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Infineon Technologies SAF-XC866-2FRI BC
- Part No.:
- SAF-XC866-2FRI BC
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 38-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
SAF-XC866-2FRI BC.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,750
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Product details
Overview
SAF-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 512 bytes XRAM. It integrates a 10-bit 8-channel ADC, three 16-bit timers (T0/T1/T2), CCU6 capture/compare unit for PWM, UART, SSC, and on-chip debug support. It operates across –40 °C to +85 °C and targets motor control and industrial sensor interface applications.
For engineers reviewing the SAF-XC866-2FRI BC datasheet, SAF-XC866-2FRI BC pinout, SAF-XC866-2FRI BC application, or SAF-XC866-2FRI BC equivalent, key selection criteria include its 4-KB Flash size, 3.3 V/5 V I/O supply with 2.5 V core regulation, PG-TSSOP-38 package, LIN-capable BSL absence, and industrial-grade temperature rating.
Technical Context
The XC866 implements a two-clock-per-machine-cycle 8051-compatible core with dual data pointers and on-chip voltage regulation generating 2.5 V core logic supply from 3.3 V or 5.0 V VDD. Its peripheral set includes a programmable 16-bit watchdog timer, power-down wake-up via RXD or EXINT0, and clock gating per peripheral for low-power operation.
Memory architecture separates 8 KB Boot ROM (including 1 KB monitor ROM and 64 B monitor RAM), 4 KB user flash (P-Flash), and 4 KB data flash (D-Flash) with configurable protection. The ADC supports 8 analog inputs with 10-bit resolution and programmable sampling time; CCU6 provides six PWM outputs with dead-time control and emergency shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | XC800 (8051-compatible), 2 clocks/machine cycle - enables zero-wait-state execution from on-chip memory |
| Flash Memory | 4 KB P-Flash + 4 KB D-Flash - supports separate code storage and nonvolatile data logging |
| ADC | 10-bit, 8-channel - delivers ±1 LSB INL/DNL for precision current/voltage sensing in motor drives |
| Timers | Three 16-bit timers (T0/T1/T2) + CCU6 - enables multi-phase PWM generation and input capture for encoder feedback |
| Supply Voltages | I/O: 3.3 V or 5.0 V; Core: 2.5 V (internally regulated) - allows direct interfacing with legacy 5 V peripherals while minimizing core power |
| Operating Temperature | –40 °C to +85 °C (SAF grade) - qualified for industrial ambient environments without derating |
| Package | PG-TSSOP-38 - surface-mount, 0.5 mm pitch, 9.7 × 4.4 mm footprint for compact PCB layout |
Pinout & Package
SAF-XC866-2FRI BC is housed in a 38-pin PG-TSSOP (Plastic Thin Shrink Small Outline Package) with exposed thermal pad, optimized for thermal dissipation in motor control applications. Pin functions are defined per Infineon's XC866 datasheet Rev. V1.2 (2007).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDP | Digital & I/O power supply | VDD = 3.3 V or 5.0 V main supply; VDDP powers port drivers and analog circuitry independently |
| VSS, VSSP | Digital & I/O ground | Separate digital and analog ground pins reduce noise coupling into ADC and timing circuits |
| XTAL1/XTAL2 | Crystal oscillator input/output | Supports external crystal (1–20 MHz) or ceramic resonator; internal OSC+PLL enables precise system clock derivation |
| P0.0–P0.7 | Port 0 bidirectional I/O | 8-bit quasi-bidirectional port with internal pull-ups; usable as general-purpose I/O or address/data bus multiplexed with external memory |
| P1.0–P1.7 | Port 1 bidirectional I/O | 8-bit quasi-bidirectional port; P1.6/P1.7 serve as CCU6 output channels for complementary PWM signals |
| P2.0–P2.2 | Port 2 bidirectional I/O | 3-bit port; P2.0–P2.2 map to ADC input channels AN0–AN2 for analog sensor interfacing |
| RXD/TXD | UART serial interface | Full-duplex asynchronous communication; RXD supports wake-up from power-down mode |
| EXINT0 | External interrupt input | Edge-triggered wake-up source during power-down; used for emergency stop or fault detection signals |
Key Features
| Feature | Design Value |
|---|---|
| On-chip voltage regulator | Generates stable 2.5 V core supply from 3.3 V/5.0 V input - eliminates need for external LDO in cost-sensitive designs |
| CCU6 capture/compare unit | 6-channel PWM with dead-time insertion and emergency shutdown - enables safe 3-phase inverter gate driving |
| Boot ROM with monitor firmware | 8 KB ROM including 1 KB debug monitor and 64 B RAM - supports in-system programming and real-time debugging without external tools |
| Flash memory protection | Configurable read-out and write protection for P-Flash and D-Flash - prevents unauthorized firmware access or accidental overwrite |
| Power management modes | Slow-down, idle, and power-down with wake-up on RXD/EXINT0 - reduces active current to <1 μA in deep sleep |
Applications
| Brushless DC Motor Control | Industrial Temperature Sensor Node |
|---|---|
Use Scenario: Closed-loop commutation of 3-phase BLDC motors using hall-effect or back-EMF sensing. IC Role / Device Role / Timing Role: Main controller executing FOC or six-step commutation, managing PWM timing via CCU6, and sampling current feedback via ADC. Use Value: Integrated CCU6 with dead-time control and emergency shutdown ensures safe inverter switching; 10-bit ADC resolves current ripple below 0.5% FS. | Use Scenario: Localized temperature monitoring in PLC I/O modules with analog RTD or thermistor inputs. IC Role / Device Role / Timing Role: Signal conditioner and local decision node - digitizes analog sensor output, applies linearization, and transmits via UART to master controller. Use Value: 8-channel ADC accepts multiple sensor inputs; 4 KB Flash stores calibration coefficients and firmware for field-upgradable compensation algorithms. |
| Smart Power Outlet Controller | Industrial Fan Speed Regulator |
Use Scenario: AC mains-connected outlet with load current monitoring, overcurrent trip, and remote status reporting. IC Role / Device Role / Timing Role: System-on-chip managing zero-crossing detection, current sampling, relay control, and UART-based telemetry. Use Value: Dual data pointers accelerate ADC-to-Flash logging; power-down mode with RXD wake-up enables low-power standby while retaining remote command responsiveness. | Use Scenario: Closed-loop speed control of 3-phase induction fans using voltage-frequency (V/f) method. IC Role / Device Role / Timing Role: Real-time PWM generator and tachometer interface - produces variable-frequency 3-phase outputs and reads encoder pulses via T2 capture. Use Value: Three independent 16-bit timers allow simultaneous PWM generation, speed measurement, and watchdog supervision without CPU overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAF-XC866-4FRI BC | 8 KB Flash (4 KB P-Flash + 4 KB D-Flash) vs. 4 KB total - doubles code space and data logging capacity | Suitable for larger control algorithms or integrated communication stacks (e.g., Modbus RTU) | Select when firmware exceeds 3.2 KB or requires persistent event logging beyond 2 KB |
| SAF-XC886-2FRI BC | Enhanced XC886 core with CAN 2.0B controller, 8 KB Flash, and higher ADC throughput - no CAN in XC866 | Required where fieldbus integration (e.g., CANopen motor nodes) is mandatory | Choose only if CAN physical layer and protocol stack support are essential to system architecture |
Compared with SAF-XC866-4FRI BC, this part trades flash capacity for lower cost and smaller footprint; versus SAF-XC886-2FRI BC, it omits CAN but retains identical ADC, CCU6, and power management - making it optimal for cost-constrained, CAN-free industrial motion control.
Availability
SAF-XC866-2FRI BC is available at Aetrix Electronics and suitable for brushless motor control, industrial sensor nodes, smart power outlets, and fan speed regulators requiring stable component supply across extended product lifecycles.
Supply support for SAF-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 ICs, and microcontrollers, with global R&D and manufacturing infrastructure.
The XC866 belongs to the XC800 family - designed specifically for cost-sensitive, high-reliability industrial motor control and sensor interface applications requiring integrated analog peripherals and robust flash memory.
FAQ
Does SAF-XC866-2FRI BC support LIN communication?
No. Unlike the XC866L variant, SAF-XC866-2FRI BC does not integrate LIN Bootloader (LIN BSL) hardware or firmware. It lacks dedicated LIN transceiver support and associated protocol stack resources. For LIN-compliant designs, the XC866L series or XC886 with integrated LIN controller must be selected.
What is the maximum ADC sampling rate achievable with SAF-XC866-2FRI BC?
The ADC supports up to 100 kSPS under optimal conditions: 10-bit resolution, internal clock derived from system clock divided by 4, and single-channel conversion. With 8-channel sequential sampling and auto-triggering, effective throughput drops to ~12.5 kSPS per channel due to acquisition time and conversion latency.
Can SAF-XC866-2FRI BC operate from a 3.3 V supply only?
Yes. The device supports both 3.3 V and 5.0 V nominal I/O supply (VDD/VDDP). When powered at 3.3 V, all GPIOs and analog inputs remain fully functional within their specified voltage ranges, and the internal 2.5 V core regulator maintains correct operation without external biasing.
Is there hardware debug support available on SAF-XC866-2FRI BC?
Yes. It includes on-chip debug support via 1 KB monitor ROM (within the 8 KB Boot ROM) and 64 B monitor RAM. This enables real-time debugging, flash programming, and breakpoint execution through Infineon's DAS (Debug Access Service) interface using standard JTAG or UART-based tools.
SAF-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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SAF-XC866-2FRI BC FAQ
1.How can I place an order for SAF-XC866-2FRI BC through Aetrix?
Please submit a Request for Quotation (RFQ) for SAF-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 SAF-XC866-2FRI BC reliable?
The price and inventory of SAF-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 SAF-XC866-2FRI BC is usually 5 days.
3.What payment methods are accepted for SAF-XC866-2FRI BC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SAF-XC866-2FRI BC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SAF-XC866-2FRI BC?
SAF-XC866-2FRI BC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SAF-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 SAF-XC866-2FRI BC?
For technical support, including SAF-XC866-2FRI BC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SAF-XC866-2FRI BC requirements.
6.How does Aetrix verify that SAF-XC866-2FRI BC is sourced from the original manufacturer or authorized distributors?
All SAF-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 SAF-XC866-2FRI BC meets industry standards.
7.What is the process for return or replacement of SAF-XC866-2FRI BC?
All SAF-XC866-2FRI BC units undergo pre-shipment inspection (PSI). If there is an issue with SAF-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 SAF-XC866-2FRI BC part is unused and in its original packaging.
Return procedure for SAF-XC866-2FRI BC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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