STM8AF51A9 STMicroelectronics, STM8AF51A9 Datasheet - Page 51

• Manufacturer Part Number: STM8AF51A9
• Description: Automotive 8-bit MCU, with up to 128 Kbytes Flash, EEPROM, 10-bit ADC, timers, LIN, CAN, USART, SPI, I2C, 3 V to 5.5 V
• Manufacturer: STMicroelectronics

Specifications of STM8AF51A9

• Max Fcpu: 24 MHz
• Program Memory: 32 to 128 Kbytes Flash program; data retention 20 years at 55 °C
• Data Memory: up to 2 Kbytes true data EEPROM; endurance 300 kcycles
• Ram: 2 Kbytes to 6 Kbytes
• Advanced Control Timer: 16-bit, 4 CAPCOM channels, 3 complementary outputs, dead-time insertion and flexible synchronization

STM8AF52/62xx, STM8AF51/61xx
9
Option bytes
Option bytes contain configurations for device hardware features as well as the memory
protection of the device. They are stored in a dedicated block of the memory. Each option
byte has to be stored twice, for redundancy, in a regular form (OPTx) and a complemented
one (NOPTx), except for the ROP (read-out protection) option byte and option bytes 8 to 16.
Option bytes can be modified in ICP mode (via SWIM) by accessing the EEPROM address
shown in
Option bytes can also be modified ‘on the fly’ by the application in IAP mode, except the
ROP and UBC options that can only be changed in ICP mode (via SWIM).
Refer to the STM8 Flash programming manual (PM0047) and STM8 SWIM communication
protocol and debug module user manual (UM0470) for information on SWIM programming
procedures.
Table 19: Option bytes
Doc ID 14395 Rev 8
below.
Option bytes
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