HT45F23A View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
Manufacturer
HT45F23A Datasheet PDF : 148 Pages
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HT45F23A
8-Bit Flash MCU with Op Amps & Comparators
Peripheral Clock Output................................................................................. 97
Peripheral Clock Operation.................................................................................................... 97
SCOM Function for LCD................................................................................. 98
LCD Operation....................................................................................................................... 98
LCD Bias Control................................................................................................................... 99
LDO Function....................................................................................................................... 100
Operational Amplifiers................................................................................. 101
Operational Amplifier Registers............................................................................................ 101
Operational Amplifier Operation........................................................................................... 104
Operational Amplifier Functions........................................................................................... 104
Comparators................................................................................................. 107
Comparator Operation......................................................................................................... 107
Comparator Registers.......................................................................................................... 107
Comparator Functions.......................................................................................................... 109
Interrupts........................................................................................................111
Interrupt Register..................................................................................................................111
Interrupt Operation................................................................................................................112
Interrupt Priority.....................................................................................................................112
External Interrupt...................................................................................................................115
External Peripheral Interrupt.................................................................................................117
Timer/Event Counter Interrupt...............................................................................................117
SPI/I2C Interface Interrupt.....................................................................................................117
Multi-function Interrupt..........................................................................................................118
A/D Interrupt..........................................................................................................................118
Time Base Interrupt...............................................................................................................118
Comparator Interrupt.............................................................................................................119
EEPROMInterrupt................................................................................................................ 120
LVD Interrupt........................................................................................................................ 120
Interrupt Wake-up Function.................................................................................................. 120
Programming Considerations............................................................................................... 120
Buzzer............................................................................................................ 121
Power Down Mode and Wake-up................................................................. 123
Entering the IDLE or SLEEP Mode...................................................................................... 123
Standby Current Considerations.......................................................................................... 123
Wake-up............................................................................................................................... 123
Low Voltage Detector – LVD........................................................................ 124
LVD Register........................................................................................................................ 124
LVD Operation...................................................................................................................... 125
Voice Output.................................................................................................. 126
Voice Control........................................................................................................................ 126
Audio Output and Volume Control – DAL, DAH, DACTRL .................................................. 126
Configuration Options.................................................................................. 127
Rev. 1.00
5
July 03, 2012
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