STMicroelectronics STM8AF5289TCX

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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM8A
Packaging Tape & Reel (TR) | NULL
Core Processor STM8A
Core Size 8-Bit
Speed 24MHz
Connectivity CANbus, I2C, LINbus, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 52
Program Memory Size 64KB (64K x 8)
Program Memory Type FLASH
EEPROM Size 2K x 8
RAM Size 6K x 8
Voltage - Supply (Vcc/Vdd) 3V ~ 5.5V
Data Converters A/D 16x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 125°C (TA)
Grade Automotive
Qualification AEC AEC-Q100
Mounting Type Surface Mount
Supplier Device Package -
Package / Case 64-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM8AF5289TCX from STMicroelectronics is a robust 8-bit microcontroller built on the STM8A core. It operates at up to 24MHz with 64KB flash and 6KB RAM. The device supports a wide supply range of 3V to 5.5V and is housed in a 64-LQFP package. It includes essential safety features like brown-out reset, power-on reset, and watchdog timer, making it ideal for automotive and industrial control applications.

  • High-temperature tolerance: Rated up to 125°C, ensuring reliable operation in engine bays and industrial ovens.
  • Wide voltage range: 3V to 5.5V simplifies power supply design and supports direct battery connection.
  • Integrated safety features: Brown-out detect and watchdog timer prevent system corruption during power glitches.
  • Compact 64-LQFP package: Balances I/O count with board space, suitable for dense designs.

Automotive Body Control Modules

The 3V-5.5V supply and 125°C rating allow direct connection to vehicle battery lines and operation near hot engine compartments.

Industrial Sensor Interfaces

With 24MHz speed and 64KB flash, it can handle multiple analog sensor inputs and execute PID control loops in real time.

Motor Control for Pumps and Fans

Built-in PWM timers and WDT ensure reliable commutation and fault recovery in brushless DC motor drives.

Battery-Powered Field Instruments

Low-power modes and wide voltage range extend battery life in portable measurement devices.

HVAC Thermostats

The 64-LQFP package provides enough I/O for LCD drivers, keypads, and temperature sensors while maintaining compact size.

Lighting Control Systems

Fast PWM outputs and brown-out reset protect LED drivers from voltage dips and ensure consistent dimming performance.

Q: What is the operating voltage range of the STM8AF5289TCX?
A: The STM8AF5289TCX operates from 3V to 5.5V, making it suitable for automotive and industrial power rails.
Q: What is the maximum CPU speed?
A: The STM8A core runs at up to 24MHz, providing balanced performance for real-time control tasks.
Q: How much flash and RAM does it have?
A: It features 64KB of program flash and 6KB of RAM, sufficient for mid-complexity embedded applications.
Q: What package is available?
A: It comes in a 64-pin LQFP package, ideal for space-constrained PCB layouts.
Q: What temperature range does it support?
A: It is rated for -40°C to 125°C, suitable for harsh automotive environments.
Base Product Number : STM8AF5289
24MHz 64-LQFP 64KB flash 6KB RAM 8-bit MCU automotive industrial control motor control PWM STM8A core WDT
Q: What is the operating voltage range of the STM8AF5289TCX?
A: The STM8AF5289TCX operates from 3V to 5.5V, making it suitable for automotive and industrial power rails.
Q: What is the maximum CPU speed?
A: The STM8A core runs at up to 24MHz, providing balanced performance for real-time control tasks.
Q: How much flash and RAM does it have?
A: It features 64KB of program flash and 6KB of RAM, sufficient for mid-complexity embedded applications.
Q: What package is available?
A: It comes in a 64-pin LQFP package, ideal for space-constrained PCB layouts.
Q: What temperature range does it support?
A: It is rated for -40°C to 125°C, suitable for harsh automotive environments.