Skip to main content
Log in
STMicroelectronics STM8AF52A8TDY — Microcontrollers & Processors (MCU / MPU / DSP)

STM8AF52A8TDY 8-bit MCU, 24MHz, AEC-Q100, 128KB Flash

MPNSTM8AF52A8TDY
NRND

STMicroelectronics STM8A series, STM8AF52A8TDY, 8-bit MCU, 24MHz, 128KB Flash, 6K x 8 RAM, 2K x 8 EEPROM, AEC-Q100, -40 to 150°C, 48-LQFP.

$7.4100Ref. price · indicative, final on quote
STMicroelectronics STM8AF52A8TDY datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8AF52A8TDY specifications
ParameterValue
SeriesAutomotive, AEC-Q100, STM8A
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))3V ~ 5.5V
Operating temperature-40°C~150°C(TA)
Speed24MHz
PackageTray
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

The part comes in a 48-pin LQFP package for surface-mount assembly.

That means STMicroelectronics is not actively encouraging new designs to start with it, though it remains available for existing production programs through the independent distribution channel. For a new design, you will want to evaluate the official successor or a pin-compatible alternative within the STM8A family.

Memory and peripheral fit for body/lighting modules

The CAN interface (2.0B) and LIN controller cover the two dominant automotive buses, so a single part can serve as the gateway between a CAN backbone and LIN sub-nodes.

Package and temperature — can I swap it on site?

The 48-pin LQFP package is a common footprint, but it is not socketed — you will need a hot-air station or a reflow oven to replace it. The -40°C to 150°C rating means it lives under-hood or on an engine-mounted ECU without derating.

Frequently asked questions

Where can I buy STM8AF52A8TDY and how do I get a price?

Submit an RFQ against this page to confirm current availability and pricing — we quote to order, so you get the real-time market number, not a stale list price.

What is the equivalent for STM8AF52A8TDY?

Within the STM8A family, the STM8AF52A8TAY is a close sibling — it shares the same core, memory, and peripheral set but differs in the package variant. For a direct pin-compatible drop-in, check the STM8AF52A8x series in the same 48-LQFP footprint. For new designs, ST recommends moving to the STM8AF62xx or STM8AF72xx series, which offer higher performance and longer availability.

What is the difference between STM8AF52A8TDY and STM8AF52A8TAY?

Both are 8-bit automotive MCUs with 128 KB Flash, 6 K RAM, 2 K EEPROM, CAN/LIN, and the same -40°C to 150°C rating. The difference is in the shipping medium and temperature grade suffix: the TDY variant comes in tray packaging, while the TAY variant is typically supplied in tape-and-reel. Functionally they are identical.

Does STM8AF52A8TDY have a CAN interface?

This makes it suitable as a node on a vehicle's CAN bus or as a LIN master/slave.