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HT47C20 Datasheet(PDF) 6 Page - Holtek Semiconductor Inc |
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HT47C20 Datasheet(HTML) 6 Page - Holtek Semiconductor Inc |
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6 / 46 page  D.C. Characteristics Ta=25 °C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions VDD Operating Voltage ¾¾ 2.4 3 3.6 V IDD1 Operating Current (Crystal OSC) 3V No load, fSYS=455kHz A/D Off ¾ 0.2 0.4 mA IDD2 Operating Current (RC OSC) 3V No load, fSYS=455kHz A/D Off ¾ 0.2 0.4 mA ISTB1 Standby Current (32.768kHz Crystal Oscillator Enable, LCD Off) 3V No load, system HALT ¾¾ 3 mA ISTB2 Standby Current (32.768kHz Crystal Oscillator Enable, LCD On) 3V No load, system HALT ¾¾ 5 mA ISTB3 Standby Current (Watchdog RC Oscillator Enable, LCD Off) 3V No load, system HALT ¾¾ 7 mA ISTB4 Standby Current (Watchdog RC Oscillator Enable, LCD On) 3V No load, system HALT ¾¾ 10 mA ISTB5 Standby Current (32.768kHz Crystal and Watchdog RC Oscillator Both Disabled, LCD Off) 3V No load, system HALT ¾¾ 1 mA ISTB6 Standby Current (A/D On, *R=5k W, *f=500kHz) 3V No load, system HALT ¾ 600 1200 mA VIL1 Input Low Voltage for I/O Ports 3V ¾ 0 ¾ 0.9 V VIH1 Input High Voltage for I/O Ports 3V ¾ 2.1 ¾ 3V VIL2 Input Low Voltage (RES)3V 0.5VDD 0 ¾ 1.5 V VIL3 Input Low Voltage (INT, TMR) 3V 0.3VDD 0 ¾ 0.9 V VIH2 Input High Voltage (RES, INT, TMR) 3V 0.8VDD 2.4 ¾ 3V IOL I/O Port Sink Current 3V VOL=0.3V 2 3.5 ¾ mA IOH I/O Port Source Current 3V VOH=2.7V -1 -1.5 ¾ mA IOL1 Common 0~3 Output Sink Current 3V VOL=0.3V (1/2 bias) 50 100 ¾mA IOH1 Common 0~3 Output Source Current 3V VOH=2.7V (1/2 bias) -50 -100 ¾mA IOL2 Segment 0~19 Output Sink Current 3V VOL=0.3V (1/2 bias) 15 30 ¾mA IOH2 Segment 0~19 Output Source Current 3V VOH=2.7V (1/2 bias) -15 -30 ¾mA IOL3 Common 0~3 Output Sink Current 3V VOL=0.45V (1/3 bias) 100 180 ¾mA IOH3 Common 0~3 Output Source Current 3V VOH=4.05V (1/3 bias) -100 -180 ¾mA IOL4 Segment 0~19 Output Sink Current 3V VOL=0.45V (1/3 bias) 20 40 ¾mA IOH4 Segment 0~19 Output Source Current 3V VOH=4.05V (1/3 bias) -20 -40 ¾mA IOL5 RC Oscillation Output Sink Current 3V VOL=0.3V 510 ¾ mA IOH5 RC Oscillation Output Source Current 3V VOH=2.7V -5 -10 ¾ mA RPH Pull-high Resistance of I/O Ports and INT 3V ¾ 40 60 80 k W Note: *R stands for the resistance of RC type A/D converter *f stands for the frequency of RC type A/D converter HT47C20 Rev. 1.60 6 July 26, 2002 |
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