HT66F40 datasheet(2/244 Pages) HOLTEK

2 / 244 page

Table of Contents

Technical Document ...........................................................................8

Features ...............................................................................................8

CPU Features ........................................................................................................8

Peripheral Features ................................................................................................8

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

Selection Table ....................................................................................9

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

Pin Assignment .................................................................................10

Pin Description ..................................................................................14

HT68F20 ..............................................................................................................14

HT68F30 ..............................................................................................................15

HT68F40 ..............................................................................................................16

HT68F50 ..............................................................................................................17

HT68F60 ..............................................................................................................18

Absolute Maximum Ratings .............................................................20

D.C. Characteristics ..........................................................................20

A.C. Characteristics ..........................................................................22

Comparator Electrical Characteristics ............................................23

Power-on Reset Characteristics ......................................................24

System Architecture .........................................................................25

Clocking and Pipelining ........................................................................................25

Program Counter..................................................................................................26

Stack ....................................................................................................................26

Arithmetic and Logic Unit - ALU............................................................................26

Flash Program Memory ....................................................................27

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

Special Vectors.....................................................................................................27

Look-up Table.......................................................................................................27

Table Program Example .......................................................................................27

In Circuit Programming.........................................................................................28

RAM Data Memory.............................................................................29

Structure...............................................................................................................29

Contents

Rev. 1.60

October 24, 2011

HT66F40 Datasheet(PDF) 2 Page - Holtek Semiconductor Inc