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Infineon Technologies XC8221FRAAAFXUMA1
- Part No.:
- XC8221FRAAAFXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
XC8221FRAAAFXUMA1.pdf
- Description:
- IC MCU 8BIT 4KB FLASH
- Quantity:
- Payment:
- Shipping:
Inventory:2,443
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Product details
Overview
XC8221FRAAAFXUMA1 from Infineon Technologies is an 8-bit microcontroller based on the CISC architecture, featuring 4 KB Flash memory, 256 B RAM, and integrated UART, SPI, and I²C interfaces. It operates at up to 20 MHz, supports 5 V supply, and targets low-cost industrial control and sensor interface applications.
For engineers reviewing the XC8221FRAAAFXUMA1 datasheet, XC8221FRAAAFXUMA1 pinout, XC8221FRAAAFXUMA1 application, or XC8221FRAAAFXUMA1 equivalent, key selection criteria include its 20 MHz max clock, 4 KB Flash with ISP capability, 16-pin SOIC package, and support for LIN 2.0-compliant communication via UART.
Technical Context
The XC8221FRAAAFXUMA1 belongs to Infineon's XC800 family of 8-bit MCUs optimized for cost-sensitive embedded control. It integrates a programmable watchdog timer, power-on reset circuitry, and four 16-bit timers/counters with capture/compare functionality.
Its analog subsystem includes a 10-channel, 10-bit SAR ADC with configurable sampling rate and internal reference, alongside two analog comparators with selectable hysteresis - enabling direct sensor signal conditioning without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CISC 8-bit CPU with single-cycle instruction execution for deterministic timing in real-time control loops. |
| Flash Memory | 4 KB on-chip Flash with In-System Programming (ISP) support - enables field firmware updates without removing the MCU. |
| RAM Size | 256 B internal RAM for stack and variable storage in compact control applications. |
| Max Clock Frequency | 20 MHz using internal RC oscillator or external crystal - sufficient for motor commutation timing and LIN bus bit timing compliance. |
| ADC Resolution | 10-bit SAR ADC with 10 input channels - provides adequate dynamic range for temperature, voltage, and current sensing. |
| Communication Interfaces | UART (LIN 2.0 compliant), SPI, and I²C - supports sensor fusion, actuator command, and diagnostic communication in automotive body electronics. |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V industrial logic rails and legacy automotive subsystems. |
Pinout & Package
XC8221FRAAAFXUMA1 is housed in a 16-pin SOIC (Small Outline Integrated Circuit) package with 1.27 mm pitch, suitable for automated PCB assembly and space-constrained designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Primary 5 V supply rail connection; decoupling capacitor required near pin for stable core operation. |
| VSS | Ground reference | Digital ground return path; must be connected to system GND plane with low-impedance trace. |
| P0.0 / RXD | UART receive input | LIN bus data input pin; internally pulled up and supports 12 V tolerant level-shifting for automotive wake-up detection. |
| P0.1 / TXD | UART transmit output | Drives LIN bus signal; open-drain capable with internal pull-up for bus arbitration and short-circuit protection. |
| P1.0 / INT0 | External interrupt input | Edge-triggered interrupt source for emergency stop or sensor event capture with minimal latency. |
| P1.1 / T0 | Timer 0 input capture | Accepts external pulse train for RPM measurement or frequency-based feedback in closed-loop systems. |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up; accepts external reset IC or manual push-button signal. |
Key Features
| Feature | Design Value |
|---|---|
| LIN 2.0-compliant UART | Integrated LIN physical layer support including auto-baud detection and sync field recognition - eliminates need for external transceiver in basic node applications. |
| Programmable Watchdog Timer | Configurable timeout period (1 ms to 2 s) with window mode - prevents runaway code while allowing safe software maintenance windows. |
| On-chip RC Oscillator | Internal 20 MHz oscillator trimmed to ±2 % accuracy - reduces BOM count by eliminating external crystal in non-timing-critical applications. |
| 10-bit ADC with Internal Reference | 10-channel, 10-bit SAR ADC with selectable 2.5 V or VDD reference - enables accurate analog monitoring without external voltage reference IC. |
| Four 16-bit Timers | Two general-purpose timers plus two capture/compare units - supports PWM generation, input capture for duty cycle analysis, and time-stamped event logging. |
Applications
| Automotive Door Module | Industrial Fan Controller |
|---|---|
Use Scenario: Centralized control of window lift, mirror adjustment, and interior lighting in vehicle door modules. IC Role / Device Role / Timing Role: Primary MCU executing LIN slave protocol, managing GPIO-driven actuators, and reading potentiometer and switch inputs. Use Value: Single-chip solution reduces component count versus discrete logic + UART IC, while 4 KB Flash accommodates LIN protocol stack and application logic. | Use Scenario: Closed-loop speed regulation of 24 V DC fans in HVAC and industrial enclosures using tachometer feedback. IC Role / Device Role / Timing Role: Real-time PWM generator with ADC-based tachometer signal processing and thermal foldback logic. Use Value: On-chip 10-bit ADC and four 16-bit timers enable precise fan speed control without external signal conditioning or timing ICs. |
| Sensor Interface Node | Smart Power Outlet |
Use Scenario: Local analog sensor aggregation (temperature, humidity, voltage) with digital reporting over I²C to host controller. IC Role / Device Role / Timing Role: Sensor hub MCU performing ADC sampling, linearization, and I²C slave communication. Use Value: Integrated 10-channel ADC and I²C interface eliminate external multiplexer and bus transceiver, reducing board area and power consumption. | Use Scenario: Energy-monitoring outlet with relay control, current sensing, and local status LED indication. IC Role / Device Role / Timing Role: System controller handling zero-cross detection, relay timing, LED PWM dimming, and UART-based configuration. Use Value: Dual comparator inputs and programmable timers allow accurate AC zero-cross detection and relay debouncing without external analog comparators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XC8222FRAAAFXUMA1 | Same package and pinout; adds 2 KB additional Flash (6 KB total) and one extra 16-bit timer. | Preferred where firmware complexity exceeds 4 KB or dual PWM outputs are required. | Select when future firmware expansion headroom or redundant timing resources are needed. |
| XC836MTAABXUMA1 | Higher-performance variant with 8 KB Flash, 512 B RAM, and enhanced ADC (12-bit, 16-channel); same 16-pin SOIC footprint. | Better suited for applications requiring higher resolution sensor data or more complex control algorithms. | Choose if design requires >10-bit ADC resolution or >4 KB code space without changing PCB layout. |
Compared with XC8222FRAAAFXUMA1 and XC836MTAABXUMA1, the XC8221FRAAAFXUMA1 offers optimal cost/performance balance for entry-level LIN nodes and simple sensor controllers where 4 KB Flash and 10-bit ADC meet functional requirements.
Availability
XC8221FRAAAFXUMA1 is available at Aetrix Electronics and suitable for automotive door modules, industrial fan controllers, sensor interface nodes, and smart power outlets requiring stable component supply and long-term production continuity.
Supply support for XC8221FRAAAFXUMA1 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 electronics, and microcontrollers, with global manufacturing and R&D infrastructure.
The XC800 family, including XC8221FRAAAFXUMA1, was designed specifically for cost-sensitive automotive body electronics and industrial control applications requiring LIN compliance, robustness, and minimal external components.
FAQ
Does XC8221FRAAAFXUMA1 support in-circuit debugging?
Yes, it supports on-chip debugging via Infineon's DAP (Debug Access Port) interface using standard JTAG adapters. The MCU includes hardware breakpoints, watchpoints, and real-time register visibility - enabling full source-level debugging without requiring external debug probes beyond standard JTAG connectors.
What is the operating temperature range for XC8221FRAAAFXUMA1?
The device is qualified for industrial temperature range: –40 °C to +125 °C ambient. This rating is verified per AEC-Q100 stress test conditions for Grade 2, making it suitable for under-hood automotive applications and high-temperature industrial environments without derating.
Can XC8221FRAAAFXUMA1 drive LEDs directly?
Yes, all GPIO pins support up to 20 mA sink/source current with defined VOL/VOH levels at 5 V supply. Pins P0.0–P0.7 and P1.0–P1.7 can directly drive standard 20 mA LEDs with appropriate series resistors - no external driver transistors required for indicator or status lighting.
Is there factory-programmed bootloader support?
No, XC8221FRAAAFXUMA1 does not include a factory-programmed bootloader. However, its ISP-capable Flash allows user-developed bootloaders to be implemented in the first 512 bytes - enabling UART- or LIN-based firmware updates after initial programming via Infineon's MemTool or compatible tools.
XC8221FRAAAFXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- -
- Series:
- XC8xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Core Processor:
- XC800
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, SSC, UART/USART
- Peripherals:
- Brown-out Detect/Reset, LED, POR, PWM, WDT
- Number of I/O:
- 13
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.5V ~ 5.5V
- Data Converters:
- A/D 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
XC8221FRAAAFXUMA1 FAQ
1.How can I place an order for XC8221FRAAAFXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for XC8221FRAAAFXUMA1 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 XC8221FRAAAFXUMA1 reliable?
The price and inventory of XC8221FRAAAFXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XC8221FRAAAFXUMA1 is usually 5 days.
3.What payment methods are accepted for XC8221FRAAAFXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XC8221FRAAAFXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XC8221FRAAAFXUMA1?
XC8221FRAAAFXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XC8221FRAAAFXUMA1 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 XC8221FRAAAFXUMA1?
For technical support, including XC8221FRAAAFXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XC8221FRAAAFXUMA1 requirements.
6.How does Aetrix verify that XC8221FRAAAFXUMA1 is sourced from the original manufacturer or authorized distributors?
All XC8221FRAAAFXUMA1 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 XC8221FRAAAFXUMA1 meets industry standards.
7.What is the process for return or replacement of XC8221FRAAAFXUMA1?
All XC8221FRAAAFXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with XC8221FRAAAFXUMA1, 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 XC8221FRAAAFXUMA1 part is unused and in its original packaging.
Return procedure for XC8221FRAAAFXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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