This means STMicroelectronics will not support new design-ins, and the part is on a path toward end-of-life. Buyers should identify a pin-compatible replacement within the STM8A family for any new BOM line.
STM8AF6266UCX 8-bit MCU, 16 MHz, 32 KB Flash, AEC-Q100
MPNSTM8AF6266UCX
NRND
STMicroelectronics STM8AF6266UCX, Automotive AEC-Q100 STM8A series, 8-bit MCU, 16 MHz, 32KB Flash, 2K x 8 RAM, 1K x 8 EEPROM, 25 I/O, I²C/LINbus/SPI/UART, 7x10b ADC, -40°C to 125°C, 32-VFQFN exposed pad.
$1.9692Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Series | Automotive, AEC-Q100, STM8A |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 3V ~ 5.5V |
| Operating temperature | -40°C ~ 125°C (TA) |
| Speed | 16MHz |
| Package | Tape & Reel (TR) |
| RAM size | 2K x 8 |
| Core size | 8-Bit |
| EEPROM size | 1K x 8 |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I²C, LINbus, SPI, UART/USART |
| Number of i (O) | 25 |
| Core processor | STM8A |
| Case | 32-VFQFN Exposed Pad |
| Data converters | A/D 7x10b |
| Program memory size | 32KB (32K x 8) |
Product details
Frequently asked questions
Is STM8AF6266UCX end-of-life or obsolete?
It is not yet discontinued, but STMicroelectronics will not support new design-ins. Existing production can still be sourced through independent channels.
What is the direct replacement for STM8AF6266UCX?
For a pin-compatible replacement, consult the STM8A family datasheet or contact STMicroelectronics directly. The STM8AF6266 base product number suggests a same-package variant may be available.