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STM8S903K3T6CTR
+BOMIC MCU 8BIT 8KB FLASH 32LQFP
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ManufacturerSTMicroelectronics
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Mfr. Part #STM8S903K3T6CTR
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Datasheet STM8S903K3T6CTR DataSheet
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Package LQFP-32
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In Stock1578
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Specifications
| Attribute | Value |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | STM8S |
| Part Status | Active |
| 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) |
| Mounting Type | Surface Mount |
Overview
Description
- Core: STM8 16MHz CPU with 3-stage pipeline.
- Memory: 8KB Flash, 1KB RAM, 128B EEPROM.
- Peripherals: 10-bit ADC, timers, UART, SPI, I²C, and GPIOs.
- Package: 32-pin LQFP.
- Voltage: 2.95V–5.5V, suitable for low-power applications.
Ideal for cost-sensitive embedded systems like consumer electronics, industrial controls, and IoT devices. Its robust architecture and rich peripheral set make it versatile for various applications.
Equivalent
- STM8S003F3P6 (similar specs, lower flash)
- STM8S005K6T6C (higher flash/RAM)
- STM8S103F3P6 (comparable, widely used)
- STM8S105K4T6C (more peripherals)
Alternatives from other brands:
- Nuvoton MS51FB9AE (8051 core)
- Renesas RL78/G13 (low-power)
Check pinout and specs for compatibility.
Features
- Core: STM8S, 16 MHz max frequency.
- Memory: 8 KB Flash, 1 KB RAM, 128 B EEPROM.
- GPIO: Up to 38 I/O pins with high sink capability.
- Timers: Three 16-bit timers (TIM1, TIM2, TIM3), one 8-bit timer (TIM4), and a watchdog.
- Communication: UART, SPI, I²C interfaces.
- ADC: 10-bit, 5-channel ADC with scan mode.
- Packaging: LQFP32 (7x7 mm).
- Operating Voltage: 2.95V to 5.5V.
- Special Features: Hardware debugging (SWIM), robust reset system, and low-power modes.
Ideal for cost-sensitive industrial and consumer applications.
Pinout
- Pin Count: 32 pins (LQFP package)
- Core: 8-bit STM8
- Flash Memory: 8 KB
- RAM: 1 KB
- EEPROM: 640 bytes
- Clock Speed: Up to 16 MHz
- Peripherals:
- 10-bit ADC (5 channels)
- Timers (16-bit & 8-bit)
- UART, SPI, I²C
- Up to 28 GPIOs
- Analog comparator
Commonly used in embedded control applications like consumer electronics, industrial systems, and motor control.
Manufacturer
STMicroelectronics designs and produces a wide range of microcontrollers, sensors, power management ICs, and other semiconductor solutions. The company serves industries like automotive, industrial, consumer electronics, and IoT.
The STM8S903K3T6CTR is part of the STM8S series, an 8-bit microcontroller family known for its cost-effectiveness, low power consumption, and robust performance in embedded applications.
ST is recognized for innovation, reliability, and global reach in the semiconductor market.
Application
- Consumer Electronics: Remote controls, small appliances.
- Industrial Control: Sensors, motor control, automation.
- Automotive: Auxiliary systems (e.g., lighting, basic ECUs).
- Home Automation: Smart switches, thermostats.
- Embedded Systems: Low-power, cost-sensitive applications.
It features 16 MHz operation, 8 KB Flash, and rich peripherals (ADC, timers, UART, SPI, I²C), making it suitable for compact, efficient designs.
