ST72321BXXX-AUTO View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72321BXXX-AUTO

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

STMicroelectronics 

ST72321Bxxx-Auto

8-bit MCU for automotive with 32 to 60 Kbyte Flash/ROM,

ADC, 5 timers, SPI, SCI, I2C interface

Features

Memories

■ 32 to 60 Kbyte dual voltage High Density Flash

(HDFlash) ROM with readout protection

capability. In-application programming and in-

circuit programming for HDFlash devices

■ 1 to 2 Kbyte RAM

■ HDFlash endurance: 100 cycles, data retention

20 years

Clock, reset and supply management

■ Enhanced low voltage supervisor (LVD) for

main supply and auxiliary voltage detector

(AVD) with interrupt capability

■ Clock sources: crystal/ceramic resonator

oscillators, internal RC oscillator and bypass

for external clock

■ PLL for 2x frequency multiplication

■ 4 power saving modes: Halt, Active Halt, Wait

and Slow

Interrupt management

■ Nested interrupt controller

■ 14 interrupt vectors plus TRAP and RESET

■ Top Level Interrupt (TLI) pin on 64-pin devices

■ 15/9 external interrupt lines (on 4 vectors)

1 analog peripheral (low current coupling)

■ 10-bit ADC with up to 16 input ports

LQFP64

10 x 10

LQFP64

14 x 14

LQFP44

10 x 10

Up to 48 I/O ports

■ 48/32/24 multifunctional bidirectional I/O lines

■ 34/22/17 alternate function lines

■ 16/12/10 high sink outputs

5 timers

■ Main clock controller with Real-time base,

Beep and Clock-out capabilities

■ Configurable watchdog timer

■ Two 16-bit timers with 2 input captures, 2

output compares, external clock input on 1

timer, PWM and pulse generator modes

■ 8-bit PWM auto-reload timer with 2 input

captures, 4 PWM outputs, output compare and

time base interrupt, external clock with event

detector

3 communications interfaces

■ SPI synchronous serial interface

■ SCI asynchronous serial interface

■ I2C multimaster interface

Development tools

■ Full HW/SW development pkg, ICT capability

Table 1. Device summary

Device

Prog. memory

ST72321BR9-Auto

ST72321BAR9-Auto

ST72321BJ9-Auto

ST72321BR7-Auto

ST72321BAR7-Auto

ST72321BJ7-Auto

ST72321BR6-Auto

ST72321BAR6-Auto

ST72321BJ6-Auto

Flash/ROM

60 Kbytes

Flash/ROM

48 Kbytes

Flash/ROM

32 Kbytes

RAM (stack)

2048 (256)

bytes

1536 (256)

bytes

1024 (256)

bytes

Oper. voltage Temp. range

3.8 to 5.5V

Up to

-40 to 125°C

Package

LQFP64

LQFP44

LQFP64

LQFP44

LQFP64

LQFP44

14x14

10x10

10x10

14x14

10x10

10x10

14x14

10x10

10x10

October 2007

Rev 1

1/247

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