HT45F2020 datasheet(2/85 Pages) HOLTEK

2 / 85 page

Rev. 1.00

April 11, 2017

Rev. 1.00

April 11, 2017

HT45F2020/HT45F2022

Sound Effect Generator Flash MCU

HT45F2020/HT45F2022

Sound Effect Generator Flash MCU

Table of Contents

Features................................................................................................................ 5

CPU Features ..............................................................................................................................5

Peripheral Features......................................................................................................................5

General Description............................................................................................. 6

Selection Table..................................................................................................... 6

Block Diagram...................................................................................................... 7

Pin Assignment.................................................................................................... 7

Pin Description .................................................................................................... 8

Absolute Maximum Ratings................................................................................ 9

D.C. Characteristics............................................................................................. 9

A.C. Characteristics........................................................................................... 10

Shunt Regulator Electrical Characteristics – for HT45F2020 only................ 11

Power-on Reset Characteristics....................................................................... 12

System Architecture.......................................................................................... 12

Clocking and Pipelining..............................................................................................................12

Program Counter........................................................................................................................13

Stack ..........................................................................................................................................14

Arithmetic and Logic Unit – ALU ................................................................................................14

Flash Program Memory..................................................................................... 15

Structure.....................................................................................................................................15

Special Vectors ..........................................................................................................................15

Look-up Table.............................................................................................................................15

Table Program Example.............................................................................................................16

In Circuit Programming – ICP ....................................................................................................17

On-Chip Debug Support – OCDS ..............................................................................................18

Data Memory ...................................................................................................... 18

Structure.....................................................................................................................................18

General Purpose Data Memory .................................................................................................18

Special Purpose Data Memory ..................................................................................................19

Special Function Register Description............................................................ 20

Indirect Addressing Registers – IAR0, IAR1 ..............................................................................20

Memory Pointers – MP0, MP1 ...................................................................................................20

Accumulator – ACC....................................................................................................................21

Program Counter Low Register – PCL.......................................................................................21

Look-up Table Registers – TBLP, TBLH.....................................................................................21

Status Register – STATUS.........................................................................................................21

Oscillators .......................................................................................................... 23

Oscillator Overview ....................................................................................................................23

System Clock Configurations ....................................................................................................23

HT45F2020 数据表(PDF) 2 Page - Holtek Semiconductor Inc

HT45F2020 数据表(HTML) 2 Page - Holtek Semiconductor Inc

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