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STFPC311 Datasheet(PDF) 30 Page - STMicroelectronics |
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STFPC311 Datasheet(HTML) 30 Page - STMicroelectronics |
30 / 39 page 11 Electrical characteristics STFPC311 30/39 11 Electrical characteristics Table 8. Electrical specifications (TA = -20 to +70°C, VDD = 3.3V, VSS = 0V, VSS = VDD - 33.3V) Symbol Parameter Test conditions Min. Typ. Max. Unit VOH1 High-Level Output Voltage LED1 – LED4, IOH1 = -1mA 0.9VDD V VOL1 Low-Level Output Voltage LED1 – LED4, IOH2 = 20mA 1V VOL2 Low-Level Output Voltage DOUT, IOL2 = 4mA 0.4 V IOH21 High-Level Output Current VO = VDD – 2V, Seg1to Seg12 -3 mA IOH22 High-Level Output Current VO = VDD – 2 V, Grid1to Grid8, Se13g/Grid16to Seg20/Grid9 -15 mA IOLEAK Driver Leakage Current VO = VDD – 33.3 V, driver off -10 µA RL Output Pull-Down Resistor Driver output 50 100 150 k Ω I Input Current VI= VDD or VSS ±1 µA VIH High-Level Input Voltage 0.7VDD V VIL Low-Level Input Voltage 0.3VDD V VH Hysteresis Voltage CLK, DIN, STB 0.35 V IDD(DYN) Dynamic Current Consumption Under no load, display off 5 mA Table 9. Switching characteristics (TA = -20 to +70 °C, VDD = 3.3 V, VSS = -30 V) Symbol Parameter Test conditions Min. Typ. Max. Unit tOSC Oscillation Frequency R = 33K Ω ±5% 350 500 650 kHz tPLZ Propagation Delay Time CLK ≤DOUT CL = 15pF, RL = 10KΩ 300 ns tPZL 100 ns tTZH1 Rise Time CL = 300pF Seg1 to Seg12 2 µs tTZH2 Grid1 to Grid8, Seg13/Seg16 to Seg20/Grid9 0.5 µs tTHZ Fall Time CL = 300pF, Segn, Gridn 120 µs fMAX Maximum Clock Frequency Duty = 50% 1 MHz CI Input Capacitance 15 pF |
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