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参数资料
| 型号： | STM8AF6146TDXXXX |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | MICROCONTROLLER, PQFP32 |
| 封装： | 7 X 7 MM, LQFP-32 |
| 文件页数： | 5/90页 |
| 文件大小： | 1466K |
| 代理商： | STM8AF6146TDXXXX |
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STM8AF61xx STM8AH61xx
Product overview
5.4.2
Write protection (WP)
Write protection in application mode is intended to avoid unintentional overwriting of the
memory in case of user software malfunction. Code update in user mode is still possible
after execution of a specific MASS key sequence.
The program memory is divided into two areas:
●
Main program memory: Up to 32 Kbytes minus user-specific boot code (UBC)
●
UBC: Configurable up to 32 Kbytes
The UBC area also remains write-protected during in-application programming. It permits
storage of the boot program or specific code libraries.
The boot area is a part of the program memory that contains the reset and interrupt vectors,
the reset routine and usually the IAP and communication routines. The UBC area has a
second level of protection to prevent unintentional erasing or modification during IAP
programming. This means that the MASS keys do not unlock the UBC area.
The size of the UBC is programmable through the UBC option byte, in increments of 512
bytes, by programming the UBC option byte in ICP mode.
Figure 2.
Flash memory organization of STM8A products
Programmable area from 1 Kbyte
Data
UBC area
Program memory area
Data memory area (2 Kbytes)
(first two pages) up to program memory
EEPROM
Remains write protected during IAP
memory
Write access possible for IAP
Option bytes
end - maximum 128 Kbytes
Flash
program
memory
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相关代理商/技术参数 |
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| STM8AF6148 | 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 |
| 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 |
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