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HT16K33 Datasheet(PDF) 9 Page - Holtek Semiconductor Inc |
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HT16K33 Datasheet(HTML) 9 Page - Holtek Semiconductor Inc |
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9 / 47 page  Rev. 1.10 � �a� 1�� �011 Rev. 1.10 7 �a� 1�� �011 HT16K33 RAM Mapping 16*8 LED Controller Driver with keyscan D.C. Characteristics VDD =4.5~5.5V; Ta=25°C (Unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions VDD Operating Voltage — — 4.5 5 5.5 V IDD Operating Current 5 No load� normal operation� INT/ROW bit is set to “0” — 1 � mA ISTB Standb� Current 5 No load� standb� mode — 1 10 μA VIH Input high Voltage 5 SDA�SCL 0.7VDD — VDD V VIL Input Low Voltage 5 SDA� SCL 0 — 0.3VDD V IIL Input leakage current — VIN = VSS or VDD -1 — 1 μA RPL Input pull-low resistor 5 ROW3/K1~ROW15/K13� ROW0/A�~ROW�/A0 Ke�scan during �50 — — KΩ IOL1 Low level output current 5 VOL=0.4V; SDA � — — mA IOL� ROW Sink Current 5 VOL=0.4V� INT pin � — — mA IOH1 ROW Source Current 5 VOH=VDD-�V� (ROW0~ROW15 pin) -�0 -�5 -40 mA VOH=VDD-3V� (ROW0~ROW15 pin ) -�5 -30 -50 mA Imath ROW Source Current tolerance 5 VOH=VDD-3V� (ROW0~ROW15 pin ) — — 5 % IOL3 CO� Sink Current 5 VOL=0.3V� (CO�0~CO�7 pin) 1�0 �00 — mA IOH� CO� Source Current 5 VOH=VDD-�V� (CO�0~CO�3 pin) -�0 -�5 -40 mA A.C. Characteristics VDD =4.5~5.5V; Ta=25°C (Unless otherwise specified) Symbol Parameter Test condition Min. Typ. Max. Unit VDD Condition tLED LED Frame time 5 1/9 Dut� 7.� 9.5 11.4 ms tOFF VDD OFF Time — VDD drop down to 0V �0 — — ms tSR VDD Slew Rate — — 0.05 — — V/ms Note: 1. If the Power on Reset timing conditions are not satisfied in the power ON/OFF sequence, the internal Power on Reset circuit will not operate normally. 2. If VDD drops below the minimum voltage of the operating voltage spec. during operating, the Power on Reset timing conditions must also be satisfied. That is, VDD must drop to 0V and remain at 0V for 20ms (min.) before rising to the normal operating voltage. |
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