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Infineon Technologies SAK-XC866-2FRI BC
- Part No.:
- SAK-XC866-2FRI BC
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 38-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
SAK-XC866-2FRI BC.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,016
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Product details
Overview
SAK-XC866-2FRI BC from Infineon Technologies is an 8-bit single-chip microcontroller based on the XC800 core (8051-compatible), featuring 4 KB flash program memory, 256 bytes RAM, and operation across –40 °C to +125 °C. It integrates a 10-bit 8-channel ADC, three 16-bit timers, UART, SSC, CCU6 PWM unit, and on-chip debug support-designed for automotive body control modules requiring robust embedded timing and I/O management.
For engineers reviewing the SAK-XC866-2FRI BC datasheet, SAK-XC866-2FRI BC pinout, SAK-XC866-2FRI BC application, or SAK-XC866-2FRI BC equivalent, key selection considerations include its industrial-grade temperature range, 5 V supply compatibility, flash-based reprogrammability, and integrated LIN-capable peripheral set for cost-sensitive automotive subsystems.
Technical Context
The XC866 implements a two-clock-per-machine-cycle 8051-compatible core with dual data pointers and internal voltage regulation (2.5 V core from 5 V supply). Its memory architecture separates 4 KB P-Flash (code) and 4 KB D-Flash (data), both protected by configurable bit-level write protection.
Peripheral integration includes a 16-bit Capture/Compare Unit (CCU6) for motor control PWM generation, hardware UART with LIN physical layer support, and synchronous serial channel (SSC) for sensor interfacing-all clocked via on-chip oscillator with PLL and loss-of-lock detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | XC800 8-bit (8051-compatible), 2 clocks/machine cycle → zero-wait-state execution at 26.7 MHz max |
| Program Memory | 4 KB Flash (P-Flash) → field-upgradable firmware storage with configurable write protection |
| Data Memory | 256 bytes RAM + 512 bytes XRAM + 4 KB D-Flash → persistent data logging and parameter storage |
| Analog Interface | 10-bit, 8-channel ADC → 1 LSB = 4.88 mV @ 5 V reference, suitable for potentiometer and thermistor sensing |
| Timers & PWM | Three 16-bit timers + CCU6 → independent PWM channels with dead-time insertion for BLDC motor gate drive |
| Communication | UART (LIN-compliant) + SSC → direct connection to LIN transceivers and SPI/I²C sensors without external level shifters |
| Supply & Temp | 5.0 V ±10 % supply, –40 °C to +125 °C operating range → qualified for under-hood automotive environments |
Pinout & Package
SAK-XC866-2FRI BC is housed in a PG-TSSOP-38 package (38-pin thin shrink small-outline package), 9.7 mm × 4.4 mm × 1.2 mm, lead pitch 0.5 mm, RoHS-compliant, with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDP | Digital & I/O power supply | VDD = 5 V core/I/O rail; VDDP = dedicated 5 V port supply enabling mixed-voltage GPIO operation |
| VSS | Digital ground | Common return for digital logic and analog reference; separate from analog ground in layout-critical designs |
| XTAL1/XTAL2 | Crystal oscillator input/output | Supports 1–20 MHz quartz crystals; internal hysteresis enables stable startup at low temperatures |
| P0.0–P0.7 | Port 0 bidirectional I/O | 8-bit port with alternate functions including UART RXD/TXD, SSC pins, and external interrupt inputs |
| P1.0–P1.7 | Port 1 bidirectional I/O | 8-bit port supporting ADC inputs (P1.0–P1.7), CCU6 outputs, and timer capture inputs |
| P2.0–P2.2 | Port 2 partial I/O | 3-bit port with WDT reset input (P2.0), external interrupt (P2.1), and debug monitor enable (P2.2) |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts 5 V-tolerant signal for system-level reset coordination |
Key Features
| Feature | Design Value |
|---|---|
| On-chip voltage regulator | Generates stable 2.5 V core supply from 5 V input → eliminates need for external LDO in space-constrained modules |
| Memory protection scheme | Configurable bit-level write/erase lock for P-Flash and D-Flash → prevents accidental firmware overwrite during field updates |
| Power-down wake-up sources | RXD line activity or EXINT0 pin transition → enables ultra-low-power sleep mode with sub-10 µA current draw and fast (< 5 µs) wake-up |
| Integrated LIN bootloader support | Hardware UART with LIN physical layer timing compliance → enables in-vehicle firmware updates over single-wire LIN bus without external transceiver |
| Monitor ROM/RAM | 1 KB monitor ROM (within 8 KB Boot ROM) + 64 B monitor RAM → enables real-time debugging and flash programming via UART without JTAG |
Applications
| Body Control Module (BCM) | Seat Position Controller |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing CAN/LIN gateway logic, PWM motor drivers, and ADC-based position feedback sampling. Use Value: Integrated CCU6 and 10-bit ADC eliminate discrete motor driver ICs and external ADCs, reducing BOM count by ≥3 components per node. | Use Scenario: Real-time monitoring and actuation of multi-motor seat positioning systems with memory presets. IC Role / Device Role / Timing Role: Sensor fusion hub processing potentiometer and Hall-effect inputs while generating synchronized PWM for up to four DC motors. Use Value: Dual data pointers and 16-bit timers enable concurrent motor control loops with < 100 µs jitter-critical for smooth, coordinated seat movement. |
| Roof Module (Sunroof/Convertibles) | Climate Control Actuator |
Use Scenario: Safety-critical sunroof open/close and pinch-detection logic with emergency stop and auto-reverse. IC Role / Device Role / Timing Role: Dedicated safety MCU running independent watchdog-monitored firmware, sampling current sense and limit switch inputs. Use Value: Brownout reset and hardware watchdog ensure fail-safe shutdown during voltage dips or code runaway-meeting ISO 26262 ASIL-B requirements. | Use Scenario: Driving stepper or DC actuators for HVAC blend doors and air flaps in automotive climate systems. IC Role / Device Role / Timing Role: Precision PWM generator with programmable dead time and ADC-based temperature compensation. Use Value: CCU6's center-aligned PWM mode reduces audible noise in actuators; 10-bit ADC resolution supports ±1 °C thermal compensation accuracy. |
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 |
|---|---|---|---|
| SAK-XC866-4FRI | 8 KB P-Flash + 4 KB D-Flash vs. 4 KB + 4 KB → doubles code capacity for complex state machines | Supports larger diagnostic stacks and dual-bank firmware updates not feasible on -2FRI | Select when >32 KB instruction footprint or A/B firmware swapping is required |
| SAF-XC866-2FRI | Same memory and peripherals but rated for –40 °C to +85 °C → lower thermal margin and qualification grade | Approved for non-under-hood industrial use only; not qualified for automotive engine bay deployment | Select only for cabin-mounted or ambient-temperature industrial controls |
Compared with SAK-XC866-4FRI, the -2FRI trades flash capacity for cost and die size in fixed-function modules; compared with SAF-XC866-2FRI, it delivers higher thermal resilience and automotive qualification-making it optimal for under-hood body electronics where extended temperature operation is mandatory.
Availability
SAK-XC866-2FRI BC is available at Aetrix Electronics and suitable for automotive body control modules, seat position controllers, roof modules, and climate control actuators requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for SAK-XC866-2FRI BC 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 MCUs, and security ICs, with global R&D and manufacturing infrastructure.
The XC866 belongs to Infineon's XC800 family-designed specifically for cost-optimized, high-reliability automotive body electronics requiring integrated analog peripherals, LIN connectivity, and extended temperature operation.
FAQ
Does SAK-XC866-2FRI BC support LIN 2.1 physical layer directly?
Yes. The integrated UART supports LIN 2.1 timing specifications-including sync field tolerance, break detection, and baud rate accuracy-when paired with a standard LIN transceiver. No external timing calibration or software compensation is required for compliant communication.
What is the maximum ADC sampling rate achievable with all 8 channels active?
At 26.7 MHz CPU clock, the 10-bit ADC achieves up to 100 kSPS aggregate throughput using automatic channel sequencing. With 8 channels enabled and 11.5 ADC clock cycles per conversion, full 8-channel scan completes in ≈88 µs, yielding ~11.4 kSPS per channel.
Is the 4 KB D-Flash electrically erasable during normal operation?
Yes. D-Flash supports byte-wise erase and write operations under CPU control at full speed, with no requirement for external high-voltage programming. Erase cycles are rated for 100,000 cycles, and data retention exceeds 20 years at 125 °C.
Can the CCU6 module generate complementary PWM outputs with programmable dead time?
Yes. CCU6 provides two independent 16-bit PWM units (CC60/CC61), each supporting center-aligned mode, fault input blanking, and hardware-configurable dead-time insertion (1–128 CPU clock cycles) without CPU intervention-enabling safe driving of half-bridge motor drivers.
SAK-XC866-2FRI BC 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:
- 86MHz
- Connectivity:
- SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 19
- Program Memory Size:
- 8KB (8K 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SAK-XC866-2FRI BC FAQ
1.How can I place an order for SAK-XC866-2FRI BC through Aetrix?
Please submit a Request for Quotation (RFQ) for SAK-XC866-2FRI BC 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 SAK-XC866-2FRI BC reliable?
The price and inventory of SAK-XC866-2FRI BC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SAK-XC866-2FRI BC is usually 5 days.
3.What payment methods are accepted for SAK-XC866-2FRI BC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SAK-XC866-2FRI BC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SAK-XC866-2FRI BC?
SAK-XC866-2FRI BC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SAK-XC866-2FRI BC 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 SAK-XC866-2FRI BC?
For technical support, including SAK-XC866-2FRI BC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SAK-XC866-2FRI BC requirements.
6.How does Aetrix verify that SAK-XC866-2FRI BC is sourced from the original manufacturer or authorized distributors?
All SAK-XC866-2FRI BC 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 SAK-XC866-2FRI BC meets industry standards.
7.What is the process for return or replacement of SAK-XC866-2FRI BC?
All SAK-XC866-2FRI BC units undergo pre-shipment inspection (PSI). If there is an issue with SAK-XC866-2FRI BC, 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 SAK-XC866-2FRI BC part is unused and in its original packaging.
Return procedure for SAK-XC866-2FRI BC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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