STM8S903K3 STMicroelectronics, STM8S903K3 Datasheet - Page 32

• 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

Memory and register map
32/115
Address
0x00 50CC
0x00 50CD
0x00 50CE to
0x00 50D0
0x00 50D1
0x00 50D2
0x00 50D3 to
00 50DF
0x00 50E0
0x00 50E1
0x00 50E2
0x00 50E3 to
0x00 50EF
0x00 50F0
0x00 50F1
0x00 50F2
0x00 50F3
0x00 50F4 to
0x00 50FF
0x00 5200
0x00 5201
Block
Reserved area (3 bytes)
WWDG
Reserved area (13 bytes)
IWDG
Reserved area (13 bytes)
AWU
BEEP
Reserved area (12 bytes)
SPI
Register label
CLK_HSITRIMR
CLK_SWIMCCR
WWDG_CR
WWDG_WR
IWDG_KR
IWDG_PR
IWDG_RLR
AWU_CSR1
AWU_APR
AWU_TBR
BEEP_CSR
SPI_CR1
SPI_CR2
DocID15590 Rev 6
Register name
HSI clock calibration trimming register
SWIM clock control register
WWDG control register
WWDR window register
IWDG key register
IWDG prescaler register
IWDG reload register
AWU control/status register 1
AWU asynchronous prescaler buffer
register
AWU timebase selection register
BEEP control/status register
SPI control register 1
SPI control register 2
STM8S903K3 STM8S903F3
Reset
status
0x00
0bXXXX
XXX0
0x7F
0x7F
0xXX
0x00
0xFF
0x00
0x3F
0x00
0x1F
0x00
0x00
(2)