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CD74HC163 데이터시트(PDF) 7 Page - Texas Instruments |
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CD74HC163 데이터시트(HTML) 7 Page - Texas Instruments |
7 / 19 page 7 HCT TYPES Maximum CP Frequency fMAX - 4.5 30 - - 24 - 20 - MHz CP Width (Low) (Note 6) tW(L) - 4.5 16 - - 20 - 24 - ns MR Pulse Width (161) tW - 4.5 20 - - 25 - 30 - ns Setup Time, Pn to CP tSU - 4.5 10 - - 13 - 15 - ns Setup Time, PE or TE to CP tSU - 4.5 13 - - 16 - 20 - ns Setup Time, SPE to CP tSU - 4.5 12 - - 15 - 18 - ns Setup Time, MR to CP (163) tSU - 4.5 13 - - 16 - 20 - ns Hold Time, PN to CP tH - 4.5 5 - - 5 - 5 - ns Hold Time, TE or PE to CP tH - 4.5 3 - - 3 - 3 - ns Hold Time, SPE to CP tH - 4.5 3 - - 3 - 3 - ns Recovery Time, MR to CP (161) tREC - 4.5 15 - - 19 - 22 - ns NOTE: 6. Applies to non-cascaded operation only. With cascaded counters clock to terminal count propagation delays, count enables (PE or TE)- to-clock setup times, and count enables (PE or TE)-to-clock hold times determine maximum clock frequency. For example with these HC devices: Switching Specifications CL = 50pF, Input tr, tf = 6ns PARAMETER SYMBOL TEST CONDITIONS VCC (V) 25oC -40oC TO 85oC -55oC TO 125oC UNITS MIN TYP MAX MIN MAX MIN MAX HC TYPES Propagation Delay tPHL, tPLH CL = 50pF CP to TC 2 - - 185 - 230 - 280 ns 4.5 - - 37 - 46 - 56 ns CL = 15pF 5 - 15 - - - - - ns CL = 50pF 6 - - 31 - 39 - 48 ns CP to Qn tPHL, tPLH CL = 50pF 2 - - 185 - 230 - 280 ns 4.5 - - 37 - 46 - 56 ns CL = 15pF 5 - 15 - - - - - ns CL = 50pF 6 - - 31 - 39 - 48 ns TE to TC tPHL, tPLH CL = 50pF 2 - - 120 - 150 - 180 ns 4.5 - - 24 - 30 - 36 ns CL = 15pF 5 - 9 - - - - - ns CL = 50pF 6 - - 20 - 26 - 31 ns Prerequisite For Switching Specifications (Continued) PARAMETER SYMBOL TEST CONDITIONS VCC (V) 25oC -40oC TO 85oC -55oC TO 125oC UNITS MIN TYP MAX MIN MAX MIN MAX f MAX (CP) 1 CP-to-TC prop. delay TE-to-CP setup TE-to-CP Hold ++ ----------------------------------------------------------------------------------------------------------------------------------------------------- 1 37 10 0 ++ ----------------------------- 21MHz min () ≈ == CD54/74HC161, CD54/74HCT161, CD54/74HC163, CD54/74HCT163 |
유사한 부품 번호 - CD74HC163 |
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유사한 설명 - CD74HC163 |
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