STM8S103K3U6 STMicroelectronics Integrated Circuit (Quad Flat No-Lead) In Stock
STMicroelectronics STM8S103K3U6 is an 8-bit STM8 microcontroller running up to 16MHz with ADC, featuring a 32-pin UFQFPN package and 10-week factory lead time. It integrates on-chip RAM, flash memory, and multiple peripherals for embedded control tasks. Available from authorized distributors in stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat No-Lead
- Pin Count
- 32
- Lifecycle
- ACTIVE
- Datasheet
- STM8S103K3U6 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.8832(MOQ 25)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit STM8 CPU core running at up to 16MHz for efficient real-time embedded processing
- Integrated ADC with no DAC or DMA channels, optimized for cost-effective sensor interfacing applications
- Compact 32-pin UFQFPN (QFN) package enabling space-efficient PCB layouts for IoT and consumer electronics
Applications
The STM8S103K3U6 is well suited for low-power embedded control applications such as home appliances, industrial sensors, and consumer electronics. Its integrated ADC makes it ideal for data acquisition systems and analog sensor interfacing. The compact QFN package and 16MHz core frequency make it a cost-effective solution for motor control, LED management, and communication protocol handling in space-constrained designs.
Specifications
| Manufacturer Package Code | UFQFPN |
| Factory Lead Time | 10Weeks |
| YTEOL | 9 |
| Has ADC | YES |
| Bit Size | 8 |
| CPU Family | STM8 |
| Clock Frequency-Max | 16MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| JESD-30 Code | S-XQCC-N32 |
| JESD-609 Code | e3 |
| Number of I/O Lines | 28 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | LCC32,.2SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 1024 |
| ROM (words) | 8192 |
| ROM Programmability | FLASH |
| Speed | 16MHz |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3.3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.15 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum clock frequency of the STM8S103K3U6?
The STM8S103K3U6 operates at a maximum clock frequency of 16MHz. This 8-bit STM8 microcontroller provides sufficient processing power for most embedded control tasks including sensor reading, protocol communication, and PWM generation.
Does the STM8S103K3U6 include ADC, DAC, or DMA capabilities?
The STM8S103K3U6 includes an integrated ADC for analog signal sampling, but does not feature a DAC or DMA channels. This configuration is typical for cost-sensitive embedded applications that require analog input without needing complex data transfer acceleration.
What is the package type and pin count of the STM8S103K3U6?
The STM8S103K3U6 comes in a 32-pin UFQFPN (Ultra-thin Fine-pitch Quad Flat No-Lead) package, with JESD-30 code S-XQCC-N32. This compact SMD package is suited for designs where PCB space is at a premium.
What is the typical lead time for ordering the STM8S103K3U6?
The factory lead time for the STM8S103K3U6 is approximately 10 weeks according to manufacturer data. It is recommended to check with authorized distributors for current stock levels and availability, as in-stock units may ship immediately.
Related Guides
How to Choose a USB Controller: Certification, Integration, and SDK Quality Compared Across Microchip, STMicroelectronics, NXP, TI, and Renesas
Compare USB controllers from Microchip, STM, NXP, TI, and Renesas across certification difficulty, integration ease, and documentation/SDK quality to choose the right IC for your design.
May 28, 2026
ADAU1361BCPZ Application Note: Audio Codec Design Guide for Embedded Systems
Complete design guide for the ADAU1361BCPZ stereo 96kHz/24-bit audio codec: power supply filtering, PLL startup sequence, PCB layout, SigmaDSP integration, and troubleshooting.
May 28, 2026
LM66100QDCKRQ1 Design Guide: Ideal Diode and Reverse Polarity Protection for Automotive Power Rails
Complete application note for the LM66100QDCKRQ1 AEC-Q100 ideal diode controller: PMOS selection, threshold tuning, RPP integration, layout, and automotive design pitfalls.
May 28, 2026
LM2904BQDGKRQ1 Selection Guide: Automotive Dual Op-Amp Variants, Packages, and Alternatives
How to choose the right LM2904BQ automotive dual op-amp variant: AEC-Q100 grade, offset voltage, package, and non-automotive alternatives explained.
May 27, 2026
Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
More from STMicroelectronics
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 25+ | $0.9464 | $23.66 |
| 100+ | $0.9201 | $92.01 |
| 250+ | $0.9175 | $229.38 |
| 11760+ | $0.9158 | $10769.81 |
| 23520+ | $0.8992 | $21148.01 |
| 47040+ | $0.8832 | $41545.73 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”