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STMicroelectronics STM8AF52A8TAX — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM8AF52A8TAX 8-bit MCU, 128KB Flash, 24MHz, 48-LQFP

MPNSTM8AF52A8TAX
NRND

STMicroelectronics STM8A series STM8AF52A8TAX, 8-bit MCU, 128KB (128K x 8) FLASH, 24MHz, 6K x 8 RAM, 2K x 8 EEPROM, 3V ~ 5.5V, -40°C ~ 85°C, 48-LQFP, 38 I/O, A/D 10x10b, CAN/I²C/LIN/SPI/UART.

$3.1938Ref. price · indicative, final on quote
STMicroelectronics STM8AF52A8TAX datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8AF52A8TAX specifications
ParameterValue
SeriesSTM8A
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))3V ~ 5.5V
Operating temperature-40°C ~ 85°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

8-bit MCU for automotive and industrial control — 128 KB Flash, 24 MHz, CAN and LIN onboard

NRND — plan a replacement for new designs

For a new BOM, evaluate a pin-compatible sibling within the STM8A family that carries an active lifecycle status.

The 128 KB Flash is sized for control firmware with a CAN/LIN stack and a modest bootloader; the 2 KB EEPROM holds calibration constants and fault logs without external storage. The 24 MHz core clock delivers about 20 MIPS — enough for a real-time control loop at a few kHz with headroom for protocol handling. The 10-channel, 10-bit ADC covers analog sensor inputs like temperature or position feedback.

Package and mounting — 48-LQFP footprint

The STM8AF52A8TAX is supplied in a 48-lead LQFP package (0.5 mm pitch) for surface-mount assembly.

Frequently asked questions

Is the STM8AF52A8TAX obsolete or still available?

It is still available for existing production but is not recommended for new project starts. For new designs, look at an active STM8A family member with a similar peripheral set.