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MC14553BDW bảng dữ liệu(PDF) 3 Page - ON Semiconductor |
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MC14553BDW bảng dữ liệu(HTML) 3 Page - ON Semiconductor |
3 / 8 page MC14553B http://onsemi.com 3 SWITCHING CHARACTERISTICS (Note 5) (CL = 50 pF, TA = 25_C) Characteristic Figure Symbol VDD Min Typ (Note 6) Max Unit Output Rise and Fall Time 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 2a tTLH, tTHL 5.0 10 15 − − − 100 50 40 200 100 80 ns Clock to BCD Out 2a tPLH, tPHL 5.0 10 15 − − − 900 500 200 1800 1000 400 ns Clock to Overflow 2a tPHL 5.0 10 15 − − − 600 400 200 1200 800 400 ns Reset to BCD Out 2b tPHL 5.0 10 15 − − − 900 500 300 1800 1000 600 ns Clock to Latch Enable Setup Time Master Reset to Latch Enable Setup Time 2b tsu 5.0 10 15 600 400 200 300 200 100 − − − ns Removal Time Latch Enable to Clock 2b trem 5.0 10 15 – 80 – 10 0 – 200 – 70 – 50 − − − ns Clock Pulse Width 2a tWH(cl) 5.0 10 15 550 200 150 275 100 75 − − − ns Reset Pulse Width 2b tWH(R) 5.0 10 15 1200 600 450 600 300 225 − − − ns Reset Removal Time − trem 5.0 10 15 – 80 0 20 – 180 – 50 – 30 − − − ns Input Clock Frequency 2a fcl 5.0 10 15 − − − 1.5 5.0 7.0 0.9 2.5 3.5 MHz Input Clock Rise Time 2b tTLH 5.0 10 15 No Limit ns Disable, MR, Latch Enable Rise and Fall Times − tTLH, tTHL 5.0 10 15 − − − − − − 15 5.0 4.0 ms Scan Oscillator Frequency (C1 measured in mF) 1 fosc 5.0 10 15 − − − 1.5/C1 4.2/C1 7.0/C1 − − − Hz 5. The formulas given are for the typical characteristics only at 25 _C. 6. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance. |
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