STM8S103K3U6 vs STM8S105K6B6 Comparison
Detailed side-by-side comparison of STM8S103K3U6 by STMicroelectronics and STM8S105K6B6 by STMicroelectronics. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
STMicroelectronics
STM8S103K3U6 - 16MHz 8-Bit MCU with 8KB Flash | STMicroelectronics
STM8S103K3U6 ✓ Active
Specification Comparison
| Parameter | STM8S103K3U6 | STM8S105K6B6 |
|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Unknown |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.29 | $0.57 |
| Product Type | 8-bit microcontroller MCU | — |
| Series | STM8S access line | — |
| Maximum Clock Speed | 16 MHz | — |
| Program Memory | 8 KB Flash | — |
| RAM | 1 KB | — |
| Data EEPROM | 640 bytes | — |
| Data Retention | 20 years at 55°C after 10 kcycles | — |
| EEPROM Endurance | 300 kcycles | — |
| Supply Voltage Range | 2.95 V to 5.5 V | — |
| ADC Resolution | 10-bit | 10-bit |
| I/O Ports | 16 | — |
| Timer Count | 3 timers | — |
| Serial Interfaces | UART, SPI, and I²C | — |
| Package | 32-pin UFQFPN, 5 x 5 mm, exposed pad | 32-SDIP, 0.400 inch, 10.16 mm |
| Architecture | 8-bit STM8 CISC core | — |
| Mounting Type | Surface Mount | — |
| Lifecycle Stage | Active | — |
| Microcontroller Type | — | 8-bit STM8S microcontroller |
| Maximum Operating Frequency | — | 16 MHz |
| Program Memory Size | — | 32 KB (32K × 8) Flash |
| Data RAM Size | — | 2K × 8 |
| Integrated EEPROM | — | Yes |
| Number of I/O Pins | — | 25 |
| UART | — | Yes |
| SPI | — | Yes |
| I2C | — | Yes |
| Timer Support | — | Yes |
| Core | — | STM8 8-bit core |
| Mounting Style | — | Through-hole |
| Product Family | — | STM8S105x4/6 access line |
| Programming Memory Type | — | Flash |
| Data Memory Organization | — | 2K × 8 |
| Connectivity | — | UART, SPI, I2C |
| Mixed-Signal Acquisition | — | Yes |
| Supply Voltage | — | [DATA_NEEDED: supply voltage range] |
| Operating Temperature | — | [DATA_NEEDED: operating temperature range] |
| RoHS Status | — | [DATA_NEEDED: RoHS status] |
| REACH Status | — | [DATA_NEEDED: REACH status] |
| Automotive AEC-Q100 Status | — | [DATA_NEEDED: AEC-Q100 status] |
| MSL | — | [DATA_NEEDED: moisture sensitivity level] |
| Pricing Date | — | Verified distributor pricing reference as of 2026-10-23 |