HT45F4M datasheet(4/138 Pages) HOLTEK

4 / 138 page

Rev. 1.10

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Rev. 1.10

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HT45F4M

Lithium Battery Backup Power ASSP MCU

HT45F4M

Lithium Battery Backup Power ASSP MCU

Standard Type TM – STM .............................................................................. 58

Standa�d TM Ope�ation......................................................................................................... �8

Standa�d T�pe TM Registe� Desc�iption ............................................................................... �8

Standa�d T�pe TM Ope�ating Modes .................................................................................... 6�

Periodic Type TM – PTM................................................................................ 72

Pe�iodic TM Ope�ation .......................................................................................................... 7�

Pe�iodic T�pe TM Registe� Desc�iption................................................................................. 7�

Pe�iodic T�pe TM Ope�ation Modes...................................................................................... 77

Analog to Digital Converter .......................................................................... 86

A/D Ove�view ........................................................................................................................ 86

A/D Conve�te� Registe� Desc�iption...................................................................................... 86

A/D Conve�te� Data Registe�s – ADRL� ADRH ..................................................................... 87

A/D Conve�te� Cont�ol Registe�s – ADCR0� ADCR1� ACERL............................................... 87

A/D Ope�ation ....................................................................................................................... 91

A/D Inp�t Pins ....................................................................................................................... 9�

S�mma�� of A/D Conve�sion Steps....................................................................................... 9�

P�og�amming Conside�ations................................................................................................ 94

A/D T�ansfe� F�nction ........................................................................................................... 94

A/D P�og�amming Example................................................................................................... 9�

Complementary PWM Output....................................................................... 97

Over Current and Voltage Protection .......................................................... 98

OCP/OVP Registe� ............................................................................................................... 99

OCP Operational Amplifier Offset Cancellation Function.................................................... 104

OCP Compa�ato� Offset Cancellation F�nction .................................................................. 104

OVP Compa�ato� Offset Cancellation F�nction................................................................... 10�

Interrupts...................................................................................................... 105

Inte��pt Registe�s............................................................................................................... 10�

Inte��pt Registe� Contents................................................................................................. 106

Inte��pt Ope�ation...............................................................................................................111

Exte�nal Inte��pt..................................................................................................................11�

OVP Inte��pt .......................................................................................................................11�

OCP Inte��pt .......................................................................................................................11�

M�lti-f�nction Inte��pt .........................................................................................................114

A/D Conve�te� Inte��pt........................................................................................................114

Time Base Inte��pts............................................................................................................114

EEPROM Inte��pt ...............................................................................................................116

LVD Inte��pt ........................................................................................................................116

TM Inte��pts........................................................................................................................116

Inte��pt Wake-�p F�nction..................................................................................................117

P�og�amming Conside�ations...............................................................................................117

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