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Infineon Technologies SAF-XC866L-4FRI BC
- Part No.:
- SAF-XC866L-4FRI BC
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 38-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
SAF-XC866L-4FRI BC.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,762
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Product details
Overview
SAF-XC866L-4FRI BC from Infineon Technologies is an 8-bit single-chip microcontroller based on the XC800 core (8051-compatible), featuring 12 KB of program Flash, 4 KB of data Flash, 256 bytes RAM, and operating across –40 °C to +85 °C industrial temperature range. It integrates a 10-bit 8-channel ADC, three 16-bit timers, CCU6 capture/compare unit for PWM, UART, SSC, and on-chip debug support - deployed in motor control and power supply monitoring systems.
For engineers reviewing the SAF-XC866L-4FRI BC datasheet, SAF-XC866L-4FRI BC pinout, SAF-XC866L-4FRI BC application, or SAF-XC866L-4FRI BC equivalent, key selection criteria include Flash memory partitioning (P-Flash/D-Flash), LIN bootloader support (L variant), 3.3 V/5 V I/O compatibility, embedded voltage regulator (2.5 V core), and PG-TSSOP-38 package constraints.
Technical Context
The SAF-XC866L-4FRI BC implements an enhanced 8051 architecture with two clocks per machine cycle, enabling zero-wait-state execution from on-chip Flash. Its memory map includes separate 12 KB P-Flash for code and 4 KB D-Flash for EEPROM-like data storage, both protected by configurable write-lock bits and password-controlled access.
It features a dedicated CCU6 module supporting center-aligned PWM generation with dead-time insertion, hardware-triggered ADC conversions synchronized to timer overflows, and LIN 2.1-compliant bootloader firmware preloaded in Boot ROM - all managed under a unified clock tree derived from internal oscillator + PLL with loss-of-lock detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | XC800 (8051-compatible), 2-clock/machine cycle for zero-wait-state Flash execution |
| Program Memory | 12 KB P-Flash: executable code storage with sector protection and erase granularity |
| Data Memory | 4 KB D-Flash: nonvolatile data storage with byte-write capability and wear leveling support |
| ADC | 10-bit, 8-channel SAR ADC with hardware trigger from Timer 2 overflow or CCU6 event |
| PWM Generation | CCU6 module provides dual 16-bit PWM channels with programmable dead time and fault input |
| Operating Temp | –40 °C to +85 °C (SAF grade): qualified for industrial ambient without derating |
| I/O Voltage | 5.0 V tolerant digital I/O pins; core logic powered at 2.5 V via integrated regulator |
Pinout & Package
SAF-XC866L-4FRI BC is housed in a 38-pin PG-TSSOP package (lead pitch 0.5 mm, body width 4.4 mm), thermally optimized for industrial PCB layouts with exposed thermal pad. Pin functions align with XC800 family standardization, including dedicated LIN TX/RX on P0.0/P0.1 and CCU6 output pairs on P1.4–P1.7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDP | Digital & peripheral power supply | VDD = 5.0 V main supply; VDDP = 5.0 V I/O supply, decoupled separately for noise immunity |
| VSS, VSSP | Digital & peripheral ground | Separate ground returns minimize coupling between core logic and high-speed I/O switching |
| XTAL1/XTAL2 | Crystal oscillator input/output | Supports 1–20 MHz external crystal; internal oscillator usable if external source unavailable |
| P0.0 / P0.1 | LIN bus interface | Hardware LIN 2.1 transceiver pins with slew-rate control and wake-up detection |
| P1.4–P1.7 | CCU6 PWM outputs | Dedicated complementary PWM outputs with dead-time insertion and fault shutdown |
| AD0–AD7 | ADC analog inputs | Shared with Port 2 pins; internal multiplexer routes to 10-bit SAR converter with 11.5 µs conversion time |
Key Features
| Feature | Design Value |
|---|---|
| LIN Bootloader (L variant) | Pre-programmed LIN 2.1-compliant firmware in Boot ROM enables field firmware updates over single-wire bus |
| Dual Flash architecture | Independent P-Flash (12 KB) and D-Flash (4 KB) allow concurrent code execution and data logging without CPU intervention |
| CCU6 PWM engine | Hardware-accelerated center-aligned PWM with automatic dead-time insertion and external fault input for motor drive safety |
| On-chip debug support | 1 KB monitor ROM + 64 B monitor RAM enable real-time debugging via single-pin UART interface without external JTAG |
| Power management | Three low-power modes (slow-down, idle, power-down) with wake-up via RXD, EXINT0, or ADC event |
Applications
| Motor Control | Power Supply Monitoring |
|---|---|
Use Scenario: Brushless DC motor commutation in HVAC blowers and industrial fans. IC Role / Device Role / Timing Role: Real-time PWM generation, ADC-based current sensing, and LIN communication for system-level coordination. Use Value: CCU6 hardware PWM reduces CPU load by >40% vs. software-timed outputs; LIN interface enables centralized diagnostics. | Use Scenario: Secondary-side voltage/current monitoring in isolated AC/DC SMPS. IC Role / Device Role / Timing Role: Analog acquisition of feedback signals, digital regulation via PID loop, and status reporting over UART. Use Value: 10-bit ADC with hardware trigger ensures <1 µs timing jitter between sampling and interrupt response. |
| Industrial Sensor Node | LIN Subsystem Controller |
Use Scenario: Multi-sensor data aggregation (temperature, pressure, humidity) in factory automation nodes. IC Role / Device Role / Timing Role: Sensor interface hub with local preprocessing, flash-based data buffering, and LIN master node. Use Value: 4 KB D-Flash stores 24+ hours of timestamped sensor logs without external memory. | Use Scenario: Door module control in automotive body electronics (non-safety-critical). IC Role / Device Role / Timing Role: LIN slave node managing window lift, mirror adjustment, and switch inputs. Use Value: Integrated LIN bootloader allows OEMs to update firmware post-assembly without disassembly. |
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-XC886L-4FRI | Upgraded XC886 core: higher max frequency (27 MHz vs. 20 MHz), added CAN 2.0B controller | Requires CAN bus integration; larger code footprint due to extended peripheral register set | Select when CAN communication is mandatory and board layout supports additional routing |
| SAF-XE164F-48F132L | 16-bit C166-based core, 132 KB Flash, 12-bit ADC, no LIN bootloader | Targeted at higher-performance motor control; lacks native LIN firmware stack | Choose for complex motion algorithms where 8-bit throughput is insufficient |
Compared with SAF-XC866L-4FRI BC, SAF-XC886L-4FRI adds CAN but increases BOM cost and design complexity, while SAF-XE164F-48F132L delivers higher compute throughput at the expense of LIN support and Flash partitioning flexibility.
Availability
SAF-XC866L-4FRI BC is available at Aetrix Electronics and suitable for motor control, power supply monitoring, industrial sensor nodes, and LIN subsystem controllers requiring stable component supply across extended industrial temperature ranges.
Supply support for SAF-XC866L-4FRI 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 Infineon's XC800 family - designed specifically for cost-sensitive industrial and automotive body electronics applications requiring robust LIN connectivity, mixed-signal integration, and long-term supply stability.
FAQ
What is the purpose of the D-Flash memory in SAF-XC866L-4FRI BC?
The 4 KB D-Flash serves as emulated EEPROM for nonvolatile data storage - supporting byte-wise writes, wear leveling via firmware, and independent locking from P-Flash. It is used for calibration constants, device configuration, and logged sensor data without requiring external memory chips.
Does SAF-XC866L-4FRI BC support hardware LIN wake-up?
Yes - the L variant includes hardware LIN wake-up detection on P0.0 (LIN RX). When in power-down mode, the device wakes automatically upon valid LIN header detection, enabling ultra-low-power remote activation in battery-powered nodes.
Can the CCU6 module generate complementary PWM signals with dead time?
Yes - CCU6 provides two independent 16-bit PWM channels with hardware-configurable dead-time insertion (1–1023 clock cycles), automatic fault shutdown via external input, and center-aligned mode for reduced EMI in motor drive applications.
Is the Boot ROM accessible for user code execution?
No - the 8 KB Boot ROM is read-only and contains only the LIN bootloader and monitor firmware. User code must reside in P-Flash. The monitor ROM portion (1 KB) supports debug operations but cannot be overwritten or executed as application code.
SAF-XC866L-4FRI 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:
- LINbus, SSI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 19
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
SAF-XC866L-4FRI BC FAQ
1.How can I place an order for SAF-XC866L-4FRI BC through Aetrix?
Please submit a Request for Quotation (RFQ) for SAF-XC866L-4FRI 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-XC866L-4FRI BC reliable?
The price and inventory of SAF-XC866L-4FRI 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-XC866L-4FRI BC is usually 5 days.
3.What payment methods are accepted for SAF-XC866L-4FRI BC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SAF-XC866L-4FRI BC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SAF-XC866L-4FRI BC?
SAF-XC866L-4FRI BC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SAF-XC866L-4FRI 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-XC866L-4FRI BC?
For technical support, including SAF-XC866L-4FRI BC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SAF-XC866L-4FRI BC requirements.
6.How does Aetrix verify that SAF-XC866L-4FRI BC is sourced from the original manufacturer or authorized distributors?
All SAF-XC866L-4FRI 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-XC866L-4FRI BC meets industry standards.
7.What is the process for return or replacement of SAF-XC866L-4FRI BC?
All SAF-XC866L-4FRI BC units undergo pre-shipment inspection (PSI). If there is an issue with SAF-XC866L-4FRI 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-XC866L-4FRI BC part is unused and in its original packaging.
Return procedure for SAF-XC866L-4FRI BC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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