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HomeProductsIntegrated Circuits (ICs)Embedded - MicrocontrollersSTM8AF5288TC
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STM8AF5288TC - STMicroelectronics

Manufacturer Part Number
STM8AF5288TC
Manufacturer
STMicroelectronics
Allelco Part Number
32D-STM8AF5288TC
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
4,680 pcs available, New & Original
Parts Description
IC MCU 8BIT 64KB FLASH 48LQFP
Package
48-LQFP (7x7)
Data sheet
-
RoHs Status
ROHS3 Compliant
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In stock: 4680

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Specifications

STM8AF5288TC Tech Specifications
STMicroelectronics - STM8AF5288TC technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics - STM8AF5288TC

Product Attribute Attribute Value
Manufacturer STMicroelectronics
Voltage - Supply (Vcc/Vdd) 3V ~ 5.5V
Supplier Device Package 48-LQFP (7x7)
Speed 24MHz
Series Automotive, AEC-Q100, STM8A
RAM Size 6K x 8
Program Memory Type FLASH
Program Memory Size 64KB (64K x 8)
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Package / Case 48-LQFP
Package Tray
Product Attribute Attribute Value
Oscillator Type Internal
Operating Temperature -40°C ~ 125°C (TA)
Number of I/O 38
Mounting Type Surface Mount
EEPROM Size 2K x 8
Data Converters A/D 10x10b
Core Size 8-Bit
Core Processor STM8A
Connectivity CANbus, I²C, LINbus, SPI, UART/USART
Base Product Number STM8

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN OBSOLETE

Parts Introduction

STM8AF5288TC Image
STM8AF5288TC (1)

Manufacturer Part Number

STM8AF5288TC

Manufacturer

STMicroelectronics

Introduction

The STM8AF5288TC is an 8-bit microcontroller designed by STMicroelectronics, targeting automotive applications with its high-performance capabilities and robust features tailored for harsh environments.

Product Features and Performance

Core Processor: STM8A, optimized for efficiency and speed

Speed: 24MHz, ensuring quick response and processing times

Peripherals: Includes Brown-out Detect/Reset, Power-on Reset, PWM, and Watchdog Timer for enhanced functionality

Program Memory Size: 64KB FLASH, for substantial codebase storage

EEPROM Size: 2KB, for non-volatile data storage

RAM Size: 6KB, facilitating efficient data manipulation and storage

Data Converters: A/D converters, 10 channels of 10 bits each, for analog to digital conversion

Connectivity: Embedded with CANbus, I2C, LINbus, SPI, UART/USART interfaces for diverse communication needs

Operating Temperature: -40°C to 125°C, suitable for automotive and industrial conditions

Oscillator Type: Internal, eliminating need for external clock sources

Product Advantages

Automotive-grade quality, AEC-Q100 qualified, ensures reliability in automotive applications

Wide voltage supply range (3V to 5.5V) offers flexibility in power supply design

Comprehensive connectivity options cater to modern communication requirements in embedded systems

High program memory size supports complex applications without the need for external memory components

Advanced peripheral set enhances the microcontroller’s functionality and reduces external component count

Key Technical Parameters

Core Size: 8-Bit

Number of I/O: 38

Grade: Automotive

Mounting Type: Surface Mount

Supplier Device Package: 48-LQFP (7x7)

Package / Case: 48-LQFP

Quality and Safety Features

Embedded safety features including Brown-out Detect/Reset and Watchdog Timer to prevent system failures

Operates reliably over a wide temperature range, ensuring performance under extreme conditions

Compatibility

Compatible with various communication protocols, enabling integration with numerous automotive and industrial systems

Application Areas

Primarily focused on automotive applications, also suitable for industrial, control systems, and embedded applications requiring high reliability and robust performance

Product Lifecycle

This product has been categorized as Obsolete, indicating it may be nearing the end of its production life. Replacement or upgrade options should be considered for future designs.

Several Key Reasons to Choose This Product

Designed specifically for automotive applications, ensuring high reliability and compliance with automotive standards

Rich set of peripherals and connectivity options reduces additional component requirements, simplifying design and lowering costs

Large internal memory capacities facilitate complex application development without external memory

Wide operating temperature range and robust quality features make it suitable for harsh environments

STMicroelectronics' reputation for producing high-quality, reliable components in the microcontroller market

Frequently Asked Questions(FAQ)

What are the key automotive-grade reliability considerations when selecting the STM8AF5288TC for engine control or body electronics applications?
The STM8AF5288TC is qualified to AEC-Q100 Grade 1, supporting an operating temperature range of -40°C to 125°C, making it suitable for under-hood and harsh automotive environments. Its internal oscillator maintains ±1% accuracy over this full temperature range, reducing dependency on external timing components. Combined with built-in brown-out detection, power-on reset, and watchdog timer, the STM8AF5288TC provides robust fault resilience critical for safety-related subsystems like throttle control or lighting management.
How does the STM8AF5288TC’s memory architecture influence real-time performance in CAN-based communication systems?
With 6KB of RAM and 64KB of embedded Flash, the STM8AF5288TC supports efficient buffering of CAN messages and protocol stacks without requiring external memory. The single-cycle access Flash enables deterministic instruction execution at 24MHz, minimizing latency during interrupt-driven CAN frame processing. This architecture is particularly beneficial in LIN/CAN gateway designs where timely message forwarding is essential.
Can the STM8AF5288TC operate reliably with a 3.3V supply in a mixed-voltage automotive environment, and what implications does this have for peripheral interfacing?
Yes, the STM8AF5288TC supports a Vcc range of 3V to 5.5V, allowing direct 3.3V operation. However, when interfacing with 5V-tolerant peripherals via I/O pins, level-shifting may still be required despite the wide supply tolerance, as input thresholds are referenced to Vdd. Designers should verify signal integrity using the I/O port’s VIH/VIL specifications relative to the actual supply voltage to avoid marginal logic states.
What trade-offs exist between using the internal oscillator versus an external crystal with the STM8AF5288TC in precision timing applications?
The internal RC oscillator in the STM8AF5288TC offers ±1% accuracy over temperature and voltage, sufficient for UART, LIN, and basic PWM functions. However, for CAN communication requiring tighter bit timing (e.g., <±0.5%), an external crystal is recommended to meet ISO 11898-1 compliance. The trade-off involves BOM cost, board space, and startup time—internal oscillator enables faster wake-up from halt mode, beneficial in low-power diagnostic nodes.
How does the STM8AF5288TC compare to the STM8AF5288TCY in terms of availability, packaging, and long-term sourcing strategy?
The STM8AF5288TC and STM8AF5288TCY are functionally identical, but the 'Y' suffix typically denotes a different reel or packaging configuration, often optimized for automated assembly lines. Both share the same 48-LQFP (7x7mm) footprint and MSL 3 rating. Engineers should verify current stock and lifecycle status with authorized distributors, as suffix variations may reflect regional logistics rather than electrical differences.
Is the STM8AF5288TC suitable for safety-critical automotive functions requiring ISO 26262 compliance, and what architectural features support functional safety?
While the STM8AF5288TC is not certified to ISO 26262, its AEC-Q100 qualification and hardware safety mechanisms—such as independent watchdog, clock security system (CSS), and dual independent resets—enable use in ASIL-A orQM-level systems when paired with proper software safeguards. Designers must implement additional diagnostic layers in firmware to meet higher ASIL requirements, leveraging the MCU’s fault detection peripherals for monitoring.
What are the practical implications of the STM8AF5288TC’s 10-bit ADC performance in sensor signal conditioning for automotive applications?
The STM8AF5288TC integrates ten 10-bit ADC channels with a typical conversion time of 1µs. In applications like throttle position sensing or cabin temperature monitoring, this resolution provides ~5mV steps at 5V reference, adequate for most analog feedback loops. However, for high-precision measurements (e.g., battery current sensing), external amplification and filtering are recommended to mitigate noise, as the ADC lacks built-in PGA or oversampling.
How does the I/O count and peripheral multiplexing on the STM8AF5288TC affect PCB layout complexity in compact automotive modules?
With 38 I/O pins and shared peripheral functions (e.g., SPI and UART on alternate pin mappings), the STM8AF5288TC enables flexible routing in space-constrained designs such as door control units. Careful pin assignment using ST’s STM8CubeMX tool minimizes cross-talk and simplifies layer stacking. However, simultaneous use of high-speed peripherals like SPI and PWM may require grounding guard traces due to limited pin spacing in the 7x7mm LQFP package.
What power management strategies are effective when using the STM8AF5288TC in always-on automotive subsystems like telematics or security modules?
The STM8AF5288TC supports multiple low-power modes, including active-halt with RTC. In active-halt, current drops to ~4µA while retaining RAM and register states, enabling periodic wake-up via external interrupts or internal timers. For telematics units drawing power from the vehicle battery, combining this mode with event-driven CAN wake-up frames significantly reduces quiescent current without sacrificing responsiveness.
How does the STM8AF5288TC’s Flash endurance and data retention compare to competing 8-bit automotive MCUs in long-life vehicle applications?
The STM8AF5288TC guarantees 10,000 write/erase cycles per Flash block and 20-year data retention at 85°C, aligning with typical automotive lifecycle expectations. Compared to some legacy 8-bit devices with lower endurance, this makes it suitable for firmware update routines and calibration storage. However, frequent logging to Flash should be avoided; instead, use the 2KB EEPROM for parameter storage to preserve Flash longevity.
What design precautions are necessary to ensure EMC compliance when using the STM8AF5288TC in a radiated emissions-sensitive environment?
The 24MHz internal clock and fast edge rates on I/O pins can generate harmonic emissions. To mitigate this, use series termination resistors on high-speed lines, minimize loop areas in oscillator and power paths, and employ a solid ground plane beneath the 48-LQFP package. The STM8AF5288TC’s spread-spectrum clocking (if enabled via option bytes) can further reduce peak emissions during CAN or SPI bursts.
Can the STM8AF5288TC support dual-protocol communication (e.g., CAN and LIN) simultaneously in a body controller application?
Yes, the STM8AF5288TC integrates independent CAN and LIN/USART peripherals, allowing concurrent operation. For example, CAN can handle high-priority chassis messages while LIN manages low-speed sensors like window switches. Firmware must prioritize interrupt handling to avoid LIN frame errors during CAN bus congestion, leveraging the MCU’s nested interrupt controller for deterministic response.
What are the implications of the STM8AF5288TC’s MSL 3 rating for manufacturing and rework processes in high-volume automotive production?
MSL 3 indicates the STM8AF5288TC can withstand 168 hours of floor life after moisture exposure before requiring baking. This allows flexible handling in SMT lines but necessitates dry storage (e.g., sealed bags with desiccant) and strict FIFO rotation. During rework, peak reflow temperatures must not exceed 260°C to prevent package delamination, aligning with JEDEC J-STD-020 standards.
How does the STM8AF5288TC’s peripheral set compare to the STM32G0 series for cost-sensitive automotive applications requiring basic connectivity?
The STM8AF5288TC offers a lower-cost entry point with proven automotive reliability and sufficient peripherals for non-safety body electronics. In contrast, the STM32G0 provides higher performance (64MHz Cortex-M0+) and advanced features like DMA and hardware CRC, but at increased complexity and power. For applications like rain sensors or HVAC control, the STM8AF5288TC’s balance of integration and cost often outweighs the need for 32-bit capabilities.
What debugging and development challenges are commonly encountered when porting legacy code to the STM8AF5288TC from older STM8 variants?
While the STM8 core is consistent across variants, differences in peripheral register maps and clock tree configurations between STM8S and STM8A families can cause initialization issues. The STM8AF5288TC’s enhanced clock system requires careful setup of the HSI divider and peripheral clock gating. Using ST’s STVD or Cosmic compiler with updated SPL libraries ensures correct peripheral access and avoids hard faults during migration.

Parts with Similar Specifications

The three parts on the right have similar specifications to STMicroelectronics STM8AF5288TC

Product Attribute STM8AF5288TCY STM8AF5288TCX STM8AF5289TCX STM8AF5288TAY
Part Number STM8AF5288TCY STM8AF5288TCX STM8AF5289TCX STM8AF5288TAY
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Program Memory Type - - - -
Speed - - - -
Number of I/O - - - -
RAM Size - - - -
Voltage - Supply (Vcc/Vdd) - - - -
Series - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Connectivity - - - -
Program Memory Size - - - -
Oscillator Type - - - -
Peripherals - - - -
Core Size - - - -
EEPROM Size - - - -
Data Converters - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Core Processor - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Base Product Number - DAC34H84 MAX500 ADS62P42

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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America United States 5
Brazil 7
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United Kingdom 4
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New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
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STM8AF5288TC Image

STM8AF5288TC

STMicroelectronics
32D-STM8AF5288TC

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