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STMicroelectronics STM8AF5288TDY

Name: STM8AF5288TDY
Brand: STMicroelectronics
SKU: STM8AF5288TDY
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM8AF5288TDY

Manufacturer:: STMicroelectronics

Category:: Microcontrollers

Package:: 48-LQFP

Datasheet:: STM8AF5288TDY.pdf

Description:: IC MCU 8BIT 64KB FLASH 48LQFP

Quantity:: RFQ Add To RFQ list

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Inventory:3,376

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Product details

Overview

STM8AF5288TDY from STMicroelectronics is an AEC-Q100 Grade 0 qualified automotive 8-bit microcontroller featuring a 24 MHz STM8A core, 128 Kbyte Flash program memory with 20-year data retention at 55 °C, 2 Kbyte true data EEPROM (300 kcycle endurance), and integrated CAN 2.0B interface operating up to 1 Mbit/s. It supports LIN 2.2-compliant master/slave operation, 10-bit ADC with 16 multiplexed channels, and operates across –40 °C to 150 °C for engine control unit (ECU) and body electronics applications.

For engineers reviewing the STM8AF5288TDY datasheet, STM8AF5288TDY pinout, STM8AF5288TDY application, or STM8AF5288TDY equivalent, key selection criteria include automotive-grade temperature range (–40 °C to 150 °C), CAN/LIN coexistence capability, on-chip data EEPROM endurance, high-sink I/O robustness, and clock security system with monitor for fail-safe timing integrity.

Technical Context

The STM8AF5288TDY implements a Harvard-architecture STM8A CPU with 3-stage pipeline and average 1.6 cycles/instruction execution, delivering 10 MIPS at 16 MHz. Its clock system integrates user-trimmable 16 MHz RC and low-power 128 kHz RC oscillators, plus external crystal support up to 24 MHz with clock security monitoring.

Interrupt handling uses a nested controller with 32 vectors and up to 37 external interrupts mapped across 5 vectors. The peripheral set includes an advanced control timer with dead-time insertion and complementary outputs, two general-purpose 16-bit timers, and a dedicated auto-wakeup timer for low-power operation.

Key Specifications

Parameter	Value and Actual Design Meaning
Core Architecture	STM8A 8-bit Harvard core with 3-stage pipeline; enables deterministic real-time response in safety-critical automotive functions.
Max fCPU	24 MHz; supports time-critical control loops in ECU and transmission control modules.
Flash Memory	128 Kbyte Flash with 20-year data retention at 55 °C; suitable for long-lifecycle automotive firmware storage.
Data EEPROM	2 Kbyte true data EEPROM with 300 kcycle endurance; enables reliable parameter logging and calibration storage.
CAN Interface	CAN 2.0B compliant, 1 Mbit/s data rate; meets ISO 11898-1 for in-vehicle network communication.
ADC Resolution	10-bit SAR ADC with ≤2 LSB total unadjusted error (TUE); provides sufficient precision for sensor signal acquisition.
Operating Temperature	–40 °C to +150 °C; qualified per AEC-Q100 Grade 0 for under-hood applications including engine management.
I/O Count	Up to 68 user pins including 11 high-sink I/Os; supports direct drive of LEDs, relays, and discrete loads without external buffers.

Pinout & Package

LQFP64 package (10 × 10 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, automotive-qualified lead-free finish.

Pin/Terminal	Circuit Role	Design Meaning
VDD	Power supply input	3.0–5.5 V main supply rail; decoupled via external 100 nF capacitor near pin for stable core operation.
VSS	Ground reference	Digital ground return path; requires low-inductance connection to PCB ground plane for noise immunity.
NRST	Active-low reset input	Asynchronous reset trigger with internal pull-up; accepts external reset IC or microcontroller-initiated reset.
PA0–PA7	General-purpose I/O port A	Configurable as digital input/output, analog input (ADC), or alternate function (TIM1, USART, SPI); supports high-sink capability (20 mA).
PB0–PB7	General-purpose I/O port B	Supports CAN TX/RX (PB5/PB6), LINUART (PB1), and TIM2/3 channels; includes internal pull-ups/pull-downs.
PC0–PC7	General-purpose I/O port C	Provides ADC channel inputs (PC0–PC7), I2C (PC5/PC6), and SPI (PC3/PC4); tolerant to current injection.
PD0–PD7	General-purpose I/O port D	Includes TIM1 complementary outputs (PD0–PD2), USART (PD5/PD6), and external interrupt sources (PD3/PD4).
PE0–PE7	General-purpose I/O port E	Supports TIM4, SPI, and additional ADC inputs; configured via alternate function remapping registers.

Key Features

Feature	Design Value
AEC-Q100 Grade 0 qualification	Validated for continuous operation at 150 °C ambient; eliminates derating requirements in high-temperature engine compartments.
Integrated CAN 2.0B controller	Hardware-based message filtering, FIFO buffering, and automatic retransmission; reduces CPU overhead in networked ECUs.
LIN 2.2-compliant UART	Automatic resynchronization and master/slave mode support; enables interoperability with legacy LIN sensors and actuators.
True data EEPROM	2 Kbyte nonvolatile memory with 300 kcycle write endurance; avoids external serial EEPROM for calibration storage.
Advanced control timer (TIM1)	16-bit timer with 4 CAPCOM channels, 3 complementary outputs, and programmable dead-time insertion; supports 3-phase motor control.
Robust I/O design	Immunity to current injection up to 100 mA; prevents latch-up during load dump or ESD events in automotive environments.

Applications

Engine Control Unit (ECU)

Transmission Control Module (TCM)

Use Scenario: Real-time fuel injection timing, spark advance calculation, and knock detection using analog sensor inputs.

IC Role / Device Role / Timing Role: Primary control MCU executing closed-loop PID algorithms with sub-millisecond interrupt latency.

Use Value: 10-bit ADC with 16-channel multiplexing captures crankshaft position, throttle angle, and oxygen sensor signals simultaneously.

Use Scenario: Gear shift logic, solenoid driver control, and torque converter clutch management in automatic transmissions.

IC Role / Device Role / Timing Role: Safety-critical actuator controller with CAN-based coordination to engine and chassis ECUs.

Use Value: Integrated CAN 2.0B interface ensures deterministic 1 Mbit/s messaging for synchronized gear engagement commands.

Body Control Module (BCM)

Electric Power Steering (EPS)

Use Scenario: Centralized management of lighting, door locks, window lifts, and HVAC fan speed.

IC Role / Device Role / Timing Role: Low-power supervisory MCU with LIN slave capability for distributed node communication.

Use Value: LINUART supports automatic resynchronization to tolerate bus voltage fluctuations in 12 V vehicle systems.

Use Scenario: Torque assist computation, motor phase current sensing, and fault monitoring in brushless EPS motors.

IC Role / Device Role / Timing Role: Motor control MCU with advanced timer (TIM1) generating PWM with dead-time insertion.

Use Value: Complementary PWM outputs with programmable dead-time prevent shoot-through in 3-phase inverter bridges.

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive 8-bit microcontroller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STM8AF5286TDY	64 Kbyte Flash, same 2 Kbyte EEPROM, identical peripherals and pinout; lower memory density.	Suitable for cost-sensitive BCM or lighting control where firmware footprint < 64 Kbyte.	Select when full 128 Kbyte Flash is unnecessary and BOM cost optimization is prioritized.
STM8AF52A8TDY	128 Kbyte Flash, enhanced CAN FD readiness (no native FD support), same temperature grade and package.	Preferred for next-generation platforms requiring future CAN FD migration path despite current CAN 2.0B use.	Choose when forward compatibility with CAN FD infrastructure is required in long-term vehicle programs.

Compared with STM8AF5286TDY, the STM8AF5288TDY offers double Flash capacity for complex diagnostics and OTA update support; versus STM8AF52A8TDY, it lacks CAN FD protocol stack hardware but delivers identical real-time performance and reliability at lower gate count.

Availability

STM8AF5288TDY is available at Aetrix Electronics and suitable for engine control units, transmission control modules, and body control modules requiring stable component supply across extended automotive lifecycles.

Supply support for STM8AF5288TDY includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.

The STM8A automotive microcontroller product line targets cost-effective, high-reliability embedded control in harsh environments, with emphasis on AEC-Q100 compliance, functional safety support, and long-term supply stability for Tier 1 suppliers.

FAQ

What is the maximum operating junction temperature for STM8AF5288TDY?

The device is rated for operation up to 150 °C ambient temperature and has a maximum junction temperature of 175 °C under specified thermal conditions. This rating is validated per AEC-Q100 Grade 0 test requirements and assumes proper PCB thermal design with the exposed thermal pad soldered to a copper pour.

Does STM8AF5288TDY support debug via SWIM interface?

Yes, it features a Single Wire Interface Module (SWIM) supporting full-speed in-circuit debugging and programming using ST-LINK/V2 or compatible tools. SWIM operates at up to 2 MHz and allows breakpoint setting, register inspection, and flash memory read/write without halting real-time peripherals.

How many CAN message objects does the on-chip CAN controller support?

The beCAN peripheral supports 16 message objects with configurable acceptance filters and three dedicated receive/transmit mailboxes. Each mailbox includes identifier masking, data length control, and automatic retransmission on arbitration loss-enabling robust implementation of J1939 or CANopen protocols.

Is the 2 Kbyte data EEPROM accessible during program execution?

Yes, the true data EEPROM supports concurrent read-while-write operation: code execution from Flash continues uninterrupted during EEPROM write cycles. Write operations require 5 ms per byte and are managed by hardware sequencer with error detection and correction logic.

STM8AF5288TDY Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 48-LQFP

Series:: STM8A

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Core Processor:: STM8A

Core Size:: 8-Bit

Speed:: 24MHz

Connectivity:: CANbus, I2C, LINbus, SPI, UART/USART

Peripherals:: Brown-out Detect/Reset, POR, PWM, WDT

Number of I/O:: 38

Program Memory Size:: 64KB (64K x 8)

Program Memory Type:: FLASH

EEPROM Size:: 2K x 8

RAM Size:: 6K x 8

Voltage - Supply (Vcc/Vdd):: 3V ~ 5.5V

Data Converters:: A/D 10x10b

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 150°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:

STM8AF5288TDY FAQ

1.How can I place an order for STM8AF5288TDY through Aetrix?

Please submit a Request for Quotation (RFQ) for STM8AF5288TDY on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for STM8AF5288TDY reliable?

The price and inventory of STM8AF5288TDY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8AF5288TDY is usually 5 days.

3.What payment methods are accepted for STM8AF5288TDY?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8AF5288TDY transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM8AF5288TDY?

STM8AF5288TDY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM8AF5288TDY order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for STM8AF5288TDY?

For technical support, including STM8AF5288TDY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8AF5288TDY requirements.

6.How does Aetrix verify that STM8AF5288TDY is sourced from the original manufacturer or authorized distributors?

All STM8AF5288TDY products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM8AF5288TDY meets industry standards.

7.What is the process for return or replacement of STM8AF5288TDY?

All STM8AF5288TDY units undergo pre-shipment inspection (PSI). If there is an issue with STM8AF5288TDY, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The STM8AF5288TDY part is unused and in its original packaging.

Return procedure for STM8AF5288TDY:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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