HT67F488 datasheet(2/171 Pages) HOLTEK

2 / 171 page

Rev. 1.60

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HT67F488/HT67F489

TinyPowerTM A/D Flash MCU with LCD & EEPROM

Table of Contents

Features............................................................................................................ 6

CPU Featu�es ......................................................................................................................... 6

Pe�iphe�al Featu�es................................................................................................................. 6

General Description......................................................................................... 7

Selection Table................................................................................................. 8

Block Diagram.................................................................................................. 8

Pin Assignment................................................................................................ 9

Pin Description .............................................................................................. 10

Absolute Maximum Ratings.......................................................................... 13

D.C. Characteristics....................................................................................... 13

A.C. Characteristics....................................................................................... 15

A/D Converter Electrical Characteristics..................................................... 16

LVD & LVR Electrical Characteristics .......................................................... 16

Power on Reset Characteristics................................................................... 17

System Architecture...................................................................................... 18

Clocking and Pipelining......................................................................................................... 18

P�og�a� Counte�................................................................................................................... 19

Stack ..................................................................................................................................... �0

A�ith�etic and Logic Unit – ALU ........................................................................................... �0

Flash Program Memory................................................................................. 21

St�uctu�e................................................................................................................................ �1

Special Vecto�s ..................................................................................................................... �1

Look-up Ta�le........................................................................................................................ ��

Ta�le P�og�a� Exa�ple........................................................................................................ ��

In Ci�cuit P�og�a��ing – ICP ............................................................................................... �3

On-Chip De�ug Suppo�t – OCDS ......................................................................................... �4

RAM Data Memory......................................................................................... 25

St�uctu�e................................................................................................................................ �5

Data Me�o�y Add�essing...................................................................................................... �6

Gene�al Pu�pose Data Me�o�y ........................................................................................... �6

Special Pu�pose Data Me�o�y ............................................................................................ �6

Special Function Register Description........................................................ 28

Indi�ect Add�essing Registe� – IAR0� IAR1� IAR� ................................................................. �8

Me�o�y Pointe�s – MP0� MP1L� MP1H� MP�L� MP�H......................................................... �8

Accu�ulato� – ACC............................................................................................................... 30

P�og�a� Counte� Low Registe� – PCL ................................................................................. 30

Look-up Ta�le Registe�s – TBLP� TBHP� TBLH .................................................................... 31

Status Registe� – STATUS ................................................................................................... 31

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