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| 型号： | STM8AF52A8TCU |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP48 |
| 封装： | 7 X 7 MM, ROHS COMPLIANT, LQFP-48 |
| 文件页数： | 31/120页 |
| 文件大小： | 2236K |
| 代理商： | STM8AF52A8TCU |
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Product overview
STM8AF52/62xx, STM8AF51/61xx
Doc ID 14395 Rev 7
byte area. This keyword must be entered via the SWIM interface to temporarily unlock the
device.
If desired, the temporary unlock mechanism can be permanently disabled by the user
throughOPT6/NOPT6 option bytes.
5.5
Clock controller
The clock controller distributes the system clock coming from different oscillators to the core
and the peripherals. It also manages clock gating for low-power modes and ensures clock
robustness.
5.5.1
Features
●
Clock sources
–
Internal 16 MHz and 128 kHz RC oscillators
–
Crystal/resonator oscillator
–
External clock input
●
Reset: After reset the microcontroller restarts by default with an internal 2-MHz clock
(16 MHz/8). The clock source and speed can be changed by the application program
as soon as the code execution starts.
●
Safe clock switching: Clock sources can be changed safely on the fly in run mode
through a configuration register. The clock signal is not switched until the new clock
source is ready. The design guarantees glitch-free switching.
●
Clock management: To reduce power consumption, the clock controller can stop the
clock to the core, individual peripherals or memory.
●
Wakeup: In case the device wakes up from low-power modes, the internal RC
oscillator (16 MHz/8) is used for quick startup. After a stabilization time, the device
switches to the clock source that was selected before halt mode was entered.
●
Clock security system (CSS): The CSS permits monitoring of external clock sources
and automatic switching to the internal RC (16 MHz/8) in case of a clock failure.
●
Configurable main clock output (CCO): This feature permits to outputs a clock signal
for use by the application.
5.5.2
Internal 16 MHz RC oscillator
●
Default clock after reset 2 MHz (16 MHz/8)
●
Fast wakeup time
User trimming
The register CLK_HSITRIMR with two trimming bits plus one additional bit for the sign
permits frequency tuning by the application program. The adjustment range covers all
possible frequency variations versus supply voltage and temperature. This trimming does
not change the initial production setting.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| STM8AF52A8TCX | 功能描述:8位微控制器 -MCU 8-Bit Automotive MCU CAN Line 128kb Flash RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| STM8AF52A8TCY | 功能描述:8位微控制器 -MCU 8-Bit Automotive MCU CAN Line 128kb Flash RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| STM8AF52A8TDX | 制造商:STMicroelectronics 功能描述:8 BITS MICROCONTR - Bulk 制造商:STMicroelectronics 功能描述:STM8 Series 8-bit 128 KB Flash 6 KB RAM 24 MHz Microcontroller - LQFP-48 |
| STM8AF52A8TDY | 功能描述:8位微控制器 -MCU 8-Bit Automotive MCU CAN Line 128kb Flash RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| STM8AF52A9 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Automotive 8-bit MCU, with up to 128 Kbytes Flash, data EEPROM |
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