ST72325XXX Datasheet, PDF (18/243 Pages) STMicroelectronics – SCI asynchronous serial interface

Description
1
Description
ST72325xxx-Auto
The ST72325-Auto devices are members of the ST7 microcontroller family designed for
mid-range automotive applications running from 3.8 to 5.5V. Different package options offer
up to 48 I/O pins.
They are derivatives of the ST72321 and ST72324 devices, with enhanced characteristics
and robust Clock Security System.
All devices are based on a common industry-standard 8-bit core, featuring an enhanced
instruction set and are available with Flash 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, 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.
t(s) ^{Table 2. Device summary}
c Reference
Program memory
u _{ST72325K4-Auto}
rod ^{ST72325K6-Auto}
Flash 16 Kbytes
Flash 32 Kbytes
P ST72325J4-Auto
te ^{ST72325J6-Auto}
le ^{ST72325J7-Auto}
Flash 16 Kbytes
Flash 32 Kbytes
Flash 48 Kbytes
o _{ST72325J9-Auto}
bs ST72325AR6-Auto
O ST72325AR7-Auto
Flash 60 Kbytes
Flash 32 Kbytes
Flash 48 Kbytes
- _{ST72325AR9-Auto}
t(s) ^{ST72325R6-Auto}
ST72325R7-Auto
Flash 60 Kbytes
Flash 32 Kbytes
Flash 48 Kbytes
uc _{ST72325R9-Auto}
Flash 60 Kbytes
RAM (stack)
512 (256) bytes
1024 (256) bytes
512 (256) bytes
1024 (256) bytes
1536 (256) bytes
2048 (256) bytes
1024 (256) bytes
1536 (256) bytes
2048 (256) bytes
1024 (256) bytes
1536 (256) bytes
2048 (256) bytes
Voltage range Temp. range Package
LQFP32
3.8 to 5.5V
up to
LQFP44
-40 to 125°C
LQFP64
10x10
3.8 to 5.5V
up to
LQFP64
-40 to 125°C 14x14
rod Typical applications include
P _{● all types of car body applications such as window lift, DC motor control, rain sensors}
te● safety microcontroller in airbag and engine management applications
le● auxiliary functions in car radios
so The devices feature an on-chip Debug Module (DM) to support in-circuit debugging (ICD).
Ob ^{For a description of the DM registers, refer to the ST7 ICC Protocol Reference Manual.}
Main differences with ST72321:
● LQFP32 package
● Clock Security System
● Internal RC, readout protection, LVD and PLL without limitations
● Negative current injection not allowed on I/O port PB0 (instead of PC6)
● External interrupts have Exit from Active Halt mode capability
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Doc ID 13770 Rev 3