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HEF40161B Datasheet(PDF) 6 Page - NXP Semiconductors |
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HEF40161B Datasheet(HTML) 6 Page - NXP Semiconductors |
6 / 10 page ![]() January 1995 6 Philips Semiconductors Product specification 4-bit synchronous binary counter with asynchronous reset HEF40161B MSI AC CHARACTERISTICS VSS = 0 V; Tamb =25 °C; CL = 50 pF; input transition times ≤ 20 ns Output transition times 5 60 120 ns 10 ns + (1,0 ns/pF) CL HIGH to LOW 10 tTHL 30 60 ns 9 ns + (0,42 ns/pF) CL 15 20 40 ns 6 ns + (0,28 ns/pF) CL 5 60 120 ns 10 ns + (1,0 ns/pF) CL LOW to HIGH 10 tTLH 30 60 ns 9 ns + (0,42 ns/pF) CL 15 20 40 ns 6 ns + (0,28 ns/pF) CL VDD V SYMBOL MIN. TYP. MAX. Minimum clock 5 100 50 ns see also waveforms Figs 5, 6, 7 and 8 pulse width; LOW 10 tWCPL 40 20 ns 15 30 15 ns Minimum MR 5 100 50 ns pulse width; LOW 10 tWMRL 40 20 ns 15 30 15 ns Recovery time 5 25 0 ns for MR 10 tRMR 15 0 ns 15 10 0 ns Set-up times 5 110 55 ns Pn → CP 10 tsu 40 20 ns 15 30 15 ns 5 120 60 ns PE → CP 10 tsu 40 20 ns 15 25 10 ns 5 260 130 ns CEP, CET → CP 10 tsu 100 50 ns 15 70 35 ns Hold times 5 20 −35 ns Pn → CP 10 thold 10 −10 ns 15 5 −10 ns 515 −45 ns PE → CP 10 thold 5 −15 ns 15 5 −10 ns 525 −105 ns CEP, CET → CP 10 thold 15 −35 ns 15 10 −25 ns VDD V SYMBOL MIN. TYP. MAX. TYPICAL EXTRAPOLATION FORMULA |