HT66F0174 datasheet(2/115 Pages) HOLTEK

2 / 115 page

Rev. 1.00

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Rev. 1.00

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HT66F0172/HT66F0174

Enhanced A/D Flash 8-Bit MCU

Table of Contents

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

CPU Feat�res ......................................................................................................................... 6

Periphera� Feat�res................................................................................................................. 6

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

Selection Table................................................................................................. 7

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

Pin Assignment................................................................................................ 8

Pin Descriptions .............................................................................................. 9

Absolute Maximum Ratings...........................................................................11

D.C. Characteristics........................................................................................11

A.C. Characteristics....................................................................................... 13

A/D Converter Characteristics...................................................................... 14

LVD&LVR Electrical Characteristics ............................................................ 15

Power on Reset Electrical Characteristics.................................................. 15

System Architecture...................................................................................... 16

C�ocking and Pipe�ining......................................................................................................... 16

Program Co�nter................................................................................................................... 17

Stack ..................................................................................................................................... 18

Arithmetic and Logic Unit – ALU ........................................................................................... 18

Flash Program Memory................................................................................. 19

Str�ct�re................................................................................................................................ 19

Specia� Vectors ..................................................................................................................... 19

Look-�p Tab�e........................................................................................................................ 19

Tab�e Program Examp�e........................................................................................................ �0

In Circ�it Programming ......................................................................................................... �1

On-Chip Deb�g S�pport – OCDS ......................................................................................... ��

RAM Data Memory......................................................................................... 22

Str�ct�re................................................................................................................................ ��

Special Function Register Description........................................................ 24

Indirect Addressing Registers – IAR0� IAR1 ......................................................................... �4

Memor� Pointers – MP0� MP1 .............................................................................................. �4

Bank Pointer – BP................................................................................................................. �5

Acc�m��ator – ACC............................................................................................................... �5

Program Co�nter Low Register – PCL.................................................................................. �5

Look-�p Tab�e Registers – TBLP� TBHP� TBLH..................................................................... �5

Stat�s Register – STATUS.................................................................................................... �6

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