HT45F23 datasheet(2/152 Pages) HOLTEK

2 / 152 page

Table of Contents

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

CPU Features ........................................................................................................7

Peripheral Features ................................................................................................7

General Description ............................................................................8

Block Diagram .....................................................................................9

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

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

Absolute Maximum Ratings .............................................................12

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

A.C. Characteristics ..........................................................................16

OP Amplifier Electrical Characteristics...........................................17

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

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

LDO 3.3V ............................................................................................18

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

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

Clocking and Pipelining ........................................................................................20

Program Counter..................................................................................................21

Stack ....................................................................................................................21

Arithmetic and Logic Unit

- ALU...........................................................................22

Flash Program Memory ........................................................................................22

Structure...............................................................................................................22

Special Vectors.....................................................................................................22

Look-up Table.......................................................................................................24

Table Program Example .......................................................................................25

In Circuit Programming ....................................................................26

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

Structure...............................................................................................................27

Special Function Registers ...................................................................................28

Indirect Addressing Registers

- IAR0, IAR1 .........................................................28

Memory Pointers

- MP0, MP1..............................................................................29

Bank Pointer

- BP ................................................................................................30

Accumulator

- ACC..............................................................................................30

Rev. 1.20

September 15, 2011

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HT45F23 Datasheet(PDF) 2 Page - Holtek Semiconductor Inc

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