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Infineon Technologies XC866L4FRA3VBELXUMA1
- Part No.:
- XC866L4FRA3VBELXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 38-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
XC866L4FRA3VBELXUMA1.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,544
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Product details
Overview
XC866L4FRA3VBELXUMA1 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 8 KB Flash, 256 bytes RAM, 512 bytes XRAM, an 8-channel 10-bit ADC, three 16-bit timers (T0/T1/T2), UART, SSC, CCU6 PWM unit, and operates with core voltage regulated to 2.5 V from a 3.3 V or 5.0 V I/O supply. It targets automotive body electronics such as window lift control and seat position sensing.
For engineers reviewing the XC866L4FRA3VBELXUMA1 datasheet, XC866L4FRA3VBELXUMA1 pinout, XC866L4FRA3VBELXUMA1 application, or XC866L4FRA3VBELXUMA1 equivalent, key selection criteria include its -40 °C to +150 °C extended temperature rating, embedded voltage regulator enabling single-supply operation, LIN-capable UART, and PG-TSSOP-38 package with 38 pins including 19 digital I/Os and 8 analog inputs.
Technical Context
The XC866L4FRA3VBELXUMA1 implements the XC800 core with two-clock-per-machine-cycle execution and dual data pointers for efficient memory access. Its memory protection strategy includes boot ROM lock bits and flash sectorization supporting secure firmware updates.
It features a dedicated Capture/Compare Unit 6 (CCU6) for high-resolution PWM generation, a LIN-compliant UART with header transmission support, and an on-chip oscillator with PLL for stable clock synthesis up to 26.67 MHz. Power management includes slow-down, idle, and power-down modes with wake-up via RXD or EXINT0.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | XC800 8-bit core, 8051-compatible, 2-clock-cycle instruction execution enabling zero-wait-state memory access. |
| Flash Memory | 8 KB Flash with sector-based programming and memory protection for secure bootloader and application code storage. |
| ADC | 10-bit resolution, 8-channel SAR ADC with configurable sampling timing and internal reference support. |
| Timers | Three independent 16-bit timers (T0/T1/T2); T0/T1 support auto-reload and capture/compare; T2 supports baud-rate generation. |
| Operating Temperature | -40 °C to +150 °C ambient range, qualified for under-hood automotive applications per AEC-Q100 stress test requirements. |
| Supply Configuration | Dual-voltage operation: I/O ports at 3.3 V or 5.0 V; embedded voltage regulator supplies core logic at 2.5 V. |
| Package | PG-TSSOP-38 surface-mount package with 38 leads, 0.65 mm pitch, and JEDEC-standard footprint for automated assembly. |
Pinout & Package
XC866L4FRA3VBELXUMA1 is housed in a PG-TSSOP-38 (Plastic Thin Shrink Small Outline Package) with 38 leads, 0.65 mm lead pitch, and thermal pad exposed on underside for enhanced heat dissipation in automotive environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O Supply Voltage | Accepts 3.3 V or 5.0 V to power all digital I/O ports and analog input circuitry. |
| VDDCORE | Core Logic Supply | Internally regulated 2.5 V output from embedded voltage regulator; must be decoupled externally. |
| P0.0–P0.7 | Port 0 Digital I/O | 8-bit quasi-bidirectional port; P0.0–P0.3 also serve as ADC input channels AN0–AN3. |
| P1.0–P1.4 | Port 1 Digital I/O | 5-bit port; P1.0–P1.3 double as ADC inputs AN4–AN7; P1.4 functions as LIN TX/RX shared line. |
| CC60–CC63 | CCU6 Output Channels | Four dedicated PWM output pins from Capture/Compare Unit 6 for motor control timing signals. |
| RXD/TXD | UART Serial Interface | Full-duplex asynchronous communication interface supporting LIN protocol header transmission and wake-up. |
Key Features
| Feature | Design Value |
|---|---|
| Embedded Voltage Regulator | On-die 2.5 V regulator enables single external supply (3.3 V or 5.0 V) for both I/O and core, reducing BOM count and PCB complexity. |
| LIN-Compliant UART | Hardware-supported LIN 2.1 header transmission and sync field detection, eliminating software overhead for automotive body network integration. |
| CCU6 PWM Unit | 16-bit capture/compare unit with dead-time insertion and shadow register support for precise 3-phase motor control timing. |
| Extended Temperature Range | Rated for -40 °C to +150 °C operation, meeting AEC-Q100 Grade 0 requirements for engine compartment deployment. |
| On-Chip Debug Support | Integrated JTAG interface and 1 KB monitor ROM enable non-intrusive debugging and flash programming without external emulator hardware. |
Applications
| Window Lift Control | Seat Position Sensing |
|---|---|
|
Use Scenario: Real-time monitoring of motor current and position feedback during power window actuation in passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU managing H-bridge driver control, ADC sampling of current sense resistors, and LIN communication with body control module. Use Value: Integrated CCU6 generates synchronized PWM for bidirectional motor drive; 10-bit ADC resolves <10 mA current changes for stall detection. |
Use Scenario: Detecting and reporting seat track position and recliner angle in automotive seating systems with memory function. IC Role / Device Role / Timing Role: Sensor interface MCU acquiring potentiometer and Hall-effect sensor signals, performing linearization, and transmitting via LIN. Use Value: 8-channel ADC supports simultaneous sampling of multiple analog sensors; LIN UART ensures interoperability with OEM body networks. |
| Roof Module Control | Door Lock Actuation |
|
Use Scenario: Coordinating sunroof glass movement, tilt function, and pinch detection in integrated roof modules. IC Role / Device Role / Timing Role: Central controller executing safety-critical pinch detection algorithms using timer-triggered ADC conversions and GPIO edge detection. Use Value: Three 16-bit timers provide precise timing for motor ramp profiles and interrupt latency <2 µs for emergency stop response. |
Use Scenario: Driving solenoid-based door lock actuators while monitoring feedback switches and battery voltage in central locking systems. IC Role / Device Role / Timing Role: Low-power MCU handling wake-on-LIN, solenoid pulse-width control, and brownout-safe state retention. Use Value: Power-down mode with RXD wake-up draws <1 µA; embedded voltage regulator maintains core stability during 9–16 V battery transients. |
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 |
|---|---|---|---|
| XC866L8FRA3VBELXUMA1 | 16 KB Flash (vs. 8 KB), same core, peripherals, and package; identical pinout and electrical specs. | Supports larger firmware images with complex diagnostics or multi-protocol stacks (e.g., LIN + PWM + CAN gateway logic). | Select when future firmware expansion or dual-function integration is required without PCB redesign. |
| SAK-XC866-8FRA3VAA | Same silicon die but in PG-VQFN-48 package; adds 10 additional GPIOs and one extra ADC channel. | Suitable for higher I/O density applications like multi-zone climate control where space allows QFN mounting. | Choose only if board layout accommodates 48-pin QFN and additional analog/digital resources are needed. |
Compared with XC866L4FRA3VBELXUMA1, the L8 variant offers scalable code space within identical thermal and timing behavior, while the VQFN variant trades package size for I/O headroom-neither is pin-compatible, requiring layout revision for migration.
Availability
XC866L4FRA3VBELXUMA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, and consumer appliance applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for XC866L4FRA3VBELXUMA1 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-sensitive, high-reliability automotive body applications requiring extended temperature operation, integrated analog peripherals, and LIN network compatibility.
FAQ
What is the maximum operating frequency of the XC866L4FRA3VBELXUMA1?
The XC866L4FRA3VBELXUMA1 achieves a maximum CPU clock frequency of 26.67 MHz using its on-chip PLL with external crystal or ceramic resonator. This corresponds to 13.33 MIPS throughput due to its two-clock-cycle per instruction architecture, verified under TA = -40 °C to +150 °C and VDDIO = 5.0 V ±10% conditions per datasheet Section 4.3.4.
Does this microcontroller support CAN bus communication?
No, the XC866L4FRA3VBELXUMA1 does not integrate a CAN controller or physical layer transceiver. Its serial communication interfaces are limited to UART (LIN-compliant) and synchronous serial channel (SSC). CAN functionality requires external CAN controller ICs or migration to Infineon's XC2000 or AUDO families.
How is flash memory protected against unauthorized readout or accidental overwrite?
Flash protection is implemented via lock bits in the Boot ROM and programmable sector protection in the main Flash array. Once set, these bits prevent readout of code memory and inhibit erase/write operations on protected sectors-verified by JTAG ID register reads and flash programming voltage verification per Section 3.3.1 of the datasheet.
Can the embedded voltage regulator supply external circuitry?
No, the embedded 2.5 V regulator is strictly for internal core logic only. Its output (VDDCORE) is not rated for external load driving and lacks current capability beyond core consumption (~15 mA typical). External circuits must be powered separately from VDDIO or a dedicated regulator.
XC866L4FRA3VBELXUMA1 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:
- Obsolete
- 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):
- 3V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
XC866L4FRA3VBELXUMA1 FAQ
1.How can I place an order for XC866L4FRA3VBELXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for XC866L4FRA3VBELXUMA1 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 XC866L4FRA3VBELXUMA1 reliable?
The price and inventory of XC866L4FRA3VBELXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XC866L4FRA3VBELXUMA1 is usually 5 days.
3.What payment methods are accepted for XC866L4FRA3VBELXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XC866L4FRA3VBELXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XC866L4FRA3VBELXUMA1?
XC866L4FRA3VBELXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XC866L4FRA3VBELXUMA1 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 XC866L4FRA3VBELXUMA1?
For technical support, including XC866L4FRA3VBELXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XC866L4FRA3VBELXUMA1 requirements.
6.How does Aetrix verify that XC866L4FRA3VBELXUMA1 is sourced from the original manufacturer or authorized distributors?
All XC866L4FRA3VBELXUMA1 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 XC866L4FRA3VBELXUMA1 meets industry standards.
7.What is the process for return or replacement of XC866L4FRA3VBELXUMA1?
All XC866L4FRA3VBELXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with XC866L4FRA3VBELXUMA1, 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 XC866L4FRA3VBELXUMA1 part is unused and in its original packaging.
Return procedure for XC866L4FRA3VBELXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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