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STMicroelectronics STM8AF52A8TCX — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM8AF52A8TCX 8-bit MCU, AEC-Q100, 24MHz, 128KB Flash, 48-LQFP

MPNSTM8AF52A8TCX
NRND

STMicroelectronics STM8A series automotive 8-bit MCU, STM8AF52A8TCX, 24MHz core, 128KB Flash, 6KB RAM, 2KB EEPROM, CAN 2.0B and LIN, 38 GPIO, 10-channel 10-bit ADC, 48-LQFP, -40°C to 125°C.

$3.6362Ref. price · indicative, final on quote
STMicroelectronics STM8AF52A8TCX datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8AF52A8TCX 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)
Speed24MHz
PackageTape & Reel (TR)
RAM size6K x 8
Core size8-Bit
EEPROM size2K x 8
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityCANbus, I²C, LINbus, SPI, UART/USART
Number of i (O)38
Core processorSTM8A
Case48-LQFP
Data convertersA/D 10x10b
Program memory size128KB (128K x 8)

Product details

Automotive 8-bit MCU with CAN and LIN — what you're getting

The STM8AF52A8TCX is an 8-bit MCU from STMicroelectronics' STM8A automotive series, qualified to AEC-Q100 and rated for the full -40°C to 125°C operating range. The peripheral set includes a 10-channel 10-bit ADC, PWM timers, and a watchdog, plus CAN 2.0B and LIN bus interfaces for automotive network integration. This is a genuine automotive-grade part, not an industrial derivative with a temperature-range sticker — the AEC-Q100 qualification and the STM8A series designation confirm it was developed and validated to the PPAP documentation an OEM auditor will expect.

AEC-Q100 qualification — what grade and what it means

The STM8AF52A8TCX is AEC-Q100 qualified and belongs to the STM8A automotive series.

48-LQFP footprint — board integration note

The STM8AF52A8TCX comes in a 48-pin LQFP package, surface-mount for reflow assembly. The 38 GPIO lines are distributed around the perimeter.

Frequently asked questions

What is STM8AF52A8TCX's listed speed?

The STM8AF52A8TCX runs at 24 MHz, which is a moderate clock speed for an 8-bit MCU core — sufficient for CAN message handling, LIN slave tasks, and general body-control logic, but not intended for high-throughput signal processing.

What automotive qualification does STM8AF52A8TCX carry?

It is AEC-Q100 qualified and belongs to ST's STM8A automotive series, with an operating temperature range of -40°C to 125°C that covers underhood and engine-bay environments. The qualification package supports PPAP documentation for OEM tier-1 submissions.