HT46R004 datasheet(2/84 Pages) HOLTEK

2 / 84 page

Rev. 1.30

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Rev. 1.30

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HT46R004

Cost-Effective A/D 8-Bit OTP MCU

Table of Contents

Features............................................................................................................ 5

CPU Feat��es ......................................................................................................................... 5

Pe�iphe�al Feat��es................................................................................................................. 5

General Description......................................................................................... 5

Block Diagram.................................................................................................. 6

Pin Assignment................................................................................................ 6

Pin Description ................................................................................................ 7

Absolute Maximum Ratings............................................................................ 8

D.C. Characteristics......................................................................................... 8

A.C. Characteristics......................................................................................... 9

A/D Converter Characteristics........................................................................ 9

Power-on Reset Characteristics................................................................... 10

System Architecture...................................................................................... 10

Clocking and Pipelining......................................................................................................... 10

P�og�am Co�nte� – PC...........................................................................................................11

Stack ..................................................................................................................................... 1�

A�ithmetic and Logic Unit – ALU ........................................................................................... 1�

Program Memory ........................................................................................... 13

St��ct��e................................................................................................................................ 13

Special Vecto�s ..................................................................................................................... 13

Look-�p Table........................................................................................................................ 14

Table P�og�am Example........................................................................................................ 14

RAM Data Memory......................................................................................... 16

St��ct��e................................................................................................................................ 1�

Special P��pose Data Memo�� ............................................................................................. 17

Special Function Registers........................................................................... 18

Indi�ect Add�essing Registe�s – IAR0� IAR1 ......................................................................... 18

Memo�� Pointe�s – MP0� MP1 .............................................................................................. 18

Indi�ect Add�essing P�og�am Example.................................................................................. 1�

Acc�m�lato� – ACC............................................................................................................... 1�

P�og�am Co�nte� Low Registe� – PCL.................................................................................. 1�

Stat�s Registe� – STATUS.................................................................................................... �0

S�stem Cont�ol Registe�s – CTRL0...................................................................................... �1

Oscillator ........................................................................................................ 22

S�stem Oscillato� Ove�view .................................................................................................. ��

System Clock Configurations................................................................................................ ��

Inte�nal RC Oscillato� – HIRC ............................................................................................... ��

Inte�nal 1�kHz Oscillato� – LIRC........................................................................................... ��

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