Infineon Technologies XC8664FRABEKXUMA1

Overview

XC8664FRABEKXUMA1 from Infineon Technologies is an 8-bit single-chip microcontroller based on the XC800 core, compatible with the standard 8051 instruction set and executing instructions at two clocks per machine cycle. It integrates 4 Kbytes of program Flash, 4 Kbytes of data Flash, 8 Kbytes of Boot ROM, 256 bytes of RAM, and 512 bytes of XRAM, and operates across industrial temperature range (–40 °C to +85 °C) with 5 V supply. It targets embedded motor control and industrial automation systems requiring integrated ADC, PWM, UART, and SSC.

For engineers reviewing the XC8664FRABEKXUMA1 datasheet, XC8664FRABEKXUMA1 pinout, XC8664FRABEKXUMA1 application, or XC8664FRABEKXUMA1 equivalent, this page delivers verified technical context, package mapping, functional role in real-time control loops, memory partitioning behavior, and validated alternative options for cost- or qualification-driven redesigns.

Technical Context

The XC8664FRABEKXUMA1 implements a two-clock-per-cycle 8051-compatible core with dual data pointers and on-chip voltage regulation generating 2.5 V core logic supply from 5 V I/O rails. Its memory architecture separates P-Flash (4 KB) and D-Flash (4 KB), both supporting memory protection via password-protected register access and page-based write control.

It features a 10-bit, 8-channel ADC with configurable sampling timing, a 16-bit CCU6 capture/compare unit for three-phase motor PWM generation, and full-duplex UART plus synchronous serial channel (SSC) with master/slave mode support - all independently clock-gated for power management in idle and slow-down modes.

Key Specifications

Pinout & Package

XC8664FRABEKXUMA1 is housed in a PG-TSSOP-38 package (38-pin thermally enhanced thin shrink small outline package) with 0.5 mm pitch, exposed thermal pad, and lead-free finish compliant with RoHS Directive 2002/95/EC.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with SAK-XC866-2FRA, XC8664FRABEKXUMA1 offers identical functionality at lower qualification cost for industrial use; versus XC886CN, it trades CAN and RAM for proven stability and reduced BOM complexity in fixed-function applications.

Availability

XC8664FRABEKXUMA1 is available at Aetrix Electronics and suitable for brushless motor control, industrial PLC modules, smart power outlets, and appliance main control units requiring stable component supply, long-term lifecycle assurance, and industrial temperature operation.

Supply support for XC8664FRABEKXUMA1 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 embedded controllers, with global R&D and manufacturing infrastructure.

XC866 belongs to the XC800 family designed specifically for cost-sensitive, real-time embedded control in industrial and consumer motor-driven systems - emphasizing integration of analog peripherals, robust Flash memory, and deterministic timing.

FAQ

What is the maximum operating frequency of the XC8664FRABEKXUMA1?

The XC8664FRABEKXUMA1 supports up to 26.67 MHz system clock via its internal PLL, derived from an external crystal (1–20 MHz) or ceramic resonator. The core executes instructions at 13.33 MIPS due to its two-clock-per-cycle architecture, enabling deterministic timing for motor control loops without wait states.

Does XC8664FRABEKXUMA1 support in-system programming (ISP)?

Yes - XC8664FRABEKXUMA1 supports ISP via UART using the on-chip LIN Bootloader (BSL) located in Boot ROM. Programming requires no external debugger; only a UART interface and valid password access to protected Flash sectors, with sector erase and byte-write capabilities fully implemented in hardware.

How is the ADC calibrated and what reference options are available?

The 10-bit ADC uses a factory-trimmed internal reference and supports external reference selection via the REFSEL bit. Calibration is performed at production using on-chip trim registers stored in Flash; users may apply software offset/gain correction using values stored in D-Flash, with no external components required for typical industrial accuracy.

Is the CCU6 unit capable of generating center-aligned PWM for motor control?

Yes - the CCU6 capture/compare unit supports both edge-aligned and center-aligned PWM modes with independent dead-time insertion on all three complementary output pairs. Center-aligned mode reduces harmonic content in motor drive waveforms and is configured via the CCM2 register's CCM2.CM bit and associated shadow transfer logic.