STM8S003K3T6 STMicroelectronics Integrated Circuit (Quad Flat Packages) In Stock
STMicroelectronics STM8S003K3T6 is an 8-bit STM8 microcontroller running up to 16 MHz with integrated ADC, timers, and UART in a compact LQFP-32 package. It features 8 KB flash, 1 KB RAM, and operates from 2.95 V to 5.5 V supply voltage for cost-sensitive embedded applications. Available from authorized distributors worldwide with in-stock inventory and competitive pricing.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat Packages
- Pin Count
- 32
- Lifecycle
- ACTIVE
- Datasheet
- STM8S003K3T6 Datasheet PDF
- Category
- Integrated Circuit
- 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 16 MHz with 8 KB flash and 1 KB RAM for cost-efficient embedded control applications
- Integrated 10-bit ADC with up to 5 channels enables direct analog sensor interfacing without external conversion circuitry
- Wide 2.95 V to 5.5 V supply voltage range ensures compatibility with both 3.3 V and 5 V system designs without level-shifting
Applications
The STM8S003K3T6 is well suited for low-cost consumer appliances, home automation nodes, and industrial sensor modules where an 8-bit microcontroller running at 16 MHz provides adequate processing headroom at minimal BOM cost. Its integrated 10-bit ADC, timers, and communication peripherals make it a practical choice for motor speed controllers, LED dimmers, temperature monitoring units, and battery-powered remote control devices operating on 3.3 V or 5 V rails.
Specifications
| YTEOL | 6 |
| Has ADC | YES |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | STM8 |
| Clock Frequency-Max | 16MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQFP-G32 |
| Low Power Mode | YES |
| Number of External Interrupts | 27 |
| Number of I/O Lines | 28 |
| Number of Timers | 4 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | QFP32,.35SQ,32 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, LOW PROFILE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| RAM (bytes) | 1024 |
| ROM (words) | 8192 |
| ROM Programmability | FLASH |
| Speed | 16MHz |
| Supply Current-Max | 100mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3.3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.8mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.31.00.15 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for STM8S003K3T6:
Frequently Asked Questions
What CPU speed and memory does the STM8S003K3T6 offer for embedded firmware development?
The STM8S003K3T6 runs the STM8 8-bit core at up to 16 MHz and provides 8 KB of flash program memory and 1 KB of RAM. This is sufficient for straightforward sensor reading, simple state machine control, and UART communication tasks, with enough flash to hold moderate-size firmware images compiled with standard STM8 toolchains such as SDCC or IAR EWSTM8.
How does the STM8S003K3T6 handle analog sensor inputs, and what resolution does it support?
The STM8S003K3T6 integrates a 10-bit successive approximation ADC with up to 5 input channels. A 10-bit resolution yields 1024 discrete levels, which for a 5 V reference gives a step size of approximately 4.9 mV per LSB. This is adequate for reading NTC thermistors, potentiometers, and light-dependent resistors in consumer appliance and HVAC control designs without requiring an external ADC chip.
What supply voltage range does the STM8S003K3T6 support, and how does that affect system design choices?
The STM8S003K3T6 operates from 2.95 V to 5.5 V, making it compatible with both 3.3 V regulator outputs and direct 5 V supply rails common in legacy designs. This eliminates the need for level-shifting circuitry when interfacing with 5 V sensors or displays, and allows the device to operate from a single AA or AAA battery cell in power-down mode where the cell voltage drops toward 3 V near end of discharge.
For a compact motor-control or appliance PCB, how much board space does the STM8S003K3T6 LQFP-32 package require?
The STM8S003K3T6 comes in an LQFP-32 package measuring 7 mm × 7 mm body with 0.8 mm pin pitch, occupying roughly 49 mm² of PCB area including pad extensions. This compact form factor fits comfortably on single-layer or two-layer boards used in low-cost consumer appliances, freeing board space for power circuitry and sensor conditioning components around the microcontroller.
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