ST72321BXXX-AUTO datasheet(10/247 Pages) STMICROELECTRONICS

Part #	ST72321BXXX-AUTO

Description	8-bit MCU for automotive with 32 to 60 Kbyte Flash/ROM, ADC, 5 timers, SPI, SCI, I2C interface

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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10 / 247 page

Contents

ST72321Bxxx-Auto

10/247

19.8

I/O port pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

19.8.1

General characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207

19.8.2

Output driving current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208

19.9

Control pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

19.9.1

Asynchronous RESET pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

19.9.2

ICCSEL/VPP pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

19.10 Timer peripheral characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

19.11 Communication interface characteristics . . . . . . . . . . . . . . . . . . . . . . . . 215

19.11.1

SPI (serial peripheral interface) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

19.11.2

I2C - inter IC control interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218

19.12 10-bit ADC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220

19.12.1

Analog power supply and reference pins . . . . . . . . . . . . . . . . . . . . . . . 221

19.12.2

General PCB design guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

19.12.3

ADC accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

20

Package characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224

20.1

Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224

20.2

Thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

20.3

Soldering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

20.3.1

Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227

21

Device configuration and ordering information . . . . . . . . . . . . . . . . . 228

21.1

Flash devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

21.1.1

Flash configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228

21.1.2

Flash ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231

21.2

ROM device ordering information and transfer of customer code . . . . . 232

21.3

Development tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

21.3.1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

21.3.2

Evaluation tools and starter kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

21.3.3

Development and debugging tools . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

21.3.4

Programming tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

21.3.5

Socket and emulator adapter information . . . . . . . . . . . . . . . . . . . . . . 238

21.4

ST7 application notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238

22

Known limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

22.1

All Flash and ROM devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

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