IOS (3) VCC = MAX –50 –225 mA ICC VCC = MAX, output open Outputs high SN54S240 80 123 mA SN74S240 80 135 SN54S241, SN54S244 95 147 SN74S241, SN74S244 95 160 Outputs low SN54S240 100 145 SN74S240 100 150 SN54S241, SN54S244 120 170 SN74S241, SN74S244 120 180 Outputs disabled SN54S240 100 145 SN74S240 100 150 SN54S241, SN54S244 120 170 SN74S241, SN74S244 120 180 6.7 Switching Characteristics – SNx4LS24x VCC = 5 V, TA = 25°C (see SN54LS24x and SN74LS24x Devices) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tPLH RL = 667 Ω, CL = 45 pF SNx4LS240 9 14 ns SNx4LS241, SNx4LS244 12 18 tPHL RL = 667 Ω, CL = 45 pF 12 18 ns tPZL RL = 667 Ω, CL = 45 pF 20 30 ns tPZH RL = 667 Ω, CL = 45 pF 15 23 ns tPLZ RL = 667 Ω, CL = 5 pF 10 20 ns tPHZ RL = 667 Ω, CL = 5 pF 15 25 ns 6.8 Switching Characteristics – SNx4S24x VCC = 5 V and TA = 25°C (see SN54S24x and SN74S24x Devices) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tPLH RL = 90 Ω, CL = 50 pF SNx4S240 4.5 7 ns SNx4S241, SNx4S244 6 9 tPHL RL = 90 Ω, CL = 50 pF SNx4S240 4.5 7 ns SNx4S241, SNx4S244 6 9 tPZL RL = 90 Ω, CL = 50 pF 10 15 ns tPZH RL = 90 Ω, CL = 50 pF SNx4S240 6.5 10 ns SNx4S241, SNx4S244 8 12 tPLZ RL = 90 Ω, CL = 5 pF 10 15 ns tPHZ RL = 90 Ω, CL = 5 pF 6 9 ns |
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