Infineon Technologies XC864L1FRI5VAAKXUMA1
- Part No.:
- XC864L1FRI5VAAKXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
XC864L1FRI5VAAKXUMA1.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 20TSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
XC864L1FRI5VAAKXUMA1 from Infineon Technologies is an 8-bit single-chip microcontroller based on the XC800 core (8051-compatible), featuring 4 KB Flash, 256 B RAM, 512 B XRAM, and integrated peripherals including UART, SSC, 4-channel 8-bit ADC, three 16-bit timers, CCU6 capture/compare unit, and on-chip debug support. It operates at 5.0 V I/O supply with 2.5 V core voltage generated internally, targeting industrial motor control and embedded sensing applications.
For engineers reviewing the XC864L1FRI5VAAKXUMA1 datasheet, XC864L1FRI5VAAKXUMA1 pinout, XC864L1FRI5VAAKXUMA1 application, or XC864L1FRI5VAAKXUMA1 equivalent, key selection criteria include its TSSOP-20 package, -40 °C to +125 °C temperature range, integrated voltage regulator, Brownout reset, and CCU6-based PWM generation capability for timing-critical motor drive tasks.
Technical Context
The XC864L1FRI5VAAKXUMA1 implements a two-clock-per-machine-cycle 8051-compatible core enabling zero-wait-state memory access. Its clock system combines an on-chip 10 MHz oscillator with a PLL and loss-of-lock detection, supporting precise timing for motor control loops.
Peripheral integration includes a dedicated 16-bit CCU6 unit for complementary PWM output with dead-time insertion, a full-duplex UART with frame error detection, and a synchronous serial channel (SSC) configurable as SPI master/slave - all independently clock-gated for power optimization in idle modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | XC800 (8051-compatible), 2 clocks/machine cycle → enables deterministic instruction timing without wait states |
| Flash Memory | 4 KB → sufficient for compact motor control firmware with memory protection enabled |
| RAM | 256 bytes main RAM + 64 bytes monitor RAM → supports real-time variable storage and on-chip debug execution |
| ADC | 4-channel, 8-bit → suitable for basic analog sensor monitoring (e.g., current sense, thermistor inputs) |
| Timers | Three 16-bit timers (T0/T1/T2) + CCU6 → enables multi-channel PWM, input capture, and watchdog-independent timing |
| Supply Voltages | I/O: 5.0 V; Core: 2.5 V (internally regulated) → simplifies board-level power design with single external rail |
| Temperature Range | -40 °C to +125 °C (SAK grade) → qualified for under-hood automotive subsystems and industrial drives |
Pinout & Package
XC864L1FRI5VAAKXUMA1 is housed in a PG-TSSOP-20 (20-pin thin shrink small outline package) with 0.65 mm pitch, optimized for compact industrial PCB layouts and thermal performance in convection-cooled environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDP | I/O Power Supply | 5.0 V supply for Port 0–3 digital I/O and peripheral I/O buffers |
| VDDC | Core Power Supply | 2.5 V internal core voltage supplied via embedded regulator from VDDP |
| RESET | Active-Low Reset Input | Asynchronous reset trigger with internal pull-up; accepts external debounced signal or power-on reset pulse |
| P0.0–P0.5 | Port 0 Bidirectional I/O | 6 general-purpose pins; P0.0/P0.1 support UART TXD/RXD functions |
| P1.0/P1.1 | Port 1 Digital I/O | 2 pins configurable as digital I/O or CCU6 capture inputs (CAPREL0/CAPREL1) |
| P2.0–P2.2, P2.7 | Port 2 Analog/Digital I/O | 4 pins: P2.0–P2.2 serve as ADC inputs (AIN0–AIN2); P2.7 is ADC reference select (VAREF) |
| P3.0/P3.1 | Port 3 Serial Interface | P3.0 = SSC clock (SCLK); P3.1 = SSC data (SDO/SDI) - supports SPI-like communication |
| VAREF | Analog Reference Input | External reference voltage for ADC (0 V to VDDP), selectable via P2.7 |
| VAGND/VSSP | Analog Ground | Dedicated ground return for ADC and analog input circuitry to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| CCU6 Capture/Compare Unit | Generates complementary PWM outputs with programmable dead time - essential for half-bridge gate driving in BLDC motor control |
| On-chip Voltage Regulator | Internally generates stable 2.5 V core supply from 5.0 V VDDP - eliminates need for external LDO in cost-sensitive designs |
| Brownout Reset (BOR) | Detects core supply drop below 2.3 V threshold and triggers reset - prevents erratic operation during power transients |
| On-chip Debug Support | 1 KB monitor ROM + 64 B monitor RAM enables flash programming and real-time debugging without external emulator hardware |
| Power-Saving Modes | Idle and power-down modes with wake-up via RXD or EXINT0 - extends battery life in low-duty-cycle sensor nodes |
Applications
| Brushless DC Motor Control | Industrial Temperature Sensor Node |
|---|---|
Use Scenario: Closed-loop speed control of 3-phase BLDC motors in HVAC blowers and pump drivers. IC Role / Device Role / Timing Role: Primary controller executing commutation logic, reading Hall sensors via GPIO, generating 3-phase PWM via CCU6, and managing UART-based speed setpoint commands. Use Value: Integrated CCU6 with dead-time control eliminates external gate driver logic; 125 °C rating ensures reliability near motor windings. | Use Scenario: Standalone ambient temperature monitoring in factory automation cabinets with local display and alarm output. IC Role / Device Role / Timing Role: Data acquisition node sampling NTC thermistors via 8-bit ADC, processing linearization in firmware, and transmitting readings over UART to PLC. Use Value: On-chip 5 V-tolerant I/O interfaces directly with industrial 5 V sensor outputs; 125 °C operation avoids derating in enclosed enclosures. |
| Smart Power Outlet Controller | Low-Cost PLC I/O Module |
Use Scenario: Energy-monitoring smart outlet with relay control, current sensing, and RS-485 communication. IC Role / Device Role / Timing Role: System-on-chip managing zero-cross detection (via GPIO), shunt-based current ADC sampling, relay timing, and SSC-driven isolated RS-485 interface. Use Value: Three independent 16-bit timers enable concurrent zero-cross timing, ADC trigger scheduling, and UART baud rate generation without resource conflict. | Use Scenario: DIN-rail mounted digital input module converting 24 V DC field signals to Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Protocol handler running Modbus slave stack, scanning opto-isolated inputs via Port 0, and driving RS-485 transceiver via UART with hardware flow control. Use Value: 5 V I/O tolerance allows direct connection to 24 V optocoupler outputs via current-limiting resistors; watchdog timer ensures recovery from bus fault lockups. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAK-XC866L-4FRI5VAAKXUMA1 | 8 KB Flash, enhanced CCU6 with shadow registers and extended dead-time control | Supports more complex motor algorithms (e.g., FOC with fast current loop) | Select when firmware size exceeds 4 KB or advanced PWM synchronization is required |
| SAF-XC864L-1FRI3V3AAKXUMA1 | 3.3 V I/O supply, identical core/peripherals but lower max ambient temperature (−40 °C to +85 °C) | Suitable for non-automotive industrial panels with controlled thermal environment | Select when system uses 3.3 V logic rails and does not require extended temperature operation |
Compared with SAK-XC866L-4FRI5VAAKXUMA1, this part offers reduced Flash and CCU6 capability but lower cost and footprint; compared with SAF-XC864L-1FRI3V3AAKXUMA1, it trades I/O voltage compatibility for higher thermal resilience - making it optimal for 5 V systems operating in harsh environments.
Availability
XC864L1FRI5VAAKXUMA1 is available at Aetrix Electronics and suitable for brushless DC motor control, industrial temperature sensor nodes, smart power outlet controllers, and low-cost PLC I/O modules requiring stable component supply across extended temperature ranges.
Supply support for XC864L1FRI5VAAKXUMA1 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 industrial microcontrollers, with global R&D and manufacturing infrastructure.
The XC800 family - including XC864L1FRI5VAAKXUMA1 - was designed specifically for cost-sensitive, high-reliability embedded control in motor drives, appliance control, and industrial automation where integrated analog peripherals and robust timing are critical.
FAQ
Does XC864L1FRI5VAAKXUMA1 support in-system programming (ISP) via UART?
Yes. The device supports ISP using the on-chip Boot ROM and UART interface (P0.0/P0.1). Firmware updates can be performed without external programming hardware by entering boot mode via specific reset sequence and applying Intel HEX or binary files through standard UART terminal software.
What is the maximum ADC conversion rate for the 8-bit ADC channels?
The ADC achieves up to 100 kSPS maximum sampling rate with internal RC clock source. When synchronized to the system clock (via prescaler), effective throughput depends on CPU load but remains bounded by the 8-bit resolution and successive-approximation architecture - typical acquisition time is 13.5 µs per conversion.
Can the CCU6 unit generate center-aligned PWM waveforms?
Yes. The CCU6 supports center-aligned PWM mode using its CAPREL and CC6x registers. This configuration enables symmetrical duty-cycle modulation around the timer midpoint, reducing harmonic content in motor drive applications and improving EMI performance compared to edge-aligned PWM.
Is the 2.5 V core voltage externally accessible or monitored?
No. The 2.5 V core supply is generated internally by an embedded low-dropout regulator from VDDP and is not brought out to any pin. Voltage regulation status is not directly monitorable, but Brownout Reset (BOR) activates if core voltage falls below 2.3 V, providing functional safety against undervoltage conditions.
XC864L1FRI5VAAKXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 20-TSSOP (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:
- 9
- 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 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
XC864L1FRI5VAAKXUMA1 FAQ
1.How can I place an order for XC864L1FRI5VAAKXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for XC864L1FRI5VAAKXUMA1 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 XC864L1FRI5VAAKXUMA1 reliable?
The price and inventory of XC864L1FRI5VAAKXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XC864L1FRI5VAAKXUMA1 is usually 5 days.
3.What payment methods are accepted for XC864L1FRI5VAAKXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XC864L1FRI5VAAKXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XC864L1FRI5VAAKXUMA1?
XC864L1FRI5VAAKXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XC864L1FRI5VAAKXUMA1 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 XC864L1FRI5VAAKXUMA1?
For technical support, including XC864L1FRI5VAAKXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XC864L1FRI5VAAKXUMA1 requirements.
6.How does Aetrix verify that XC864L1FRI5VAAKXUMA1 is sourced from the original manufacturer or authorized distributors?
All XC864L1FRI5VAAKXUMA1 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 XC864L1FRI5VAAKXUMA1 meets industry standards.
7.What is the process for return or replacement of XC864L1FRI5VAAKXUMA1?
All XC864L1FRI5VAAKXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with XC864L1FRI5VAAKXUMA1, 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 XC864L1FRI5VAAKXUMA1 part is unused and in its original packaging.
Return procedure for XC864L1FRI5VAAKXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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