My Inquiry
My Account
Infineon Technologies SAF-XC866-1FRA AB
- Part No.:
- SAF-XC866-1FRA AB
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 38-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
SAF-XC866-1FRA AB.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,843
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SAF-XC866-1FRA AB from Infineon Technologies is an 8-bit single-chip microcontroller based on the XC800 core (8051-compatible), featuring 4 Kbytes of data Flash (D-Flash), 8 Kbytes of Boot ROM, 256 bytes of RAM, and operating at 5.0 V supply with –40 to +85 °C industrial temperature range. It integrates a 10-bit 8-channel ADC, three 16-bit timers, UART, SSC, CCU6 PWM unit, and on-chip debug support - deployed in motor control and power conversion systems.
For engineers reviewing the SAF-XC866-1FRA AB datasheet, SAF-XC866-1FRA AB pinout, SAF-XC866-1FRA AB application, or SAF-XC866-1FRA AB equivalent, key selection criteria include D-Flash size (4 KB), absence of program Flash (P-Flash), automotive-grade qualification (SAF prefix), TSSOP-38 package, and integrated voltage regulator supplying core logic at 2.5 V.
Technical Context
The SAF-XC866-1FRA AB implements an enhanced 8051-compatible XC800 core with two-clock-per-machine-cycle execution, enabling zero-wait-state memory access. It uses an embedded voltage regulator to generate a stable 2.5 V core supply from a 5.0 V I/O rail, decoupling analog/digital performance from external supply noise.
Its peripheral set includes a Capture/Compare Unit (CCU6) for high-resolution PWM generation, a full-duplex UART with configurable baud rate generator, and a synchronous serial channel (SSC) supporting SPI-like master/slave operation - all clock-gated for power management in idle and power-down modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | XC800 (8051-compatible), 2 clocks/machine cycle → enables deterministic timing without wait states |
| Memory Configuration | 4 KB D-Flash (data storage only), 8 KB Boot ROM, 256 B RAM, 512 B XRAM → supports firmware boot and runtime parameter logging |
| ADC | 10-bit, 8-channel SAR ADC with programmable sampling → suitable for motor phase current sensing and voltage monitoring |
| Timers & PWM | Three 16-bit timers + CCU6 capture/compare unit → enables dual-edge PWM, dead-time insertion, and time-stamped event capture |
| Supply & Regulation | 5.0 V I/O supply, internal 2.5 V core regulator → isolates digital logic noise from analog peripherals and reduces external component count |
| Operating Temperature | –40 °C to +85 °C (SAF grade) → qualified for industrial environments including HVAC and industrial drives |
| Package | PG-TSSOP-38, 0.65 mm pitch → surface-mount compatible with automated assembly and moderate thermal dissipation |
Pinout & Package
SAF-XC866-1FRA AB is housed in a 38-pin PG-TSSOP package (plastic thin shrink small outline package) with exposed thermal pad, optimized for board space efficiency and thermal performance in compact motor control modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDP | Digital I/O power supply | 5.0 V input for port pins; powers GPIO, UART, SSC, and ADC reference circuitry |
| VDD | Core logic supply | Internally regulated 2.5 V output from embedded regulator; powers CPU and internal registers |
| XTAL1 / XTAL2 | Crystal oscillator inputs | Supports external crystal (1–20 MHz) or ceramic resonator; PLL input for system clock generation |
| P0.0–P0.7 | Port 0 bidirectional I/O | 8-bit port with alternate functions: UART RXD/TXD, SSC signals, timer inputs, and ADC inputs |
| P1.0–P1.4 | Port 1 bidirectional I/O | 5-bit port supporting CCU6 outputs, external interrupt (EXINT0), and general-purpose digital I/O |
| P2.0–P2.7 | Port 2 bidirectional I/O | 8-bit port with ADC channel inputs (AN0–AN7), timer capture inputs, and watchdog reset control |
| P3.0–P3.5 | Port 3 bidirectional I/O | 6-bit port supporting UART, SSC, and external interrupt (EXINT1); limited analog capability |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug support | 1 KB monitor ROM + 64 B monitor RAM enables real-time debugging without external emulator hardware |
| Power management modes | Slow-down, idle, and power-down with wake-up via RXD or EXINT0 → extends battery life in low-duty-cycle sensor nodes |
| Brownout reset (BOR) | Detects core supply (VDD) drop below 2.3 V → prevents erratic code execution during unstable power conditions |
| Memory protection strategy | Configurable write-protection for D-Flash and Boot ROM → safeguards calibration data and bootloader integrity |
| CCU6 PWM unit | Dual 16-bit capture/compare channels with dead-time control → supports 3-phase inverter gate drive with safety timing margins |
Applications
| Motor Control | Industrial Power Supplies |
|---|---|
Use Scenario: Brushless DC (BLDC) motor commutation in HVAC blowers and pump drivers. IC Role / Device Role / Timing Role: Real-time PWM generation, ADC-based current sensing, and closed-loop speed regulation via CCU6 and 10-bit ADC. Use Value: Enables precise 6-step or FOC control with <1 µs timer resolution and synchronized sampling of motor phase currents. | Use Scenario: Digital control loop in AC-DC SMPS with PFC stage and isolated DC-DC converter. IC Role / Device Role / Timing Role: Voltage/current loop controller using ADC inputs and CCU6 PWM outputs driving MOSFET gate drivers. Use Value: Achieves <1% output regulation accuracy with adaptive compensation and fast transient response under load step changes. |
| Home Appliance Control | Industrial Sensor Interface |
Use Scenario: Main control MCU in washing machine drum motor and water valve sequencing. IC Role / Device Role / Timing Role: Coordinating motor direction/speed, solenoid actuation, and user interface via UART and GPIO. Use Value: Integrates all control functions in one chip, eliminating external logic and reducing BOM cost by >15% vs. discrete MCU+peripheral solution. | Use Scenario: Signal conditioning and protocol translation for 4–20 mA transmitters in factory automation. IC Role / Device Role / Timing Role: ADC digitization of analog sensor output, UART-based Modbus RTU transmission, and watchdog-monitored operation. Use Value: Provides galvanically isolated communication interface with built-in error detection and automatic retransmission on timeout. |
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-XC866-2FRA AB | Includes 4 KB P-Flash (program memory) in addition to 4 KB D-Flash → supports field-upgradable firmware | Required where over-the-air or local firmware updates are needed (e.g., smart metering) | Select when code storage beyond Boot ROM is required; same pinout and peripheral set |
| SAF-XC886-1FRA AB | Upgraded XC886 core with higher clock frequency (up to 40 MHz), additional 2 KB RAM, and CAN 2.0B interface | Suitable for systems requiring CAN bus connectivity (e.g., automotive body control modules) | Choose only if CAN communication is mandatory; not pin-compatible due to larger package (TQFP-48) |
Compared with SAF-XC866-2FRA AB, this part trades program memory flexibility for lower cost and smaller footprint; versus SAF-XC886-1FRA AB, it lacks CAN but delivers identical analog/peripheral performance in a more compact, cost-sensitive TSSOP-38 package.
Availability
SAF-XC866-1FRA AB is available at Aetrix Electronics and suitable for motor control, industrial power supplies, home appliance control, and industrial sensor interface applications requiring stable component supply across extended product lifecycles.
Supply support for SAF-XC866-1FRA AB 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 semiconductors, microcontrollers, and security solutions for automotive, industrial, and power management markets.
The XC866 belongs to the XC800 family, designed specifically for cost-sensitive, high-reliability embedded control in motor drives, power conversion, and industrial automation - emphasizing integration, robustness, and low-system-cost implementation.
FAQ
Does SAF-XC866-1FRA AB include program Flash memory?
No. This variant contains 4 Kbytes of data Flash (D-Flash) only, with no program Flash (P-Flash). Code execution occurs from the 8 Kbytes of Boot ROM or external memory. The "1" in the part number denotes zero P-Flash capacity, distinguishing it from -2FRA (4 KB P-Flash) and -4FRA (12 KB P-Flash) variants.
What is the function of the VDDP pin?
VDDP supplies 5.0 V to all I/O ports, ADC reference circuitry, and peripheral interfaces (UART, SSC, CCU6 outputs). It is electrically separate from the internally regulated 2.5 V VDD core supply, allowing independent noise management and enabling mixed-voltage signal interfacing without level shifters.
Is on-chip debug supported, and what resources does it use?
Yes. On-chip debug uses 1 Kbyte of dedicated monitor ROM (within the 8 Kbyte Boot ROM) and 64 bytes of monitor RAM. It supports breakpoint setting, register inspection, and real-time variable monitoring via UART without requiring external JTAG hardware - ideal for production line firmware validation and field diagnostics.
Can SAF-XC866-1FRA AB operate from a 3.3 V supply?
No. The SAF-XC866-1FRA AB is specified only for 5.0 V operation (VDDP = 5.0 V ±10%). While the core logic runs at 2.5 V internally, the I/O voltage domain requires 5.0 V. For 3.3 V operation, select the "3V" suffix variant (e.g., SAF-XC866-1FRA 3V), which is a distinct orderable part with different electrical specifications.
SAF-XC866-1FRA AB 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:
- 4KB (4K 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-XC866-1FRA AB FAQ
1.How can I place an order for SAF-XC866-1FRA AB through Aetrix?
Please submit a Request for Quotation (RFQ) for SAF-XC866-1FRA AB 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-XC866-1FRA AB reliable?
The price and inventory of SAF-XC866-1FRA AB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SAF-XC866-1FRA AB is usually 5 days.
3.What payment methods are accepted for SAF-XC866-1FRA AB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SAF-XC866-1FRA AB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SAF-XC866-1FRA AB?
SAF-XC866-1FRA AB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SAF-XC866-1FRA AB 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-XC866-1FRA AB?
For technical support, including SAF-XC866-1FRA AB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SAF-XC866-1FRA AB requirements.
6.How does Aetrix verify that SAF-XC866-1FRA AB is sourced from the original manufacturer or authorized distributors?
All SAF-XC866-1FRA AB 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-XC866-1FRA AB meets industry standards.
7.What is the process for return or replacement of SAF-XC866-1FRA AB?
All SAF-XC866-1FRA AB units undergo pre-shipment inspection (PSI). If there is an issue with SAF-XC866-1FRA AB, 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-XC866-1FRA AB part is unused and in its original packaging.
Return procedure for SAF-XC866-1FRA AB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SAF-XC866-1FRA AB Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…
Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…
