My Inquiry
My Account
STMicroelectronics STM8AF6288TAX
- Part No.:
- STM8AF6288TAX
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM8AF6288TAX.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,222
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM8AF6288TAX 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 communication, 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 STM8AF6288TAX datasheet, STM8AF6288TAX pinout, STM8AF6288TAX application, or STM8AF6288TAX equivalent, key selection criteria include automotive-grade temperature range (–40 °C to 150 °C), CAN/LIN coexistence capability, on-chip 128 kHz and 16 MHz RC oscillators with trimming, high-sink I/Os (11 pins), and Flash/E2PROM data retention under thermal stress.
Technical Context
The STM8AF6288TAX 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 HSI and low-power 128 kHz LSI 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 two 16-bit general-purpose timers (each with up to 3 CAPCOM channels), one advanced control timer with dead-time insertion and complementary outputs, and auto-wakeup/ watchdog timers supporting multiple low-power modes (Wait, Halt, Active-halt).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | STM8A 8-bit Harvard core with 3-stage pipeline; enables deterministic timing and 10 MIPS @ 16 MHz. |
| Max fCPU | 24 MHz; supports real-time deterministic response in safety-critical automotive subsystems. |
| Flash Memory | 128 Kbyte Flash with 20-year data retention at 55 °C; suitable for long-lifecycle ECU firmware storage. |
| Data EEPROM | 2 Kbyte true data EEPROM with 300 kcycle endurance; enables robust parameter logging and calibration storage. |
| CAN Interface | High-speed CAN 2.0B compliant up to 1 Mbit/s; supports fault-tolerant vehicle network communication. |
| ADC Resolution | 10-bit SAR ADC with ±2 LSB total unadjusted error and 16 multiplexed input channels; meets ASIL-B sensor signal acquisition requirements. |
| Operating Temp | –40 °C to +150 °C ambient; qualified per AEC-Q100 Grade 0 for under-hood automotive deployment. |
Pinout & Package
LQFP64 package: 64-pin, 10 × 10 mm low-profile quad flat package with exposed thermal pad; RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD for digital core/I/O (3–5.5 V), VSS reference; supports wide-input automotive battery voltage variation. |
| PX0–PX7 (X = A–F) | General-purpose I/O | Up to 68 user I/Os; 11 pins support high-sink capability (20 mA) for direct LED/relay drive without external buffers. |
| PD0/PD1 | CAN transceiver interface | Dedicated differential CANH/CANL pins with integrated bus protection; enable direct connection to ISO 11898-2 physical layer. |
| PA0–PA3 | ADC input channels | Four of 16 multiplexed analog inputs; support simultaneous sampling for multi-sensor engine monitoring (e.g., throttle, temp, pressure). |
| PC3/PC4 | LINUART interface | Shared UART TX/RX with automatic LIN resynchronization; supports master/slave mode per LIN 2.2 specification. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; compatible with external watchdog ICs and power-on reset circuits. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 0 qualification | Validated for continuous operation at 150 °C junction temperature; eliminates derating in high-ambient under-hood environments. |
| Integrated CAN + LIN | Single-chip dual-network support enables cost-effective gateway functionality between high-speed CAN backbone and low-cost LIN subnets. |
| User-trimmable 16 MHz RC oscillator | ±1% accuracy after trimming; removes need for external crystal in cost-sensitive body control modules while maintaining UART/LIN timing compliance. |
| True data EEPROM | 2 Kbyte nonvolatile memory with 300 kcycle write endurance; sustains frequent recalibration updates over 15+ year vehicle lifetime. |
| Advanced control timer | 16-bit timer with 3 complementary outputs and programmable dead-time; enables precise 3-phase motor control in HVAC blower or EPS systems. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time management of fuel injection timing, spark advance, and knock detection using analog sensor inputs and PWM-driven actuators. IC Role / Device Role / Timing Role: Primary MCU executing closed-loop control algorithms with sub-microsecond interrupt latency and deterministic timer-triggered ADC sampling. Use Value: 10-bit ADC with 16-channel mux and 2 LSB TUE ensures accurate air-fuel ratio calculation; CAN 2.0B enables seamless integration with transmission and ABS ECUs. |
Use Scenario: Centralized control of door locks, window lifts, lighting, and mirror adjustment via LIN slave nodes and local I/O drivers. IC Role / Device Role / Timing Role: Gateway MCU managing LIN 2.2 master communication while locally driving high-sink I/Os for relays and LEDs. Use Value: Integrated LINUART with automatic resynchronization tolerates bus voltage fluctuations; 11 high-sink I/Os eliminate external driver ICs, reducing BOM count. |
| Transmission Control Unit (TCU) | Heating/Ventilation/AC (HVAC) |
Use Scenario: Monitoring gear position sensors, turbine speed, and solenoid valve status while coordinating shift logic with engine torque requests over CAN. IC Role / Device Role / Timing Role: Safety-aware controller with independent watchdog and clock security system ensuring fail-safe solenoid deactivation on fault detection. Use Value: AEC-Q100 Grade 0 rating guarantees reliability at 150 °C near transmission housing; dual watchdog timers meet ISO 26262 ASIL-B diagnostic coverage requirements. |
Use Scenario: Closed-loop control of blower motor speed, blend door actuation, and cabin temperature feedback using PWM outputs and thermistor readings. IC Role / Device Role / Timing Role: Motor control MCU leveraging advanced timer with dead-time insertion and complementary outputs for 3-phase inverter drive. Use Value: Advanced control timer supports space-vector modulation for efficient brushless DC motor operation; 10-bit ADC resolves <1°C temperature differentials. |
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 |
|---|---|---|---|
| STM8AF6269TAY | 64 Kbyte Flash, no CAN interface, same LQFP64 package and peripheral set otherwise. | Lacks CAN PHY; suitable only for LIN-only or SPI/I2C-based subsystems without vehicle network connectivity. | Select when CAN is unnecessary and cost reduction via smaller Flash is prioritized. |
| STM32F042F6P6 | 32-bit ARM Cortex-M0 core, 32 Kbyte Flash, USB 2.0, no LIN/CAN; operates up to 85 °C (Industrial grade). | Higher performance but lacks AEC-Q100 qualification and automotive temperature range; requires external CAN transceiver. | Choose only for non-automotive industrial control where USB host capability outweighs automotive qualification needs. |
Compared with STM8AF6269TAY, the STM8AF6288TAX adds 64 Kbyte Flash and CAN-critical for ECU firmware complexity and networked diagnostics. Versus STM32F042F6P6, it delivers guaranteed 150 °C operation and native LIN/CAN, eliminating external components and validation overhead in automotive deployments.
Availability
STM8AF6288TAX is available at Aetrix Electronics and suitable for engine control units, body control modules, and transmission control units requiring stable component supply across extended automotive product lifecycles.
Supply support for STM8AF6288TAX 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-grade silicon.
The STM8A automotive microcontroller product line targets cost-sensitive, high-reliability applications in powertrain, chassis, and body electronics, emphasizing AEC-Q100 qualification, extended temperature operation, and integrated communication peripherals.
FAQ
What is the maximum operating junction temperature for STM8AF6288TAX?
The STM8AF6288TAX is qualified per AEC-Q100 Grade 0 with a maximum operating ambient temperature of +150 °C. Its thermal design supports sustained junction temperatures up to 165 °C under specified power dissipation and PCB copper area conditions, validated through accelerated life testing per JEDEC JESD22-A108.
Does STM8AF6288TAX support in-circuit debugging via SWIM interface?
Yes, the STM8AF6288TAX features a Single Wire Interface Module (SWIM) supporting full-speed in-circuit debugging and programming using ST-LINK/V2 or compatible debug probes. SWIM operates at up to 2 MHz and requires only one dedicated pin (SWIM) plus VDD/VSS, enabling minimal footprint debug access during development and field reprogramming.
How is Flash memory protected against unauthorized read-out?
STM8AF6288TAX implements Read-Out Protection (ROP) via option bytes that disable external read access to Flash contents when enabled. ROP Level 1 prevents read-out via SWIM and bootloader, while preserving debug functionality; ROP Level 2 disables all external access including debug, requiring chip erase to reset protection-meeting automotive cybersecurity requirements for firmware IP protection.
Can the internal 16 MHz RC oscillator meet LIN baud rate accuracy requirements?
Yes-the 16 MHz internal RC oscillator is user-trimmable to ±1% accuracy across temperature and voltage, satisfying LIN 2.2 master-mode timing tolerance (±1.5% for 19.2 kbit/s). Trim values are stored in option bytes and applied automatically at reset, eliminating need for external crystal while maintaining protocol compliance in body electronics applications.
STM8AF6288TAX 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:
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM8AF6288TAX FAQ
1.How can I place an order for STM8AF6288TAX through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8AF6288TAX 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 STM8AF6288TAX reliable?
The price and inventory of STM8AF6288TAX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8AF6288TAX is usually 5 days.
3.What payment methods are accepted for STM8AF6288TAX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8AF6288TAX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8AF6288TAX?
STM8AF6288TAX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8AF6288TAX 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 STM8AF6288TAX?
For technical support, including STM8AF6288TAX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8AF6288TAX requirements.
6.How does Aetrix verify that STM8AF6288TAX is sourced from the original manufacturer or authorized distributors?
All STM8AF6288TAX 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 STM8AF6288TAX meets industry standards.
7.What is the process for return or replacement of STM8AF6288TAX?
All STM8AF6288TAX units undergo pre-shipment inspection (PSI). If there is an issue with STM8AF6288TAX, 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 STM8AF6288TAX part is unused and in its original packaging.
Return procedure for STM8AF6288TAX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM8AF6288TAX Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
