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参数资料
| 型号： | STM8AF6148TBX |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP48 |
| 封装： | 7 X 7 MM, ROHS COMPLIANT, LQFP-48 |
| 文件页数： | 8/99页 |
| 文件大小： | 881K |
| 代理商： | STM8AF6148TBX |
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Product overview
STM8AF61xx, STM8AF62xx
Doc ID 14952 Rev 4
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.
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 or individual peripherals.
●
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 three 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.
For reason of compatibility with other devices from the STM8A family, a special mode
with only two trimming bits plus sign can be selected. This selection is controlled
with the bit 16MHZTRIM0 in the option byte registers OPT3 and NOPT3.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| STM8AF6166 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Automotive 8-bit MCU, with up to 32 Kbytes Flash, data EEPROM, 10-bit ADC, timers, LIN, SPI, I2C, 3 to 5.5 V |
| STM8AF6166TAY | 制造商:STMicroelectronics 功能描述:AUTOMOTIVE 8-BIT MCU, WITH UP TO 32 KBYTES FLASH, EEPROM - Trays |
| STM8AF6166TCY | 制造商:STMicroelectronics 功能描述:AUTOMOTIVE 8-BIT MCU, WITH UP TO 32 KBYTES FLASH, - Trays |
| STM8AF6168 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Automotive 8-bit MCU, with up to 32 Kbytes Flash, data EEPROM, 10-bit ADC, timers, LIN, SPI, I2C, 3 to 5.5 V |
| STM8AF6169 | 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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