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PC87303 Datasheet(PDF) 98 Page - National Semiconductor (TI) |
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PC87303 Datasheet(HTML) 98 Page - National Semiconductor (TI) |
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98 / 114 page  100 Electrical Characteristics (Continued) 1015 Keyboard Controller and Real-Time Clock Pins 0 C–70 C Symbol Parameter Conditions Min Max Units VOH Minimum High Level Output Voltage VIN e VIH or VIL P10 – P17 P20 – P27 (Note 1) IOH eb20 mA 24 V All other push-pull outputs IOH eb40 mA 24 V KBCLK KBDAT MCLK MDAT (Note 2) VOL Maximum Low Level Output Voltage VIN e VIH or VIL P10 – P17 P20 – P27 IOL e 20 mA 04 V KBDAT KBCLK MCLK MDAT IOL e 160 mA 04 V All Other Outputs IOL e 40 mA 04 V IIN Maximum Input Current VIN e VCC or VSS Inputs only 10 m A A0 – A9 AEN CS IOR IOW PWRGOOD T0 T1 IOs only 10 m A D0–D7 IOs with Resistors VIN e VCC 10 m A P10 – P17 P20 – P27 SYNC VIN e VIL 400 m A IBAT VBAT Maximum Quiescent Supply Current VBAT e 30V VIN e VCC e VSS e 0V 8 m A Real-Time Clock f e 32768 kHz Input Leakage VCC e 50V VBAT e 30V 04 m A VBAT Battery Voltage 24 VCC b 05 V Note 1 IOH is driven for 10 ns on switch from low to high Note 2 KBCLK KBDAT MCLK and MDAT are open drain outputs with 10k minimum pull-up resistors 102 AC ELECTRICAL CHARACTERISTICS 1021 AC Test Conditions TA e 0 Cto a70 C VDD e 50V g 10% LOAD CIRCUIT (Notes 1 2 3) TLC12074 – 53 AC TESTING INPUT OUTPUT WAVEFORM TLC12074 – 54 Note 1 CL e 100 pF includes jig and scope capacitance Note 2 S1 e Open for push-pull outputs S1 e VDD for high impedance to active low and active low to high impedance measurements S1 e GND for high impedance to active high and active high to high impedance measurements RL e 10 kX for mP interface pins Note 3 For the FDC Open Drive Interface Pins S1 e VDD and RL e 150X 98 |
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