STMicroelectronics STM8S105K4U3A
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.22 | $5.22 |
| 15+ | $1.21 | $18.15 |
| 25+ | $1.18 | $29.50 |
| 50+ | $1.11 | $55.50 |
| 100+ | $0.98 | $98.00 |
| N+ | $0.20 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM8S |
| Packaging | Tray | NULL |
| Core Processor | STM8A |
| Core Size | 8-Bit |
| Speed | 16MHz |
| Connectivity | I2C, IrDA, LINbus, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 25 |
| Program Memory Size | 16KB (16K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 1K x 8 |
| RAM Size | 2K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.95V ~ 5.5V |
| Data Converters | A/D 7x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 32-UFQFPN (5x5) |
| Package / Case | 32-UFQFN Exposed Pad |
| ROHS |
The STM8S105K4U3A is a robust 8-bit microcontroller from STMicroelectronics. It features a 16MHz STM8A core, 16KB flash, and 2KB RAM. Designed for harsh environments, it operates from -40°C to 125°C and supports 2.95V-5.5V supplies.
- High-temperature rating: -40°C to 125°C for automotive.
- Wide voltage: 2.95V-5.5V simplifies power design.
- Proven STM8 core: Reliable 8-bit architecture.
- Compact package: 32-UFQFN saves space.
Automotive Body Control
125°C rating and 5V operation suit engine bay and lighting modules.
Industrial Actuators
PWM and WDT provide reliable control for valves and relays.
Power Tools
High-temperature tolerance and robust I/O handle motor drive circuits.
HVAC Systems
16MHz core and 16KB flash manage fan and compressor control loops.
Safety Systems
Brown-out detect and POR ensure fail-safe operation in critical applications.
LED Lighting
PWM channels drive dimming with wide voltage range for automotive lighting.
- Q: What is the core architecture?
- A: STM8A 8-bit core at 16MHz.
- Q: What temperature range?
- A: -40°C to 125°C, suitable for automotive.
- Q: What package is available?
- A: 32-UFQFN with exposed pad.
- Q: What voltage does it support?
- A: 2.95V to 5.5V.
- Q: What is the core architecture?
- A: STM8A 8-bit core at 16MHz.
- Q: What temperature range?
- A: -40°C to 125°C, suitable for automotive.
- Q: What package is available?
- A: 32-UFQFN with exposed pad.
- Q: What voltage does it support?
- A: 2.95V to 5.5V.

STM8S105K4U3A.pdf