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HD74LS93P Datasheet(PDF) 6 Page - Renesas Technology Corp |
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HD74LS93P Datasheet(HTML) 6 Page - Renesas Technology Corp |
6 / 9 page HD74LS93 Rev.2.00, Feb.18.2005, page 6 of 8 Testing Table Inputs Outputs Item From input to output A B R0 QA QB QC QD A → Q IN to QA GND Out Out Out Out fmax B → Q 4.5 V IN GND — Out Out Out A → QA IN to QA GND Out — — — A → QD IN to QA GND — — — Out B → QB 4.5 V IN GND — Out — — B → QC 4.5 V IN GND — — Out — B → QD 4.5 V IN GND — — — Out tPLH tPHL R0** → Q IN* to QA IN Out Out Out Out * For initialized. ** Measured with each input and unused inputs at 4.5 V. Waveform 1. fmax, tPLH, tPHL (Clock → Q) VOH VOL VOH VOL VOH VOL VOH VOL 0V 3V Clock QA QB QC QD 1.3 V tTHL tPHL (Measure at tn+8) 1.3 V tPHL (Measure at tn+4) 1.3 V tPHL(Measure at tn+2) 1.3 V tPLH (Measure at tn+1) 1.3 V tPLH (Measure at tn+2) 1.3 V tPLH (Measure at tn+4) 1.3 V tPLH (Measure at tn+8) 1.3 V tPHL (Measure at tn+16) 1.3 V 10% 90% tTLH 10% 90% 1.3 V Notes: 1. Input pulse; tTLH ≤ 15 ns, t THL ≤ 5 ns, PRR = 1 MHz, duty cycle = 50% and for fmax., tTLH = tTHL ≤ 2.5 ns 2. tn is reference bit time when all outputs are low. |
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