STM8S903K3 STMicroelectronics, STM8S903K3 Datasheet - Page 9

• 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

STM8S903K3 STM8S903F3
2
Description
The STM8S903K3 and STM8S903F3 8-bit microcontrollers offer 8 Kbytes Flash program
memory, plus integrated true data EEPROM. The STM8S microcontroller family reference
manual (RM0016) refers to devices in this family as low-density. They provide the following
benefits: performance, robustness, and reduced system cost.
Device performance and robustness are ensured by advanced core and peripherals made
in a state-of-the art technology, a 16 MHz clock frequency, robust I/Os, independent watchdogs
with separate clock source, and a clock security system.
The system cost is reduced thanks to an integrated true data EEPROM for up to 300
kwrite/erase cycles and a high system integration level with internal clock oscillators, watchdog
and brown-out reset.
Full documentation is offered as well as a wide choice of development tools.
Device
Pin count
Max. number of GPIOs
(I/Os)
Ext. interrupt pins
Timer CAPCOM
channels
Timer complementary
outputs
A/D converter channels
High sink I/Os
Low density Flash
program memory(bytes)
Data EEPROM (bytes)
RAM (bytes)
Peripheral set
(1)
(2)
(3)
Including 21 high sink outputs
Including 12 high sink outputs
No read-while-write (RWW) capability
Table 1: STM8S903K3/F3 access line features
Multipurpose timer (TIM1), SPI, I
independent WDG, ADC, PWM timer (TIM5), 8-bit timer (TIM6)
DocID15590 Rev 6
STM8S903K3
28
32
28
21
3
7
(1)
640
8K
1K
7
(3)
2
C, UART window WDG,
STM8S903F3
16
20
16
12
2
5
(2)
Description
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