HT45F23A datasheet(2/148 Pages) HOLTEK

2 / 148 page

Rev. 1.00

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Rev. 1.00

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HT45F23A

8-Bit Flash MCU with Op Amps & Comparators

HT45F23A

8-Bit Flash MCU with Op Amps & Comparators

Table of Contents

Features............................................................................................................ 7

CPU Feat�res ......................................................................................................................... 7

Periphera� Feat�res................................................................................................................. 8

General Description......................................................................................... 9

Block Diagram................................................................................................ 10

Pin Assignment...............................................................................................11

Pin Description ...............................................................................................11

Absolute Maximum Ratings.......................................................................... 14

D.C. Characteristics....................................................................................... 14

A.C. Characteristics....................................................................................... 17

OP Amplifier Electrical Characteristics ....................................................... 18

Comparator Electrical Characteristics ........................................................ 18

LDO 2.4V......................................................................................................... 18

LDO 3.3V......................................................................................................... 19

Power-on Reset Characteristics................................................................... 19

System Architecture ...................................................................................... 20

C�ocking and Pipe�ining......................................................................................................... �0

Program Co�nter................................................................................................................... �1

Stack ..................................................................................................................................... ��

Arithmetic and Logic Unit – ALU ........................................................................................... ��

Flash Program Memory................................................................................. 23

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

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

Look-�p Tab�e........................................................................................................................ �4

Tab�e Program Examp�e........................................................................................................ �5

In Circ�it Programming ......................................................................................................... �6

RAM Data Memory ......................................................................................... 27

Str�ct�re................................................................................................................................ �7

Specia� F�nction Registers ................................................................................................... �8

Indirect Addressing Registers – IAR0� IAR1 ......................................................................... �8

Memor� Pointers – MP0� MP1 .............................................................................................. �9

Bank Pointer BP.................................................................................................................... �0

Acc�m��ator – ACC............................................................................................................... �0

Program Co�nter Low Register – PCL.................................................................................. �0

Look-�p Tab�e Registers – TBLP� TBLH................................................................................ �0

Stat�s Register – STATUS .................................................................................................... �1

EEPROM Data Memory.................................................................................. 32

EEPROM Data Memor� Str�ct�re ........................................................................................ ��

EEPROM Registers .............................................................................................................. ��

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