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MC14557BDWR2 数据表(PDF) 4 Page - ON Semiconductor |
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MC14557BDWR2 数据表(HTML) 4 Page - ON Semiconductor |
4 / 8 page MC14557B http://onsemi.com 4 SWITCHING CHARACTERISTICS (7.) (CL = 50 pF, TA = 25_C) Characteristic Symbol VDD Min Typ (8.) Max Unit Rise and Fall Time, Q or Q Output tTLH, tTHL = (1.5 ns/pF) CL + 25 ns tTLH, tTHL = (0.75 ns/pF) CL + 12.5 ns tTLH, tTHL = (0.55 ns/pF) CL + 9.5 ns tTLH, tTHL 5 10 15 — — — 100 50 40 200 100 80 ns Propagation Delay, Clock or CE to Q or Q tPLH, tPHL = (1.7 ns/pF) CL + 215 ns tPLH, tPHL = (0.66 ns/pF) CL + 97 ns tPLH, tPHL = (0.5 ns/pF) CL + 65 ns tPLH, tPHL 5 10 15 — — — 300 130 90 600 260 180 ns Propagation Delay, Reset to Q or Q tPLH, tPHL = (1.7 ns/pF) CL + 215 ns tPLH, tPHL = (0.66 ns/pF) CL + 97 ns tPLH, tPHL = (0.5 ns/pF) CL + 70 ns tPLH, tPHL 5 10 15 — — — 300 130 95 600 260 190 ns Pulse Width, Clock tWH(cl) 5 10 15 200 100 75 95 45 35 — — — ns Pulse Width, Reset tWH(rst) 5 10 15 300 140 100 150 70 50 — — — ns Clock Frequency (50% Duty Cycle) fcl 5 10 15 — — — 3.0 7.5 13.0 1.7 5.0 6.7 MHz Setup Time, A or B to Clock or CE Worst case condition: L1 = L2 = L4 = L8 = L16 = L32 = VSS (Register Length = 1) tsu 5 10 15 700 290 145 350 130 85 — — — ns Best case condition: L32 = VDD, L1 through L16 = Don’t Care (Any register length from 33 to 64) 5 10 15 400 165 60 45 5 0 — — — Hold Time, Clock or CE to A or B Best case condition: L1 = L2 = L4 = L8 = L16 = L32 = VSS (Register Length = 1) th 5 10 15 200 100 10 – 150 – 60 – 50 — — — ns Worst case condition: L32 = VDD, L1 through L16 = Don’t Care (Any register length from 33 to 64) 5 10 15 400 185 85 50 25 22 — — — Rise and Fall Time, Clock tr, tf 5 10 15 No Limit — Rise and Fall Time, Reset or CE tr, tf 5 10 15 — — — — — — 15 5 4 µs Removal Time, Reset to Clock or CE trem 5 10 15 160 80 70 80 40 35 — — — ns 7. The formulas given are for the typical characteristics only at 25 _C. 8. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance. |
类似零件编号 - MC14557BDWR2 |
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类似说明 - MC14557BDWR2 |
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