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Infineon Technologies XC866L4FRA5VBELXUMA1
- Part No.:
- XC866L4FRA5VBELXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 38-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
XC866L4FRA5VBELXUMA1.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,073
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Product details
Overview
XC866L4FRA5VBELXUMA1 from Infineon Technologies is an 8-bit single-chip microcontroller based on the XC800 core, compatible with the standard 8051 architecture and executing instructions in two clock cycles. It integrates 4 KB Flash, 256 B RAM, 512 B XRAM, 8 KB Boot ROM, a 10-bit 8-channel ADC, three 16-bit timers (T0/T1/T2), UART, SSC, CCU6 PWM unit, and operates with core voltage regulated to 2.5 V from 3.3 V/5.0 V I/O supply. It targets automotive body electronics and industrial motor control.
For engineers reviewing the XC866L4FRA5VBELXUMA1 datasheet, XC866L4FRA5VBELXUMA1 pinout, XC866L4FRA5VBELXUMA1 application, or XC866L4FRA5VBELXUMA1 equivalent, key selection criteria include its PG-TSSOP-38 package, -40 °C to +150 °C extended temperature rating, integrated voltage regulator, LIN-capable UART, and flash memory protection features for safety-critical firmware.
Technical Context
The XC866L4FRA5VBELXUMA1 implements the XC800 core with dual data pointers and two-clock-per-machine-cycle execution, enabling zero-wait-state memory access. Its memory subsystem includes 4 KB user-programmable Flash with sector-based protection, 8 KB mask-ROM Boot ROM containing monitor code, and separate 256 B RAM + 512 B XRAM spaces.
Peripherals are tightly coupled to deterministic timing: the 10-bit ADC supports configurable conversion sequences with hardware trigger from CCU6 or timers; the CCU6 provides six capture/compare channels for high-resolution PWM generation; and the UART includes LIN 2.1 header transmission support with automatic sync-break detection and checksum handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | XC800 (8051-compatible), 2-clock cycle per instruction, enabling deterministic real-time execution without wait states |
| Flash Memory | 4 KB with sectorized erase and write protection-supports secure bootloader and firmware update partitioning |
| ADC Resolution | 10-bit SAR ADC with 8 input channels-provides sufficient dynamic range for motor current sensing and temperature monitoring |
| Operating Temperature | -40 °C to +150 °C-qualified for under-hood automotive applications and high-ambient industrial environments |
| Supply Architecture | Dual-supply: I/O at 3.3 V or 5.0 V, core logic internally regulated to 2.5 V-enables mixed-voltage system interfacing with low-power core operation |
| Package Type | PG-TSSOP-38 (38-pin thin shrink small outline package)-offers compact footprint and thermal performance suitable for space-constrained PCBs |
| Debug Interface | JTAG with on-chip 1 KB monitor ROM and 64 B monitor RAM-enables non-intrusive debugging and flash programming without external emulator |
Pinout & Package
XC866L4FRA5VBELXUMA1 is housed in a PG-TSSOP-38 package (38-pin, 0.65 mm pitch, exposed thermal pad). Pin functions are defined per Infineon's SAL-XC866 Data Sheet V1.1 (2012-12), Sections 2.3–2.4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDP | I/O Power Supply | 3.3 V or 5.0 V supply for Port 0, Port 1, Port 2, and Port 3 digital I/O buffers |
| VDD | Core Power Supply | Input to embedded voltage regulator; generates internal 2.5 V core logic supply |
| P0.0–P0.7 | Port 0 Bidirectional I/O | 8-bit quasi-bidirectional port with alternate functions including UART RXD/TXD and timer inputs |
| P1.0–P1.7 | Port 1 Bidirectional I/O | 8-bit port supporting analog inputs (AN0–AN7), CCU6 inputs, and external interrupt sources (EXINT0) |
| P2.0–P2.2 | Port 2 Digital I/O | 3-bit port with SSC clock/data lines and reset input (RST) |
| P3.0–P3.2 | Port 3 Digital I/O | 3-bit port supporting UART TXD/RXD, LIN wake-up, and watchdog output (WDO) |
Key Features
| Feature | Design Value |
|---|---|
| Embedded Voltage Regulator | On-die 2.5 V regulator accepts 3.3 V/5.0 V input-eliminates need for external core LDO and simplifies power tree design |
| LIN 2.1 UART Mode | Hardware-assisted LIN header generation with auto-sync-break, ID field, and checksum-reduces CPU load in automotive body networks |
| CCU6 PWM Unit | 16-bit capture/compare unit with 6 channels and dead-time insertion-enables precise 3-phase motor gate drive control |
| Memory Protection | Flash sector lock bits and boot ROM write-protection-prevents accidental overwriting of bootloader during field firmware updates |
| Extended Temp Range | Qualified from -40 °C to +150 °C-meets AEC-Q100 Grade 0 requirements for engine control and transmission modules |
Applications
| Automotive Body Control Module | Industrial Brushless DC Motor Driver |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirrors, and lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main MCU managing LIN slave communication, analog sensor acquisition (potentiometers, thermistors), and PWM-driven actuator outputs. Use Value: Integrated LIN UART and CCU6 reduce external component count; 150 °C rating enables placement near power stages without heatsinking. | Use Scenario: Closed-loop commutation and speed regulation of BLDC motors in HVAC blowers and pumps. IC Role / Device Role / Timing Role: Real-time motor controller executing FOC or trapezoidal commutation using ADC current feedback and CCU6-generated 3-phase PWM. Use Value: Deterministic 2-clock-cycle core and hardware-triggered ADC conversions ensure sub-10 µs current sampling latency for stable torque control. |
| Smart Power Outlet with Energy Monitoring | Industrial Temperature Controller |
Use Scenario: Mains-powered outlet with current/voltage sensing, relay control, and local display interface. IC Role / Device Role / Timing Role: System-on-chip handling isolation-coupled analog front-end, zero-crossing detection, and SSR/relay timing via Timer 2. Use Value: Dual-supply architecture allows direct 5 V interface to optocouplers and displays while maintaining low-power 2.5 V core operation. | Use Scenario: DIN-rail mounted controller regulating heating elements in process ovens or chemical reactors. IC Role / Device Role / Timing Role: Primary controller acquiring RTD/thermocouple signals via ADC, computing PID output, and driving SSRs or TRIACs via PWM-modulated gate signals. Use Value: On-chip voltage regulator and extended temperature range enable reliable operation in uncooled enclosures up to 70 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XC866L8FRA5VBELXUMA1 | 8 KB Flash (vs. 4 KB), same package and peripherals-no change in RAM, ADC, or timer resources | Suitable where larger firmware image size is required for enhanced diagnostics or multi-protocol support | Select when future firmware growth headroom or dual-application partitioning (e.g., bootloader + app) is needed |
| SAK-TC1766-128F133HR BA | TriCore 32-bit architecture, 133 MHz, 128 KB Flash-significantly higher performance and integration (CAN, Ethernet, FPU) | Targeted at advanced powertrain or ADAS domains requiring real-time OS, safety ASIL-B compliance, and complex signal processing | Choose only when migrating beyond 8-bit constraints-requires full toolchain and software re-architecture |
Compared with XC866L8FRA5VBELXUMA1, this part trades Flash capacity for cost-sensitive designs with fixed firmware size; versus TC1766, it offers lower BOM cost and simpler certification path for non-safety-critical body applications, but lacks CAN and functional safety features.
Availability
XC866L4FRA5VBELXUMA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, smart power outlets, and temperature controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for XC866L4FRA5VBELXUMA1 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
Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.
This device belongs to the XC800 family-designed specifically for cost-optimized, high-reliability 8-bit control in automotive body and industrial motor applications, emphasizing integrated analog peripherals, extended temperature operation, and functional safety readiness.
FAQ
Is XC866L4FRA5VBELXUMA1 qualified for automotive applications?
Yes. It is qualified per AEC-Q100 Grade 0 (−40 °C to +150 °C), features brown-out reset, PLL loss-of-lock detection, and memory protection-meeting requirements for under-hood and body control modules. Infineon provides full qualification reports upon request for certified customers.
Does this microcontroller support in-system programming (ISP)?
Yes. The 4 KB Flash supports in-system programming via UART using the on-chip bootloader in the 8 KB Boot ROM. No external programmer is required-only a UART interface and host-side flashing utility compliant with Infineon's XC800 ISP protocol.
What debug interfaces are available on XC866L4FRA5VBELXUMA1?
It supports JTAG-based on-chip debugging per IEEE 1149.1, with dedicated TCK/TMS/TDI/TDO pins and a JTAG ID register. Debug functionality includes breakpoint setting, register inspection, and flash programming-all accessible through Infineon's DAS-USB or compatible third-party tools.
Can the ADC operate synchronously with PWM events?
Yes. The 10-bit ADC can be triggered by hardware events from CCU6 or Timer 2, enabling precise current sampling aligned to PWM center or edge points-critical for motor phase current reconstruction in BLDC and PMSM drives.
XC866L4FRA5VBELXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 38-TFSOP (0.173", 4.40mm Width)
- Series:
- XC8xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Core Processor:
- XC800
- Core Size:
- 8-Bit
- Speed:
- 25MHz
- Connectivity:
- LINbus, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 27
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 768 x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
XC866L4FRA5VBELXUMA1 FAQ
1.How can I place an order for XC866L4FRA5VBELXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for XC866L4FRA5VBELXUMA1 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 XC866L4FRA5VBELXUMA1 reliable?
The price and inventory of XC866L4FRA5VBELXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XC866L4FRA5VBELXUMA1 is usually 5 days.
3.What payment methods are accepted for XC866L4FRA5VBELXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XC866L4FRA5VBELXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XC866L4FRA5VBELXUMA1?
XC866L4FRA5VBELXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XC866L4FRA5VBELXUMA1 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 XC866L4FRA5VBELXUMA1?
For technical support, including XC866L4FRA5VBELXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XC866L4FRA5VBELXUMA1 requirements.
6.How does Aetrix verify that XC866L4FRA5VBELXUMA1 is sourced from the original manufacturer or authorized distributors?
All XC866L4FRA5VBELXUMA1 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 XC866L4FRA5VBELXUMA1 meets industry standards.
7.What is the process for return or replacement of XC866L4FRA5VBELXUMA1?
All XC866L4FRA5VBELXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with XC866L4FRA5VBELXUMA1, 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 XC866L4FRA5VBELXUMA1 part is unused and in its original packaging.
Return procedure for XC866L4FRA5VBELXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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