STMicroelectronics STM8S903K3T6CTR

Skip to product information
1 of 1
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Regular price $2.87
Regular price $2.05 Sale price $2.87
Sale Sold out
Quantity Unit Price Total Price
1 $2.87 $2.87
15+ $1.89 $28.35
25+ $1.85 $46.25
50+ $1.74 $87.00
100+ $1.54 $154.00
N+ $0.31 Price Inquiry
Shipping calculated at checkout.
Quantity
Component Recycling

Request Quote / Inquiry

Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM8S
Packaging Cut Tape (CT) | Tape & Reel (TR)
Core Processor STM8
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 28
Program Memory Size 8KB (8K x 8)
Program Memory Type FLASH
EEPROM Size 640 x 8
RAM Size 1K x 8
Voltage - Supply (Vcc/Vdd) 2.95V ~ 5.5V
Data Converters A/D 7x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 32-LQFP (7x7)
Package / Case 32-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM8S903K3T6CTR is a high-performance 8-bit microcontroller from STMicroelectronics, featuring an advanced STM8 core running at 16MHz. With 8KB of Flash and 1KB of RAM, it offers a balanced solution for cost-sensitive applications. Its integrated 10-bit ADC, PWM timers, and robust watchdog ensure reliable operation in industrial and consumer environments. Operating from 2.95V to 5.5V, it supports both 3.3V and 5V logic, making it versatile for a wide range of embedded designs.

  • High Efficiency: The 16MHz STM8 core delivers up to 20 MIPS, ensuring fast processing for real-time tasks.
  • Wide Voltage Range: Supports 2.95V to 5.5V, simplifying power supply design and enabling direct 5V sensor interfacing.
  • Rich Analog Features: 7-channel 10-bit ADC allows precise analog signal measurement without external components.
  • Compact Package: The 32-LQFP (7x7mm) package saves PCB space while providing ample I/O pins.
  • Enhanced Reliability: Includes brown-out reset, power-on reset, and watchdog timer for fail-safe operation.

Industrial Automation

The STM8S903K3T6CTR can be used in PLCs and sensor interfaces, providing reliable 8-bit control with its 16MHz core and robust I/O capabilities.

Motor Control

With built-in PWM and a 10-bit ADC, this MCU is suitable for simple brushless DC motor control in fans, pumps, and power tools.

Smart Home Devices

Its low power consumption and 5V compatibility make it ideal for smart switches, thermostats, and lighting control units.

Battery-Powered Instruments

The wide voltage range and low-cost architecture enable use in portable meters and handheld measurement tools.

Automotive Body Electronics

Operating up to 85°C, it can handle basic body control functions like window lifts and mirror adjustment in entry-level vehicles.

Consumer Appliances

From washing machines to microwave ovens, this MCU provides cost-effective control with its rich peripheral set.

Q: What is the core architecture of the STM8S903K3T6CTR?
A: It is based on the STM8 8-bit core, running at up to 16 MHz.
Q: What is the operating voltage range?
A: It operates from 2.95V to 5.5V, making it suitable for 3.3V and 5V systems.
Q: How much Flash and RAM does it have?
A: It features 8KB of Flash memory and 1KB of RAM.
Q: What peripherals are available?
A: It includes a 10-bit ADC with 7 channels, PWM, WDT, and brown-out detection.
Q: What is the package type?
A: It comes in a 32-pin LQFP package (7x7 mm).
Q: What are typical applications?
A: It is ideal for industrial control, consumer electronics, and small appliance applications.
Base Product Number : STM8S903K3
16MHz 1KB RAM 8-bit 8KB Flash ADC Consumer Electronics I2C Industrial LQFP-32 MCU PWM SPI STM8 UART
Q: What is the core architecture of the STM8S903K3T6CTR?
A: It is based on the STM8 8-bit core, running at up to 16 MHz.
Q: What is the operating voltage range?
A: It operates from 2.95V to 5.5V, making it suitable for 3.3V and 5V systems.
Q: How much Flash and RAM does it have?
A: It features 8KB of Flash memory and 1KB of RAM.
Q: What peripherals are available?
A: It includes a 10-bit ADC with 7 channels, PWM, WDT, and brown-out detection.
Q: What is the package type?
A: It comes in a 32-pin LQFP package (7x7 mm).
Q: What are typical applications?
A: It is ideal for industrial control, consumer electronics, and small appliance applications.