STM8S105K6U3C View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM8S105K6U3C

Access line, 16 MHz STM8S 8-bit MCU, up to 32 Kbytes Flash, integrated EEPROM,10-bit ADC, timers, UART, SPI, I²C

STMicroelectronics 

Option bytes

STM8S105xx

Option byte no.

OPT4

OPT5

Description

LSI_EN:Low speed internal clock enable

0: LSI clock is not available as CPU clock source

1: LSI clock is available as CPU clock source

IWDG_HW: Independent watchdog

0: IWDG Independent watchdog activated by software

1: IWDG Independent watchdog activated by hardware

WWDG_HW: Window watchdog activation

0: WWDG window watchdog activated by software

1: WWDG window watchdog activated by hardware

WWDG_HALT: Window watchdog reset on halt

0: No reset generated on halt if WWDG active

1: Reset generated on halt if WWDG active

EXTCLK: External clock selection

0: External crystal connected to OSCIN/OSCOUT

1: External clock signal on OSCIN

CKAWUSEL:Auto wake-up unit/clock

0: LSI clock source selected for AWU

1: HSE clock with prescaler selected as clock source for for AWU

PRSC[1:0] AWU clock prescaler

0x: 16 MHz to 128 kHz prescaler

10: 8 MHz to 128 kHz prescaler

11: 4 MHz to 128 kHz prescaler

HSECNT[7:0]:HSE crystal oscillator stabilization time

0x00: 2048 HSE cycles

0xB4: 128 HSE cycles

0xD2: 8 HSE cycles

0xE1: 0.5 HSE cycles

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DocID14771 Rev 9

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