汽车级 ST72325AR9 8位微控制器为汽车的16至60KB Flash,ADC,5定时器的SPI,SCI,I²C接口LQFP-64封装
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.
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
The devices feature an on-chip Debug Module (DM) to support in-circuit debugging (ICD).
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
ST72325AR9 订购型号:
| Reference | Program memory | RAM (stack) | Package | Voltage range | Temp. range |
| ST72325K4 Automotive |
Flash 16 Kbytes | 512 (256) bytes | LQFP32 | 3.8 to 5.5V | up to -40 to 125°C |
| ST72325K6 Automotive |
Flash 32 Kbytes | 1024 (256) bytes | |||
| ST72325J4 Automotive |
Flash 16 Kbytes | 512 (256) bytes | LQFP44 | ||
| ST72325J6 Automotive |
Flash 32 Kbytes | 1024 (256) bytes | |||
| ST72325J7 Automotive |
Flash 48 Kbytes | 1536 (256) bytes | |||
| ST72325J9 Automotive |
Flash 60 Kbytes | 2048 (256) bytes | |||
| ST72325AR6 Automotive |
Flash 32 Kbytes | 1024 (256) bytes | LQFP64 10x10 |
||
| ST72325AR7 Automotive |
Flash 48 Kbytes | 1536 (256) bytes | |||
| ST72325AR9 Automotive |
Flash 60 Kbytes | 2048 (256) bytes | |||
| ST72325R6 Automotive |
Flash 32 Kbytes | 1024 (256) bytes | LQFP64 14x14 |
||
| ST72325R7 Automotive |
Flash 48 Kbytes | 1536 (256) bytes | |||
| ST72325R9 Automotive |
Flash 60 Kbytes | 2048 (256) bytes |
ST72325AR9 产品特点
- Memories
—16 to 60 Kbyte dual voltage High Density Flash (HDFlash) with readout protection capability. In-application programming and in-circuit programming for HDFlash devices
—512 to 2048 bytes 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
—Clock security system - Interrupt management
—Nested interrupt controller
—14 interrupt vectors plus TRAP and RESET
—Top Level Interrupt (TLI) pin on 64-pin devices
—9/6 external interrupt lines (on 4 vectors) - 1 analog peripheral (low current coupling)
—10-bit ADC with up to 16 input ports - 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 - Instruction set
—8-bit data manipulation
—63 basic instructions
—17 main addressing modes
—8x8 unsigned multiply instruction - Development tools
—Full hardware/software development package
—DM (debug module)
ST72325AR9 技术支持与电子电路设计开发资源下载
- ST 意法8位汽车微控制器ST72325AR9 数据手册 DataSheet 下载.pdf
- ST 意法微控制器选型指南.pdf
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