STM8S003K3T6C

Order Process

• 1. Send Inquiry — Submit your part number, quantity, and target price via our Contact form or email. We respond within 24 hours.
• 2. Quote & Confirm — Receive a detailed quotation including unit price, lead time, and shipping options. MOQ is typically 1 piece — no minimum orders for most items.
• 3. Payment — We accept wire transfer (T/T), PayPal, and major credit cards. Payment terms are flexible for repeat customers.
• 4. Quality Inspection — Every order undergoes visual inspection, electrical testing when applicable, and packaging verification before shipment. Third-party testing available upon request.
• 5. Delivery — Shipped via DHL, FedEx, or UPS. Tracking number provided within 24 hours of dispatch. Typical transit time: 5–10 business days.

Why Aurora

• 150+ Manufacturers — Direct sourcing from factory channels and vetted global suppliers across Asia, Europe, and North America. No middlemen.
• 10,000+ SKUs in Stock — Extensive inventory of electronic components: capacitors, inductors, resistors, connectors, semiconductors, and more.
• Quality You Can Trust — Every supplier is rigorously vetted. We trace components back to their original source and support independent lab testing on request.
• One Partner, Less Hassle — From sourcing to delivery, one point of contact handles everything. No need to juggle multiple vendors.

FAQ

Q: Is the STM8S003K3T6C code-compatible with the TSSOP-20 STM8S003F3P6?
A: Yes, fully. Both share the same STM8 core, Flash map, peripheral register map, and interrupt vectors. BLHeli_S firmware compiled for the F3 variant runs unmodified on the K3 variant — the only difference is that additional GPIO pins become available for application use. Pin assignments differ due to

Q: Can BLHeli_S run on the LQFP-32 variant?
A: Yes, but most commercial BLHeli_S ESCs use the smaller TSSOP-20 package for cost and PCB area savings. The LQFP-32 variant is typically used in custom ESC designs that require additional onboard features (current sensing, LED control, dual motors) beyond what the 16-pin TSSOP-20 can accommodate. The

1. Product Overview

The STM8S003K3T6C is the LQFP-32 member of the STM8S003 Value Line family. While retaining the same 8 KB Flash, 1 KB SRAM, and 128-byte EEPROM as the TSSOP-20 variant, the larger package unlocks 28 GPIO pins — a 75% increase over the 16 pins of the TSSOP-20. This additional I/O is critical for applications that need to control more MOSFET gate-driver signals, read multiple ADC channels simultaneously, or drive multiple LED strings in parallel. In the drone ecosystem, the K3 variant serves in more complex BLHeli_S ESC designs that integrate onboard current sensing, voltage monitoring, and LED control on a single MCU. For BMS applications, the extra GPIOs enable direct connection to cell-balancing MOSFETs and multiple temperature sensors without external I/O expanders. For PDB controllers, i

2. Key Features

• 28 GPIO Pins in LQFP-32 — Room for Multi-Channel ESC Control
• Hand-Solderable 0.8 mm Pitch — Prototype-Friendly
• 4-Channel 10-Bit ADC — Multi-Channel Voltage Monitoring

3. Technical Specifications

4. Applications

• Dual-Motor Drone ESC (Coaxial / Tilt-Rotor)
• Advanced BMS with Cell Balancing Control
• Full-Featured PDB Telemetry Controller

5. Supply Solutions

Aurora supports customers with STM8S003K3T6C sourcing through verified global supply channels. We help OEMs and manufacturers manage availability challenges, production requirements, and lifecycle risks with flexible procurement solutions.

6. Quality Assurance

All components supplied by Aurora follow strict quality control procedures, including supplier verification, documentation review, inspection, and traceability management to ensure product authenticity and reliability.

7. Alternative & Replacement Solutions

When original STM8S003K3T6C components face shortages, lifecycle changes, or long lead times, Aurora helps customers identify suitable alternative components based on technical requirements, application needs, and supply conditions.

8. Request Quote / Contact

Need STM8S003K3T6C availability or sourcing support?

Contact Aurora for component verification, quotation, and reliable supply solutions.