STM8S903K3 STMicroelectronics, STM8S903K3 Datasheet - Page 46

• Manufacturer Part Number: STM8S903K3
• Description: 16 MHz STM8S 8-bit MCU, up to 8 Kbytes Flash, 1 Kbyte RAM, 640 bytes EEPROM
• Manufacturer: STMicroelectronics

Specifications of STM8S903K3

• Program Memory: 8 Kbytes Flash; data retention 20 years at 55 °C after 10 kcycles
• Data Memory: 640 bytes true data EEPROM; endurance 300 kcycles
• Ram: 1 Kbytes
• Advanced Control Timer: 16-bit, 4 CAPCOM channels, 3 complementary outputs, dead-time insertion and flexible synchronization

Option bytes
8.1
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STM8S903K3/F3 alternate function remapping bits
Option byte no.
Option byte no.
OPT4
OPT5
OPT2
Table 13: STM8S903K3 alternate function remapping bits [7:2] for 32-pin packages
Description
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
Description
AFR7 Alternate function remapping option 7
0: AFR7 remapping option inactive: Default alternate functions
1: Port C3 alternate function = TIM1_CH1N; port C4 alternate
function = TIM1_CH2N.
AFR6 Alternate function remapping option 6
0: AFR6 remapping option inactive: Default alternate function
1: Port D7 alternate function = TIM1_CH4.
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