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HT56R65

TinyPower™ A/D Type with LCD 8-Bit OTP MCU

Holtek Semiconductor 

HT56R62/HT56R65

HT56R642/HT56R644/HT56R654/HT56R656

TinyPowerTM A/D Type with LCD 8-Bit OTP MCU

Table of Contents

Features............................................................................................................. 6

General Description.......................................................................................... 7

Selection Table.................................................................................................. 7

Block Diagram................................................................................................... 8

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

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

Absolute Maximum Ratings........................................................................... 13

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

A.C. Characteristics........................................................................................ 19

ADC Characteristics....................................................................................... 20

Power-on Reset Characteristics.................................................................... 20

System Architecture....................................................................................... 21

Clocking and Pipelining.......................................................................................................... 21

Program Counter.................................................................................................................... 22

Stack...................................................................................................................................... 23

Arithmetic and Logic Unit − ALU............................................................................................ 24

Program Memory............................................................................................ 25

Structure................................................................................................................................. 25

Special Vectors...................................................................................................................... 26

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

Table Program Example......................................................................................................... 28

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

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

General Purpose Data Memory............................................................................................. 29

Special Purpose Data Memory.............................................................................................. 30

Display Memory..................................................................................................................... 32

Special Function Registers............................................................................ 32

Indirect Addressing Registers − IAR0, IAR1.......................................................................... 32

Memory Pointers − MP0, MP1............................................................................................... 33

Bank Pointer − BP.................................................................................................................. 34

Accumulator − ACC................................................................................................................ 34

Program Counter Low Register − PCL................................................................................... 34

Look-up Table Registers − TBLP, TBLH................................................................................. 35

Status Register − STATUS..................................................................................................... 35

Interrupt Control Registers..................................................................................................... 36

Timer/Event Counter Registers.............................................................................................. 36

Input/Output Ports and Control Registers.............................................................................. 36

Pulse Width Modulator Registers........................................................................................... 36

A/D Converter Registers – ADRL, ADRH, ADCR, ACSR....................................................... 36

Rev. 1.30

2

March 6, 2013

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