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STMicroelectronics STM8AF6226TCY — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM8AF6226TCY 8-bit MCU, AEC-Q100, 16 MHz, 32-LQFP

MPNSTM8AF6226TCY
NRND

STMicroelectronics STM8AF6226TCY, Automotive AEC-Q100 STM8A series, 8-bit MCU, 16 MHz, 8KB Flash, 1K x 8 RAM, 640 x 8 EEPROM, 28 I/O, I²C/LIN/SPI/UART, 7x10b ADC, -40 to 125°C, 32-LQFP.

$1.6321Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8AF6226TCY specifications
ParameterValue
SeriesAutomotive, AEC-Q100, STM8A
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))3V ~ 5.5V
Operating temperature-40°C ~ 125°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

It runs at 16 MHz from an internal oscillator, carries 8 KB of Flash program memory, 1K x 8 RAM, and 640 x 8 EEPROM — enough code and data space for a dedicated LIN slave node, a window-lift controller, or a sensor-interface module.

At 16 MHz, this core handles a 1 ms control loop with margin for LIN message handling and ADC reads. That is not a high-speed DSP number, but it is the right fit for a relay-coil driver or a brush-DC motor controller where the plant time constant is tens of milliseconds.

If you are starting a new design, look at the active STM8A family members with similar pinouts and peripheral sets; the 32-LQFP footprint is common across several density options.

Brown-out detect and POR keep the firmware from corrupting Flash on a sagging supply.

Housed in a 32-LQFP (7x7 mm) surface-mount package, with 28 I/O brought out. The pitch is standard for hand-assembly and reflow alike.

Frequently asked questions

What is the closest pin-compatible alternative to STM8AF6226TCY?

ST does not list a direct pin-compatible successor for this order code. The 32-LQFP footprint is shared across the STM8A family, so a higher-density sibling with the same package may drop in with a firmware update — confirm the peripheral and memory map against your application.

What is STM8AF6226TCY's listed speed?

The core runs at 16 MHz, driven by an internal oscillator — no external crystal required.

What is STM8AF6226TCY's automotive qualification?

It is AEC-Q100 qualified as part of ST's STM8A series, rated for automotive under-hood environments from -40°C to 125°C.