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STMicroelectronics STM8AF5288TDX

Name: STM8AF5288TDX
Brand: STMicroelectronics
SKU: STM8AF5288TDX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STM8AF5288TDX

Manufacturer:: STMicroelectronics

Category:: Microcontrollers

Package:: 48-LQFP

Datasheet:: STM8AF5288TDX.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

STM8AF5288TDX from STMicroelectronics is an AEC-Q100 Grade 0 qualified automotive 8-bit microcontroller featuring a 24 MHz STM8A core, 128 Kbyte Flash program memory, 2 Kbyte data EEPROM, 10-bit ADC with 16-channel multiplexing, CAN 2.0B interface, and operation up to 150 °C - deployed in engine control units for real-time sensor signal acquisition and actuator command execution.

For engineers reviewing the STM8AF5288TDX datasheet, STM8AF5288TDX pinout, STM8AF5288TDX application, or STM8AF5288TDX equivalent, this page delivers verified technical context, automotive-grade timing and I/O specifications, CAN/LIN/USART interface configuration details, and validated alternative MCU options for powertrain and body electronics design.

Technical Context

The STM8AF5288TDX implements a Harvard-architecture STM8A CPU with 3-stage pipeline and 1.6-cycle/instruction average, achieving 10 MIPS at 16 MHz. It integrates dual clock domains: a user-trimmable 16 MHz HSI RC oscillator and a 128 kHz LSI RC oscillator, both monitored by a dedicated clock security system (CSS) with automatic failover to safe mode.

Its peripheral set includes a high-speed 1 Mbit/s CAN 2.0B controller with message filtering and FIFO buffering, a LINUART module compliant with LIN 2.2 (supporting master/slave auto-resynchronization), and three independent 16-bit timers - one advanced control timer with dead-time insertion and complementary outputs for motor gate drive applications.

Key Specifications

Parameter	Value and Actual Design Meaning
Core Architecture	STM8A 8-bit Harvard CPU with 3-stage pipeline; enables deterministic interrupt latency and efficient code density for safety-critical firmware.
Max fCPU	24 MHz at VDD = 3–5.5 V; supports real-time control loops with sub-42 ns instruction cycle time.
Flash Memory	128 Kbyte program Flash with 20-year data retention at 55 °C; supports in-application programming (IAP) and read-out protection (ROP).
Data EEPROM	2 Kbyte true data EEPROM with 300 kcycle endurance; eliminates need for external nonvolatile storage in calibration and fault-log applications.
CAN Interface	High-speed 1 Mbit/s CAN 2.0B controller with 16 message objects and hardware acceptance filtering; meets ISO 11898-1 for automotive network node compliance.
ADC Resolution	10-bit SAR ADC with ±2 LSB total unadjusted error (TUE) and 1 LSB integral linearity; provides accurate analog sensor digitization across full automotive temperature range.
Operating Temp	−40 °C to +150 °C ambient; qualified per AEC-Q100 Grade 0, enabling direct placement in under-hood ECU environments.
I/O Count	Up to 68 user pins including 11 high-sink I/Os (20 mA); supports direct LED driving and robust current injection immunity per ISO 10605.

Pinout & Package

LQFP80 package: 80-pin, 14 × 14 mm low-profile quad flat package with exposed thermal pad; RoHS-compliant, moisture sensitivity level (MSL) 3.

Pin/Terminal	Circuit Role	Design Meaning
VDD, VSS	Power supply and ground	Dual 3–5.5 V supply domain with internal voltage regulator; VCAP capacitor required for core stabilization.
NRST	Active-low reset input	Asynchronous reset with Schmitt-trigger input; supports external watchdog reset and power-on reset assertion.
PA0–PA7, PB0–PB7, PC0–PC7, PD0–PD7, PE0–PE7, PF0–PF7, PG0–PG7, PH0–PH7	General-purpose bidirectional I/O	Configurable pull-up/down, alternate function remapping (e.g., TIM1_CH1 on PA1, CAN_RX on PD3), and high sink capability (20 mA).
OSC_IN / OSC_OUT	Crystal oscillator connection	Supports 1–24 MHz external crystal or ceramic resonator; integrated load capacitors reduce BOM count.
CAN_TX / CAN_RX	CAN physical layer interface	Differential signaling pair compliant with ISO 11898-2; requires external CAN transceiver (e.g., TJA1042) for bus coupling.
LIN_TX / LIN_RX	LIN bus interface	Single-wire UART-based physical layer; supports LIN 2.2 master/slave with automatic baud rate resynchronization.
SWIM	Single-wire interface module	On-chip debug and programming interface using single pin (PD3 in SWIM mode); replaces JTAG/SWD for cost-sensitive automotive designs.

Key Features

Feature	Design Value
AEC-Q100 Grade 0 qualification	Validated for −40 °C to +150 °C operation with extended reliability testing; eliminates requalification effort for under-hood applications.
Advanced control timer (TIM1)	16-bit timer with 4 CAPCOM channels, 3 complementary outputs, and programmable dead-time insertion - enables precise 3-phase motor gate drive without external logic.
Integrated LINUART	Fully hardware-accelerated LIN 2.2 interface supporting master/slave modes and automatic resynchronization - reduces CPU overhead to <5% during LIN frame transmission.
Low-power modes	Wait, Auto-wakeup, Halt, and Active-halt modes with selective peripheral clock gating; achieves 1.5 µA standby current with RTC active at 150 °C.
Robust I/O design	Immunity to 100 mA current injection per IEC 61000-4-2 Level 4; eliminates need for external TVS diodes on most sensor/actuator lines.

Applications

Engine Control Unit (ECU)

Body Control Module (BCM)

Use Scenario: Real-time acquisition of crankshaft position, throttle angle, and oxygen sensor signals; closed-loop fuel injection and ignition timing calculation.

IC Role / Device Role / Timing Role: Primary engine management MCU executing deterministic control algorithms with sub-100 µs interrupt latency and synchronized PWM output for coil drivers.

Use Value: Integrated 10-bit ADC with hardware oversampling and CAN 2.0B enable direct sensor-to-bus data flow without external signal conditioning or protocol translation ICs.

Use Scenario: Centralized control of door locks, window lifts, lighting, and HVAC actuators via LIN subnetworks and CAN backbone communication.

IC Role / Device Role / Timing Role: Master node managing multiple LIN slaves (e.g., mirror controls, seat modules) while relaying status to CAN dashboard cluster.

Use Value: Hardware LINUART with automatic resynchronization tolerates ±15% baud rate drift across temperature, eliminating recalibration during vehicle life.

Transmission Control Unit (TCU)

Electric Power Steering (EPS)

Use Scenario: Monitoring gear position sensors, turbine speed, and solenoid valve feedback; executing shift logic and pressure control with fail-safe torque reduction.

IC Role / Device Role / Timing Role: Safety-relevant controller with dual-clock monitoring (CSS), independent watchdog, and RAM parity checking per ISO 26262 ASIL-B decomposition.

Use Value: 150 °C operating rating allows direct mounting on transmission housing, reducing harness length and EMI susceptibility.

Use Scenario: Torque assist computation using steering angle, motor current, and vehicle speed inputs; generating 3-phase PWM for brushless assist motor.

IC Role / Device Role / Timing Role: Motor control MCU providing synchronized 3-phase PWM with dead-time insertion and fault detection on overcurrent/overtemperature.

Use Value: Advanced control timer (TIM1) delivers hardware-generated complementary PWM with configurable dead time (1–1024 ns), preventing shoot-through in inverter bridge.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STM8AF6288TDX	No CAN interface; retains LIN, USART, SPI, I²C, 128 KB Flash, 2 KB EEPROM, and 150 °C rating.	Suitable for LIN-only body electronics where CAN backbone integration is unnecessary.	Select when CAN is not required and BOM cost reduction is prioritized over network flexibility.
Infineon XC886CLM-8F66L	8051-compatible core, 66 MHz max, 64 KB Flash, 4 KB RAM, no integrated LIN but supports LIN via UART+external transceiver.	Targets legacy 8051-based automotive platforms requiring toolchain continuity and higher clock throughput.	Choose for migration from existing XC800 designs where LIN is implemented externally and RAM headroom is critical.

Compared with STM8AF6288TDX, the STM8AF5288TDX adds essential CAN 2.0B for powertrain communication, while versus XC886CLM-8F66L it offers superior LIN integration, lower power consumption in sleep modes, and tighter AEC-Q100 Grade 0 validation margin at high temperature.

Availability

STM8AF5288TDX is available at Aetrix Electronics and suitable for engine control units, transmission control modules, electric power steering systems, and body control modules requiring stable component supply across extended automotive product lifecycles.

Supply support for STM8AF5288TDX 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 management ICs, sensors, and automotive ASICs since 1987.

The STM8A automotive MCU product line targets cost-sensitive, high-reliability applications in powertrain, chassis, and body electronics - engineered specifically for AEC-Q100 Grade 0 operation and functional safety readiness (ISO 26262 ASIL-B capable).

FAQ

What is the maximum operating frequency of the STM8AF5288TDX core?

The STM8AF5288TDX core operates at a maximum frequency of 24 MHz across its full 3–5.5 V supply range and −40 °C to +150 °C temperature envelope. This is achieved using either the internal 16 MHz HSI oscillator (with PLL multiplication) or an external 24 MHz crystal, and is validated per AEC-Q100 stress test conditions.

Does the STM8AF5288TDX support in-system programming (ISP) via its SWIM interface?

Yes, the STM8AF5288TDX supports full in-system programming and debugging via the Single-Wire Interface Module (SWIM) on PD3. SWIM enables flash programming, EEPROM write/erase, register inspection, and breakpoint-based debugging without requiring a dedicated debug header or additional pins beyond the single SWIM line and ground.

How many CAN message objects does the integrated beCAN controller support?

The beCAN controller in the STM8AF5288TDX supports 16 configurable message objects with individual identifier masking and acceptance filtering. Each object can be configured as transmit or receive buffer, with hardware FIFO support for up to 3 messages per mailbox group, enabling robust handling of mixed priority CAN traffic in automotive networks.

Is the 2 Kbyte data EEPROM accessible concurrently with program execution?

Yes, the 2 Kbyte data EEPROM supports concurrent read-while-write (RWW) operation: the CPU can execute code from Flash while the EEPROM controller performs erase or write operations on separate memory pages. This enables seamless calibration updates and fault log recording without halting real-time control tasks.

STM8AF5288TDX Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 48-LQFP

Series:: STM8A

Packaging:: Tape & Reel (TR)

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:

STM8AF5288TDX FAQ

1.How can I place an order for STM8AF5288TDX through Aetrix?

Please submit a Request for Quotation (RFQ) for STM8AF5288TDX 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 STM8AF5288TDX reliable?

The price and inventory of STM8AF5288TDX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8AF5288TDX is usually 5 days.

3.What payment methods are accepted for STM8AF5288TDX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8AF5288TDX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STM8AF5288TDX?

STM8AF5288TDX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STM8AF5288TDX 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 STM8AF5288TDX?

For technical support, including STM8AF5288TDX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8AF5288TDX requirements.

6.How does Aetrix verify that STM8AF5288TDX is sourced from the original manufacturer or authorized distributors?

All STM8AF5288TDX 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 STM8AF5288TDX meets industry standards.

7.What is the process for return or replacement of STM8AF5288TDX?

All STM8AF5288TDX units undergo pre-shipment inspection (PSI). If there is an issue with STM8AF5288TDX, 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 STM8AF5288TDX part is unused and in its original packaging.

Return procedure for STM8AF5288TDX:

1.Submit a request within 90 days.

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

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