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STMicroelectronics STM8AF6226TASSSY — Microcontrollers & Processors (MCU / MPU / DSP)

STM8AF6226TASSSY 8-bit MCU, AEC-Q100, 16 MHz, 8 KB Flash

MPNSTM8AF6226TASSSY
NRND

STMicroelectronics STM8AF6226TASSSY, Automotive AEC-Q100 STM8A series, 8-bit MCU, 16MHz, 8KB Flash, 1K x 8 RAM, 640 x 8 EEPROM, 28 I/O, I²C/LINbus/SPI/UART, 32-LQFP, -40°C~85°C.

$1.7872Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8AF6226TASSSY specifications
ParameterValue
SeriesAutomotive, AEC-Q100, STM8A
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))3V ~ 5.5V
Operating temperature-40°C~85°C(TA)
Speed16MHz
PackageTray
RAM size1K x 8
Core size8-Bit
EEPROM size640 x 8
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, LINbus, SPI, UART/USART
Number of i (O)28
Core processorSTM8A
Case32-LQFP
Data convertersA/D 7x10b SAR
Program memory size8KB (8K x 8)

Product details

Automotive 8-bit MCU with AEC-Q100 grade

It runs at up to 16 MHz on the STM8A core, with 8 KB of Flash program memory, 1 KB of SRAM, and 640 bytes of EEPROM—enough for small-footprint body-control, LIN-node, or sensor-interface firmware. The 32-LQFP package brings out 28 I/O lines, plus I²C, LINbus, SPI, and UART/USART connectivity for mixed-protocol bus designs.

Memory and peripheral budget for control loops

With 8 KB Flash and 1 KB RAM, firmware must be lean—typical for LIN slave nodes, window-lift controllers, or seat-position sensors. The 640-byte EEPROM supports parameter storage (calibration, trim, VIN lookup) without external memory.

Supply range and temperature coverage

Brown-out detect, POR, and watchdog peripherals are integrated for robust reset handling in noisy automotive environments.

Frequently asked questions

Is STM8AF6226TASSSY obsolete?

It is not fully discontinued, but ST advises against using it in new designs. Existing production BOMs can still be sourced through the channel.

What is the replacement for STM8AF6226TASSSY?

For new designs, evaluate current-production STM8A family MCUs with similar pin count and memory—consult ST's product selector or your ST representative for a pin-compatible migration path.

What is STM8AF6226TASSSY's listed speed?

The core runs at up to 16 MHz. That clock rate sets the timing budget for control-loop execution and communication baud rates on the I²C, LINbus, SPI, and UART interfaces.