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MC14555BDG Datasheet(PDF) 2 Page - ON Semiconductor |
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MC14555BDG Datasheet(HTML) 2 Page - ON Semiconductor |
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2 / 6 page  MC14555B, MC14556B http://onsemi.com 2 TRUTH TABLE Inputs Outputs Enable Select MC14555B MC14556B E B A Q3 Q2 Q1 Q0 Q3Q2Q1Q0 0 0 0 0 0011 110 0 0 1 0 0101 101 0 1 0 0 1001 011 0 1 1 1 0000 111 1 X X 0 0001 111 X = Don’t Care BLOCK DIAGRAM 2 4 MC14555B MC14556B 3 1 14 13 15 5 6 7 12 11 10 9 2 4 3 1 14 13 15 5 6 7 12 11 10 9 VDD = PIN 16 VSS = PIN 8 A B E Q0 Q1 Q2 Q3 A B E Q0 Q1 Q2 Q3 A B E Q0 Q1 Q2 Q3 A B E Q0 Q1 Q2 Q3 ELECTRICAL CHARACTERISTICS (Voltages Referenced to VSS) Characteristic Symbol VDD Vdc − 55 °C 25 °C 125 °C Unit Min Max Min Typ (Note 2) Max Min Max Output Voltage “0” Level Vin = VDD or 0 VOL 5.0 10 15 − − − 0.05 0.05 0.05 − − − 0 0 0 0.05 0.05 0.05 − − − 0.05 0.05 0.05 Vdc “1” Level Vin = 0 or VDD VOH 5.0 10 15 4.95 9.95 14.95 − − − 4.95 9.95 14.95 5.0 10 15 − − − 4.95 9.95 14.95 − − − Vdc Input Voltage “0” Level (VO = 4.5 or 0.5 Vdc) (VO = 9.0 or 1.0 Vdc) (VO = 13.5 or 1.5 Vdc) VIL 5.0 10 15 − − − 1.5 3.0 4.0 − − − 2.25 4.50 6.75 1.5 3.0 4.0 − − − 1.5 3.0 4.0 Vdc “1” Level (VO = 0.5 or 4.5 Vdc) (VO = 1.0 or 9.0 Vdc) (VO = 1.5 or 13.5 Vdc) VIH 5.0 10 15 3.5 7.0 11 − − − 3.5 7.0 11 2.75 5.50 8.25 − − − 3.5 7.0 11 − − − Vdc Output Drive Current (VOH = 2.5 Vdc) Source (VOH = 4.6 Vdc) (VOH = 9.5 Vdc) (VOH = 13.5 Vdc) IOH 5.0 5.0 10 15 –3.0 –0.64 –1.6 –4.2 − − − − –2.4 –0.51 –1.3 –3.4 –4.2 –0.88 –2.25 –8.8 − − − − –1.7 –0.36 –0.9 –2.4 − − − − mAdc (VOL = 0.4 Vdc) Sink (VOL = 0.5 Vdc) (VOL = 1.5 Vdc) IOL 5.0 10 15 0.64 1.6 4.2 − − − 0.51 1.3 3.4 0.88 2.25 8.8 − − − 0.36 0.9 2.4 − − − mAdc Input Current Iin 15 − ±0.1 − ±0.00001 ±0.1 − ±1.0 mAdc Input Capacitance, (Vin = 0) Cin − − − − 5.0 7.5 − − pF Quiescent Current (Per Package) IDD 5.0 10 15 − − − 5.0 10 20 − − − 0.005 0.010 0.015 5.0 10 20 − − − 150 300 600 mAdc Total Supply Current (Notes 3, 4) (Dynamic plus Quiescent, Per Package) (CL = 50 pF on all outputs, all buffers switching) IT 5.0 10 15 IT = (0.85 mA/kHz) f + IDD IT = (1.70 mA/kHz) f + IDD IT = (2.60 mA/kHz) f + IDD mAdc Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. 2. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance. 3. The formulas given are for the typical characteristics only at 25 °C. 4. To calculate total supply current at loads other than 50 pF: IT(CL) = IT(50 pF) + (CL – 50) Vfk where: IT is in mA (per package), CL in pF, V = (VDD – VSS) in volts, f in kHz is input frequency, and k = 0.002. |
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