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DM74ALS240A bảng dữ liệu(PDF) 4 Page - Fairchild Semiconductor |
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DM74ALS240A bảng dữ liệu(HTML) 4 Page - Fairchild Semiconductor |
4 / 7 page www.fairchildsemi.com 4 Switching Characteristics DM74ALS240A over recommended operating free air temperature range Switching Characteristics DM74ALS241A over recommended operating free air temperature range Symbol Parameter Conditions From (Input) To (Output) Min Max Units tPLH Propagation Delay Time VCC = 4.5V to 5.5V, 29 ns LOW-to-HIGH Level Output CL = 50 pF, AY tPHL Propagation Delay Time R1 = 500Ω, 29 ns HIGH-to-LOW Level Output R2 = 500Ω, tPZH Output Enable Time TA = Min to Max 313 ns to HIGH Level Output G Y tPZL Output Enable Time 318 ns to LOW Level Output tPHZ Output Disable Time 210 ns from HIGH Level Output G Y tPLZ Output Disable Time 312 ns from LOW Level Output Symbol Parameter Conditions From (Input) To (Output) Min Max Units tPLH Propagation Delay Time VCC = 4.5V to 5.5V, 311 ns LOW-to-HIGH Level Output CL = 50 pF, AY tPHL Propagation Delay Time R1 = 500Ω, 310 ns HIGH-to-LOW Level Output R2 = 500Ω, tPZH Output Enable Time TA = Min to Max 321 ns to HIGH Level Output 1G Y tPZL Output Enable Time 321 ns to HIGH Level Output tPHZ Output Disable Time 210 ns to HIGH Level Output 1G Y tPLZ Output Disable Time 315 ns to LOW Level Output tPZH Output Enable Time 721 ns to HIGH Level Output 2G Y tPZL Output Enable Time 721 ns to LOW Level Output tPHZ Output Disable Time 210 ns from HIGH Level Output 2G Y tPLZ Output Disable Time 315 ns from LOW Level Output |
Số phần tương tự - DM74ALS240A |
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Mô tả tương tự - DM74ALS240A |
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