AT89C51CC02CA-RATUM datasheet(152/156 Pages) ATMEL

152 / 156 page

Table of Contents

Table of

Contents

Features ................................................................................................. 1

Description ............................................................................................ 2

Block Diagram ....................................................................................... 2

Pin Configurations ................................................................................ 3

Pin Description...................................................................................... 5

I/O Configurations ................................................................................................. 7

Port Structure ....................................................................................................... 7

Read-Modify-Write Instructions ............................................................................ 8

Quasi Bi-directional Port Operation ...................................................................... 8

SFR Mapping ....................................................................................... 10

Clock .................................................................................................... 16

Description ......................................................................................................... 16

Register .............................................................................................................. 19

Power Management ............................................................................ 20

Reset Pin .............................................................................................. 20

At Power-up (cold reset)..................................................................................... 20

During a Normal Operation (Warm Reset) ......................................................... 21

Watchdog Reset................................................................................................. 21

Reset Recommendation to Prevent Flash Corruption ......................................... 22

Idle Mode............................................................................................................ 22

Power-down Mode ............................................................................................. 22

Registers ............................................................................................................. 25

Data Memory ....................................................................................... 26

Internal Space .................................................................................................... 26

Dual Data Pointer ............................................................................................... 28

Registers ............................................................................................................ 29

EEPROM Data Memory ....................................................................... 31

Write Data in the Column Latches...................................................................... 31

Programming ...................................................................................................... 31

Read Data .......................................................................................................... 31

Examples............................................................................................................ 32

Registers ............................................................................................................ 33

AT89C51CC02CA-RATUM Datenblatt(PDF) 152 Page - ATMEL Corporation