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MC74AC259D Datasheet(PDF) 6 Page - ON Semiconductor |
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MC74AC259D Datasheet(HTML) 6 Page - ON Semiconductor |
6 / 11 page MC74AC259, MC74ACT259 http://onsemi.com 6 AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D) Symbol Parameter VCC* (V) 74AC 74AC Unit Fig. No. TA = +25°C CL = 50 pF TA = −40°C to +85 °C CL = 50 pF Min Typ Max Min Max tPLH Propagation Delay 3.3 2.0 9.0 14.5 1.5 17.0 ns 3−5 Dn to Qn 5.0 2.0 6.5 10.0 1.5 11.5 tPHL Propagation Delay 3.3 2.0 9.0 13.5 1.5 16.0 ns 3−5 Dn to Qn 5.0 2.0 6.0 9.5 1.5 11.0 tPLH Propagation Delay 3.3 2.0 10.5 15.0 1.5 17.5 ns 3−6 E to Qn 5.0 2.0 7.0 10.5 1.5 12.5 tPHL Propagation Delay 3.3 2.0 8.0 12.5 1.5 15.0 ns 3−6 E to Qn 5.0 2.0 7.5 9.0 1.5 11.0 tPLH Propagation Delay 3.3 2.0 12.0 19.0 1.5 22.5 ns 3−6 Address to Qn 5.0 2.0 8.0 13.0 1.5 15.5 tPHL Propagation Delay 3.3 2.0 10.0 16.0 1.5 19.0 ns 3−6 Address to Qn 5.0 2.0 7.0 11.0 1.5 13.0 tPHL Propagation Delay 3.3 2.0 8.0 12.0 1.5 13.5 ns 3−7 MR to Q 5.0 2.0 6.0 9.0 1.5 10.0 *Voltage Range 3.3 V is 3.3 V ±0.3 V. *Voltage Range 5.0 V is 5.0 V ±0.5 V. AC OPERATING REQUIREMENTS Symbol Parameter VCC* (V) 74AC 74AC Unit Fig. No. TA = +25°C CL = 50 pF TA = −40°C to +85°C CL = 50 pF Typ Guaranteed Minimum ts Setup Time, HIGH or LOW 3.3 − 3.5 4.5 ns 3−9 Dn to E 5.0 − 2.5 3.5 th Hold Time, HIGH or LOW 3.3 − 2.5 2.5 ns 3−9 Dn to E 5.0 − 2.0 2.0 ts Setup Time 3.3 − 7.0 9.0 ns 3−6 Address to E 5.0 − 4.0 6.0 th Hold Time 3.3 − 2.0 2.0 ns 3−6 Address to E 5.0 − 2.0 2.0 tw Minimum Pulse 3.3 − 6.0 6.5 ns 3−6 Width MR 5.0 − 5.5 6.0 tw Minimum Pulse 3.3 − 6.5 7.0 ns 3−6 Width E 5.0 − 5.5 6.0 *Voltage Range 3.3 V is 3.3 V ±0.3 V. *Voltage Range 5.0 V is 5.0 V ±0.5 V. |
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