ST72321BR9-AUTO View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST72321BR9-AUTO

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

STMicroelectronics 

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Introduction

1

Introduction

ST72321Bxxx-Auto

1.1

Description

The ST72F321B-Auto Flash and ST72321B-Auto ROM devices are members of the ST7

microcontroller family designed for mid-range automotive applications. Different package

options offer up to 48 I/O pins.

All devices are based on a common industry-standard 8-bit core, featuring an enhanced

instruction set and are available with Flash or ROM program memory. The ST7 family

architecture offers both power and flexibility to software developers, enabling the design of

highly efficient and compact application code.

The on-chip peripherals include an A/D converter, a PWM autoreload timer, two general

purpose timers, a watchdog timer, a real-time base main clock controller, I2C, SPI and SCI

interfaces.

For power economy, the microcontroller can switch dynamically into Wait, Slow, Active Halt

or Halt mode when the application is in idle or standby state.

Typical applications include

● all types of car body applications such as window lift, DC motor control, rain sensors

● safety microcontroller in airbag and engine management applications

● auxiliary functions in car radios

Related documentation

Migrating applications from ST72511/311/314 to ST72521/321/324 (AN1131)

18/247

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