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STMicroelectronics STM8S105K4T3C — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM8S105K4T3C 8-bit MCU, 16 MHz, 16 KB Flash

MPNSTM8S105K4T3C
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STMicroelectronics STM8S105K4T3C, STM8S series 8-bit MCU, 16 MHz core, 16 KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 7x10b ADC, 2.95V-5.5V supply, -40°C to 125°C, 32-LQFP.

$2.7000Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8S105K4T3C specifications
ParameterValue
SeriesSTM8S
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.95V ~ 5.5V
Operating temperature-40°C ~ 125°C (TA)
Speed16MHz
PackageTray
RAM size2K x 8
Core size8-Bit
EEPROM size1K x 8
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)25
Core processorSTM8
Case32-LQFP
Data convertersA/D 7x10b
Program memory size16KB (16K x 8)

Product details

It runs at 16 MHz and packs 16 KB of Flash program memory, 2K x 8 of RAM, and 1K x 8 of EEPROM.

On-chip resources and interfaces

With 16 KB of Flash and 2K x 8 of RAM, this MCU targets moderate-complexity control loops, state machines, and communication protocol stacks. The 7-channel 10-bit ADC provides enough resolution for analog sensor inputs like temperature, current, or position feedback. The 25 I/O pins in the 32-LQFP package offer a balanced pin count for compact PCB layouts.

Frequently asked questions

Does STM8S105K4T3C have a built-in ADC?

Yes, it includes a 7-channel 10-bit ADC for analog sensor inputs.