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HT46R71D Datasheet(PDF) 4 Page - Holtek Semiconductor Inc |
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HT46R71D Datasheet(HTML) 4 Page - Holtek Semiconductor Inc |
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4 / 46 page  Pin Name I/O Options Description DOPAN, DOPAP, DOPAO, DCHOP AI/AO ¾ Dual Slope converter pre-stage OPA related pins. DOPAN is OPA Negative input pin, DOPAP is OPA Positive input pin, DOPAO is OPA output pin and the DCHOP is OPA Chopper pins. DSRR, DSRC, DSCC AI/AO ¾ Dual slope AD converter main function RC circuit. DSRR is the input or reference signal, DSRC is the Integrator negative input, and DSCC is the comparator negative input. OSC1 OSC2 I O External RC OSC1, OSC2 are connected to an external RC network for the internal system clock. For external RC system clock operation, OSC2 is an out- put pin for 1/4 system clock. RES I ¾ Schmitt trigger reset input, active low VDD ¾¾ Positive power supply VSS ¾¾ Negative power supply, ground AVSS ¾¾ Analog negative power supply, ground Absolute Maximum Ratings Supply Voltage ...........................VSS -0.3V to VSS+6.0V Storage Temperature ............................ -50°Cto125°C Input Voltage..............................VSS -0.3V to VDD+0.3V Operating Temperature........................... -40°Cto85°C Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil- ity. D.C. Characteristics Ta=25 °C Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions VDD Operating Voltage ¾ fSYS=4MHz 2.2 ¾ 5.5 V IDD1 Operating Current (External RC OSC) 3V No load, ADC off, fSYS=2MHz ¾ 0.5 1 mA 5V ¾ 1.5 3 mA IDD2 Operating Current (External RC OSC) 3V No load, ADC off, fSYS=4MHz ¾ 0.8 1.5 mA 5V ¾ 2.5 4 mA IDD3 Operating Current (External RC OSC) 5V No load, ADC on, fSYS=4MHz, ADCCLK=125kHz ¾ 35 mA ISTB1 Standby Current (WDT Disable) 3V No load, system HALT, LCD off at HALT ¾¾ 1 mA 5V ¾¾ 2 mA ISTB2 Standby Current (WDT Enable) 3V No load, system HALT, LCD off at HALT, ADC off ¾ 2.5 5 mA 5V ¾ 815 mA ISTB3 Standby Current (WDT Disable Internal RC 12kHz OSC ON) 3V No load, system HALT, LCD off at HALT, ADC off ¾ 25 mA 5V ¾ 610 mA ISTB4 Standby Current (WDT Disable Internal RC 12kHz OSC ON) 3V No load, system HALT, LCD on at HALT, 1/2 bias, VLCD=VDD ¾ 17 30 mA 5V ¾ 34 60 mA HT46R71D Rev. 1.00 4 January 9, 2006 |
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