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HT82K75RE Datasheet(PDF) 5 Page - Holtek Semiconductor Inc |
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HT82K75RE Datasheet(HTML) 5 Page - Holtek Semiconductor Inc |
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5 / 66 page  D.C. Characteristics Ta=25 °C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions VBAT BAT_IN Operating Voltage ¾¾ 1.8 2.2 3.3 V IDD Operating Current (Crystal OSC) 3V No load, fSYS= 6MHz ¾ 36 mA ISTB Standby Current ¾ No load, system HALT WDT disable, LVR disable ¾¾ 20 mA VIL1 Input Low Voltage for I/O (Schmitt Trigger) ¾¾ 0 ¾ 0.3VDD V VIH1 Input High Voltage for I/O (Schmitt Trigger) ¾¾ 0.7VDD ¾ VDD V VIL2 Input Low Voltage (RES) ¾¾ 0 ¾ 0.3VDD V VIH2 Input High Voltage (RES) ¾¾ 0.9VDD ¾ VDD V IOL1 Other I/O Pins Sink Current 3V VOL=0.1VDD 4 ¾¾ mA IOH1 Other I/O Pins Source Current 3V VOH=0.9VDD -2.5 -4.5 ¾ mA RPH1 Other Pins Internal Pull-high Resistance 3V ¾ 10 30 50 k W A.C. Characteristics Ta=25 °C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions fSYS System Clock 3V ¾ 5.7 6 6.3 MHz tRCSYS Watchdog OSC Period 3V ¾¾ 71 ¾ms tWDT1 Watchdog Time-out Period with 6-stage Prescaler 3V WDTS=1 ¾ 4.57 ¾ ms tRES External Reset Low Pulse Width ¾¾ 1 ¾¾ ms tSST System Start-up Timer ¾¾ ¾ 512 ¾ 1/fSYS tLVR Low Voltage Width to Reset ¾¾ 0.25 1 2 ms tWake-up MCU Wake-up Timer ¾¾ ¾ ¾ 1ms tconfigure Watchdog Time-out Period ¾¾ ¾ 1024 ¾ tRCSYS HT82M75R/HT82M75RE HT82K75R/HT82K75RE Rev. 1.10 5 June 11, 2010 |
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