HT48R002 datasheet(2/71 Pages) HOLTEK

2 / 71 page

Rev. 1.11

April 11, 2017

Rev. 1.11

April 11, 2017

HT48R002/HT48R003

Cost-Effective I/O 8-Bit OTP MCU

HT48R002/HT48R003

Cost-Effective I/O 8-Bit OTP MCU

Table of Contents

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

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

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

General Description ........................................................................................ 5

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

Block Diagram.................................................................................................. 6

Pin Assignment................................................................................................ 6

Pin Description ................................................................................................ 7

HT48R002............................................................................................................................... 7

HT48R003............................................................................................................................... 8

Absolute Maximum Ratings............................................................................ 8

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

A.C. Characteristics......................................................................................... 9

Power-on Reset Characteristics................................................................... 10

System Architecture...................................................................................... 10

Clocking and Pipelining......................................................................................................... 10

Program Counter – PC...........................................................................................................11

Stack ..................................................................................................................................... 12

Arithmetic and Logic Unit – ALU ........................................................................................... 12

Program Memory ........................................................................................... 13

Structure................................................................................................................................ 13

Special Vectors ..................................................................................................................... 13

Look-up Table........................................................................................................................ 14

Table Program Example........................................................................................................ 14

RAM Data Memory......................................................................................... 16

Structure................................................................................................................................ 16

Special Purpose Data Memory ............................................................................................. 17

Special Function Registers........................................................................... 18

Indirect Addressing Registers – IAR0, IAR1 ......................................................................... 18

Memory Pointers – MP0, MP1 .............................................................................................. 18

Accumulator – ACC............................................................................................................... 19

Program Counter Low Register – PCL.................................................................................. 19

Status Register – STATUS.................................................................................................... 19

System Control Registers – CTRL0, CTRL1......................................................................... 21

Oscillator ........................................................................................................ 22

System Oscillator Overview .................................................................................................. 22

System Clock Configurations................................................................................................ 22

Internal RC Oscillator – HIRC ............................................................................................... 22

Internal 12kHz Oscillator – LIRC........................................................................................... 22

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