Manufacturer Part Number

STM8AF6226TCY

Description

8-bit microcontroller from STMicroelectronics with 8KB Flash program memory, supports automotive-grade applications. This part is housed in a 32-pin LQFP package (7x7mm). It operates at speeds up to 16MHz, suitable for embedded control, automotive interfaces, and general logic/motor control.

Specifications

Core: STM8A, 8-bit

Program Memory: 8KB Flash (8K x 8)

EEPROM: 640 bytes

RAM: 1KB

Speed: 16MHz

I/O Pins: 28

Operating Voltage: 3V to 5.5V

Peripherals: PWM, WDT, Brown-out Detect/Reset, POR

Data Converters: 7-channel, 10-bit SAR ADC

Communication: I2C, LINbus, SPI, UART/USART

Oscillator: Internal

Operating Temperature: -40°C to +125°C

Package: 32-LQFP (7x7mm)

Mounting: Surface Mount

Compliance: RoHS3, REACH

Moisture Sensitivity: MSL 3 (168 hours)

Device Structure

The device is a monolithic IC with embedded Flash memory, EEPROM, and SRAM. The chip has 28 general purpose I/Os, built-in ADC, robust set of automotive-qualified peripherals, and system-level supervisory features. Housed in a 32-LQFP package which fits standard PCB layouts.

Performance Characteristics

Reliable high-speed processing at 16MHz for real-time applications

Fast Flash program memory access and EEPROM for variable data storage

Robust communication through I2C, LINbus, SPI, and UART/USART

ADC enables data acquisition and analog signal processing

Integrated brown-out and power-on reset ensure safe startup in harsh automotive environments

Wide supply voltage range; supports noisy and transient-prone systems

Automotive qualification (AEC-Q100) for high reliability

Application Environments

Automotive ECUs, sensors, and control modules

Industrial embedded systems

Home appliances and industrial equipment

Applications needing wide temperature range and high immunity to electrical noise

Systems requiring cost-effective, reliable 8-bit processing

Selection Guidelines

Choose this MCU for cost-sensitive automotive or industrial designs that need reliable performance, moderate program storage (8KB), and comprehensive communication interfaces

Suitable for newcomers to 8-bit embedded designs due to robust peripheral set

Not recommended for new designs since status is Not For New Designs. Consider next-generation STM8 or STM32 devices for longer lifecycle support

Ensure application needs no more than 8KB Flash, 1KB RAM, and 28 I/Os

LQFP-32 surface-mount package fits most standard automotive PCB requirements

Usage Considerations

Observe correct MSL (Moisture Sensitivity Level 3) handling; package exposure limited to 168 hours at factory conditions

Wide voltage operation allows integration into various power architectures, but designers should ensure stable power for optimal noise immunity

Not for new designs; recommended for maintenance or replacement in existing products

Regularly check for product availability in inventory and lifecycle status

Potential Equivalent/Replacement Models

There is a suggested substitute: STM8AF6226TCSSSY.

Further alternatives may exist in the STM8A family or other automotive-qualified STMicroelectronics products. For a complete and updated list of compatible substitutes or functional alternatives, contact our website Ariat-Tech sales team directly. If your application requires longer lifetime supply or future support, we highly recommend considering the STM32 series or consulting with our engineering support.

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