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74ALS253D データシート(PDF) 5 Page - NXP Semiconductors |
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74ALS253D データシート(HTML) 5 Page - NXP Semiconductors |
5 / 9 page Philips Semiconductors Product specification 74ALS253 Dual 4-input multiplexer (3-State) 1991 Feb 08 5 AC WAVEFORMS For all waveforms, VM = 1.3V. VM VM VM VM Yn In, Sn tPLH tPHL SF00802 Waveform 1. Propagation Delay for Data and Select to Output VM VM VM tPHZ tPZH VOH –0.3V OEn SF00804 0V Yn Waveform 2. 3-State Output Enable Time to High Level and Output Disable Time from High Level VM VM VM tPLZ tPZL VOL +0.3V OEn Yn SC00075 3.5V Waveform 3. 3-State Output Enable Time to Low Level and Output Disable Time from Low Level TEST CIRCUIT AND WAVEFORMS tw 90% VM 10% 90% VM 10% 90% VM 10% 90% VM 10% NEGATIVE PULSE POSITIVE PULSE tw AMP (V) 0.3V 0.3V tTHL (tff) INPUT PULSE REQUIREMENTS Rep.Rate tw tTLH tTHL 1MHz 500ns 2.0ns 2.0ns Input Pulse Definition VCC Family 74ALS D.U.T. PULSE GENERATOR RL CL RT VIN VOUT Test Circuit for 3-State Outputs DEFINITIONS: RL = Load resistor; see AC electrical characteristics for value. CL = Load capacitance includes jig and probe capacitance; see AC electrical characteristics for value. RT = Termination resistance should be equal to ZOUT of pulse generators. tTHL (tf ) tTLH (tr ) tTLH (tr ) AMP (V) Amplitude 3.5V 1.3V VM SC00072 RL 7.0V SWITCH POSITION TEST SWITCH tPLZ, tPZL closed All other open |
同様の部品番号 - 74ALS253D |
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同様の説明 - 74ALS253D |
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