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STMicroelectronics STM8AF6213PCX
- Part No.:
- STM8AF6213PCX
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
STM8AF6213PCX.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,153
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Product details
Overview
STM8AF6213PCX from STMicroelectronics is an AEC-Q100 qualified automotive-grade 8-bit microcontroller featuring a 16 MHz STM8A core, 4 Kbyte Flash memory, 640 byte data EEPROM, 10-bit ADC with 7 muxed channels, LIN 2.2-compliant UART, and operation up to 150 °C - deployed in engine control modules and body electronics for robust real-time signal acquisition and LIN bus communication.
For engineers reviewing the STM8AF6213PCX datasheet, STM8AF6213PCX pinout, STM8AF6213PCX application, or STM8AF6213PCX equivalent, key selection criteria include automotive temperature range (−40 to 150 °C), LIN 2.2 master/slave support with automatic resynchronization, high-sink I/O capability (21 pins), and dual RC oscillator trimming for clock accuracy in harsh environments.
Technical Context
The STM8AF6213PCX implements a Harvard-architecture STM8A core with 3-stage pipeline and extended instruction set, enabling deterministic execution at up to 16 MHz across its full operating voltage (3–5.5 V) and temperature (−40 to 150 °C) range. Its clock system integrates user-trimmable 16 MHz HSI and 128 kHz LSI oscillators plus external crystal support, all monitored by a dedicated clock security system.
Peripheral integration includes a LINUART compliant with LIN 2.2 specification (including auto-resync and checksum handling), SPI up to 8 Mbit/s, I²C at 400 Kbit/s, and a 10-bit ADC with analog watchdog and internal reference measurement - all accessible via up to 28 I/Os on the LQFP32 package, including 21 high-sink outputs rated for 20 mA sink current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | STM8A 8-bit Harvard core with 3-stage pipeline; enables deterministic timing-critical control loops in automotive subsystems. |
| Max CPU Frequency | 16 MHz at 3–5.5 V supply; supports real-time response for engine management and LIN node timing budgets. |
| Flash Memory | 4 Kbyte program Flash with 20-year data retention at 55 °C after 1 kcycle; suitable for field-updatable firmware in safety-critical ECUs. |
| Data EEPROM | 640 byte true data EEPROM with 300 kcycle endurance; stores calibration data, fault logs, and configuration without external NV memory. |
| ADC Resolution | 10-bit SAR ADC with ±1 LSB INL/DNL, 7 muxed input channels + 1 internal channel; supports precise sensor monitoring (e.g., coolant temp, throttle position). |
| LIN Interface | LINUART compliant with LIN 2.2 spec, supporting master/slave modes and automatic resynchronization; eliminates need for external LIN transceiver in basic nodes. |
| Operating Temperature | −40 to +150 °C ambient; qualified per AEC-Q100 Grade 0, enabling placement in under-hood applications like ignition control and fuel injection. |
Pinout & Package
LQFP32 (7 × 7 mm, 0.8 mm pitch) package with 32-pin quad flat layout optimized for automotive PCB thermal dissipation and reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD powers core/peripherals; VSS provides low-noise return path for analog/digital sections. |
| PA0–PA7 | Programmable I/O port A | 8-bit bidirectional port with high-sink capability (20 mA); configurable as LIN TX/RX, ADC inputs, or timer outputs. |
| PB0–PB7 | Programmable I/O port B | 8-bit port supporting SPI SCK/MOSI/MISO and I²C SCL/SDA; includes internal pull-ups for open-drain bus operation. |
| PC0–PC7 | Programmable I/O port C | 8-bit port with TIM1 complementary outputs and dead-time insertion; used for motor gate drive or PWM-controlled actuators. |
| PD0–PD7 | Programmable I/O port D | 8-bit port supporting LINUART RX/TX, reset (NRST), and external interrupt inputs; NRST pin has Schmitt trigger for noise immunity. |
| OSC_IN/OSC_OUT | Crystal oscillator interface | Supports 1–16 MHz external crystal or ceramic resonator; enables precise timing for LIN baud rate generation (±1.5% tolerance). |
| SWIM | Single-wire interface module | Debug and programming interface using single pin; allows in-system programming and real-time debugging without JTAG overhead. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 0 qualification | Validated for −40 to +150 °C operation with lifetime reliability testing; meets automotive functional safety baseline requirements. |
| High-sink I/O capability | 21 pins rated for 20 mA sink current; directly drives LEDs, relays, and small solenoids without external drivers in body control units. |
| Integrated LIN 2.2 UART | Hardware-accelerated LIN frame generation, checksum calculation, and automatic resynchronization; reduces CPU load and improves protocol compliance. |
| User-trimmable 16 MHz RC oscillator | ±2% accuracy after trimming; eliminates external crystal for cost-sensitive LIN slave nodes while maintaining baud rate stability. |
| Advanced control timer (TIM1) | 16-bit timer with 4 CAPCOM channels, 3 complementary outputs, and programmable dead-time insertion; enables 3-phase motor control or digital power supply regulation. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time monitoring of crankshaft position, throttle angle, and coolant temperature in gasoline direct injection systems. IC Role / Device Role / Timing Role: Primary MCU executing closed-loop fuel injection timing and spark advance algorithms with sub-millisecond latency. Use Value: 10-bit ADC with internal reference and scan mode enables simultaneous multi-sensor sampling; LIN interface communicates status to dashboard cluster over shared bus. | Use Scenario: Centralized control of door locks, window lifts, interior lighting, and mirror adjustment in premium vehicles. IC Role / Device Role / Timing Role: LIN slave node coordinating actuator commands received from master BCM via LIN 2.2 frames. Use Value: High-sink I/Os directly drive window motor H-bridges and LED indicators; 150 °C rating permits placement near HVAC ducts or fuse boxes. |
| Transmission Control Module | Seat Occupancy Detection System |
Use Scenario: Gear selection logic, solenoid valve timing, and torque converter clutch control in 6-speed automatic transmissions. IC Role / Device Role / Timing Role: Safety-relevant controller managing PWM-driven shift solenoids and pressure sensors with fail-safe diagnostics. Use Value: Independent watchdog and clock security system detect runtime faults; data EEPROM stores gear wear metrics and diagnostic trouble codes (DTCs). | Use Scenario: Capacitive sensing of occupant presence and weight distribution for airbag deployment logic in front passenger seat. IC Role / Device Role / Timing Role: Signal conditioner and communication node converting analog capacitance measurements into LIN messages for airbag ECU. Use Value: 10-bit ADC with analog watchdog monitors sensor drift; LIN interface reports occupancy state without adding CAN bus load. |
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 |
|---|---|---|---|
| STM8AF6223PCX | 8 Kbyte Flash, same peripherals and package; higher memory density for larger firmware images. | Suitable where bootloader, diagnostics, or OTA update capability requires >4 Kbyte code space. | Select when future firmware expansion or dual-bank updates are required; pin- and software-compatible. |
| RL78/F13-GB | Renesas RL78 core, 16 MHz max, 16 Kbyte Flash, 1.25 Kbyte RAM; different instruction set and peripheral register map. | Requires full toolchain migration and HAL layer rewrite; offers lower active current but no native LIN 2.2 hardware. | Consider only for new designs targeting Renesas ecosystem; not drop-in replaceable due to architectural divergence. |
Compared with STM8AF6223PCX, the STM8AF6213PCX trades Flash capacity for cost-sensitive LIN slave roles; versus RL78/F13-GB, it delivers native LIN 2.2 compliance and AEC-Q100 Grade 0 qualification without software abstraction layers.
Availability
STM8AF6213PCX is available at Aetrix Electronics and suitable for engine control units, body control modules, and transmission control systems requiring stable component supply across extended automotive lifecycles.
Supply support for STM8AF6213PCX 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 ICs, sensors, and automotive-grade components since 1987.
The STM8AF series targets automotive body, chassis, and powertrain applications with AEC-Q100 qualification, extended temperature operation, and integrated LIN/ADC/timer peripherals to reduce system BOM and improve ECU reliability.
FAQ
What is the maximum operating temperature rating for STM8AF6213PCX?
The STM8AF6213PCX is rated for operation from −40 °C to +150 °C ambient temperature and is qualified per AEC-Q100 Grade 0. This rating is validated through accelerated life testing and thermal cycling, making it suitable for under-hood placement in engine control and transmission modules where ambient temperatures exceed 125 °C.
Does STM8AF6213PCX include hardware support for LIN 2.2 communication?
Yes, the STM8AF6213PCX integrates a dedicated LINUART peripheral compliant with LIN 2.2 specification, supporting both master and slave modes with automatic resynchronization, frame checksum calculation, and error detection. It operates without external transceiver for slave nodes and interfaces directly with standard LIN physical layer transceivers in master configurations.
How many I/O pins support high-sink capability, and what is the rated current?
Twenty-one I/O pins on the STM8AF6213PCX are specified as high-sink outputs, each capable of sinking up to 20 mA continuously. These pins are distributed across ports PA, PB, PC, and PD and are electrically hardened against current injection, enabling direct drive of LEDs, relays, and small solenoids in automotive body electronics without external driver ICs.
Is the internal 16 MHz RC oscillator factory-calibrated, and can it be trimmed?
The internal 16 MHz RC oscillator is factory-trimmed to ±1% initial accuracy and supports user trimming via option bytes to achieve ±2% accuracy over temperature and voltage. Trim values are stored in dedicated memory locations and applied at reset, allowing fine-tuning for LIN baud rate accuracy (e.g., 19.2 kbps with ±1.5% tolerance) without external crystal.
STM8AF6213PCX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- STM8A
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- STM8A
- Core Size:
- 8-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 16
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 640 x 8
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 5x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM8AF6213PCX FAQ
1.How can I place an order for STM8AF6213PCX through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8AF6213PCX 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 STM8AF6213PCX reliable?
The price and inventory of STM8AF6213PCX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8AF6213PCX is usually 5 days.
3.What payment methods are accepted for STM8AF6213PCX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8AF6213PCX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8AF6213PCX?
STM8AF6213PCX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8AF6213PCX 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 STM8AF6213PCX?
For technical support, including STM8AF6213PCX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8AF6213PCX requirements.
6.How does Aetrix verify that STM8AF6213PCX is sourced from the original manufacturer or authorized distributors?
All STM8AF6213PCX 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 STM8AF6213PCX meets industry standards.
7.What is the process for return or replacement of STM8AF6213PCX?
All STM8AF6213PCX units undergo pre-shipment inspection (PSI). If there is an issue with STM8AF6213PCX, 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 STM8AF6213PCX part is unused and in its original packaging.
Return procedure for STM8AF6213PCX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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