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SN74LS748N 数据表(PDF) 5 Page - Motorola, Inc |
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SN74LS748N 数据表(HTML) 5 Page - Motorola, Inc |
5 / 7 page 5-249 FAST AND LS TTL DATA SN54/74LS147 • SN54/74LS148 • SN54/74LS748 AC CHARACTERISTICS (VCC = 5.0 V, TA = 25°C) SN54 / 74LS147 Symbol From (Input) To (Output) Waveform Limits Unit Test Conditions Symbol From (Input) To (Output) Waveform Min Typ Max Unit Test Conditions tPLH Any Any In-phase output 12 18 ns CL = 15 pF, RL = 2.0 kΩ tPHL Any Any In-phase output 12 18 ns CL = 15 pF, RL = 2.0 kΩ tPLH Any Any Out-of-phase output 21 33 ns CL = 15 pF, RL = 2.0 kΩ tPHL Any Any Out-of-phase output 15 23 ns SN54 / 74LS148 SN54 / 74LS748 Symbol From (Input) To (Output) Waveform Limits Unit Test Conditions Symbol From (Input) To (Output) Waveform Min Typ Max Unit Test Conditions tPLH 1 thru 7 A0, A1, or A2 In-phase output 14 18 ns CL = 15 pF, RL = 2.0 kΩ tPHL 1 thru 7 A0, A1, or A2 In-phase output 15 25 ns CL = 15 pF, RL = 2.0 kΩ tPLH 1 thru 7 A0, A1, or A2 Out-of-phase output 20 36 ns CL = 15 pF, RL = 2.0 kΩ tPHL 1 thru 7 A0, A1, or A2 Out-of-phase output 16 29 ns CL = 15 pF, RL = 2.0 kΩ tPLH 0 thru 7 EO Out-of-phase output 7.0 18 ns CL = 15 pF, RL = 2.0 kΩ tPHL 0 thru 7 EO Out-of-phase output 25 40 ns CL = 15 pF, RL = 2.0 kΩ tPLH 0 thru 7 GS In-phase output 35 55 ns CL = 15 pF, RL = 2.0 kΩ tPHL 0 thru 7 GS In-phase output 9.0 21 ns RL = 2.0 kΩ tPLH EI A0, A1, or A2 In-phase output 16 25 ns tPHL EI A0, A1, or A2 In-phase output 12 25 ns tPLH EI GS In-phase output 12 17 ns tPHL EI GS In-phase output 14 36 ns tPLH EI EO In-phase output 12 21 ns tPHL EI EO In-phase output 28 30 40 45 ns (LS148) (LS748) |
类似零件编号 - SN74LS748N |
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类似说明 - SN74LS748N |
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