Infineon Technologies XC8664FRIBEFXUMA1

Overview

XC8664FRIBEFXUMA1 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, operating at 5.0 V supply with industrial temperature range (–40 to +85 °C) in a PG-TSSOP-38 package. It targets embedded motor control and industrial automation systems requiring integrated ADC, PWM, UART, and SSC.

For engineers reviewing the XC8664FRIBEFXUMA1 datasheet, XC8664FRIBEFXUMA1 pinout, XC8664FRIBEFXUMA1 application, or XC8664FRIBEFXUMA1 equivalent, this page delivers verified technical context, validated pin functions, real-world use scenarios, and confirmed alternative options for cost-optimized industrial MCU selection.

Technical Context

The XC8664FRIBEFXUMA1 implements a two-clock-per-cycle 8051-compatible core with dual data pointers and on-chip voltage regulation generating 2.5 V for core logic from a 5.0 V supply. It includes a 10-bit, 8-channel ADC with programmable sampling rate and a dedicated 16-bit Capture/Compare Unit (CCU6) supporting three-phase motor control PWM generation with dead-time insertion.

Reset architecture combines power-on, hardware, brownout (for 2.5 V core), watchdog, and wake-up reset sources. Clocking uses an internal oscillator with optional external crystal (XTAL1/XTAL2) and PLL with loss-of-lock detection-enabling stable timing across variable load and temperature conditions in industrial environments.

Key Specifications

Pinout & Package

XC8664FRIBEFXUMA1 is housed in a 38-pin PG-TSSOP package (plastic thin shrink small outline package) with exposed thermal pad for improved heat transfer in continuous-duty applications. Pin functions are validated per Infineon XC866 Data Sheet V1.2 (2007), Section 3.1 "Pin Configuration" and Figure 3-1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SAK-XC866-4FRA and XC886CN-8FFI, XC8664FRIBEFXUMA1 offers optimal cost/performance balance for established industrial motor control designs where extended temp rating or higher ADC throughput is unnecessary.

Availability

XC8664FRIBEFXUMA1 is available at Aetrix Electronics and suitable for brushless DC motor control, industrial temperature controllers, smart power outlets, and serial protocol gateways requiring stable component supply and long-term industrial-grade availability.

Supply support for XC8664FRIBEFXUMA1 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 industrial MCUs, with global R&D and manufacturing infrastructure.

XC866 belongs to the XC800 family-designed specifically for cost-sensitive, high-reliability industrial and appliance motor control applications requiring integrated analog peripherals and robust real-time execution.

FAQ

Does XC8664FRIBEFXUMA1 support LIN communication natively?

No, XC8664FRIBEFXUMA1 does not include a hardware LIN bootloader. The XC866L variant is required for native LIN BSL support. However, its UART can be software-implemented for LIN 2.1 physical layer compliance when paired with a LIN transceiver such as the TLE7259-3GE.

What is the maximum ADC sampling rate achievable with XC8664FRIBEFXUMA1?

The ADC achieves up to 500 kSPS (0.5 million samples per second) under optimal conditions: internal clock source, single-channel mode, and minimal conversion delay settings. Actual throughput in multi-channel sequenced mode is lower due to channel switching overhead and sampling capacitor settling time.

Can the CCU6 module generate complementary PWM outputs with programmable dead time?

Yes, the CCU6 unit supports center-aligned complementary PWM outputs on up to three channels (CC60–CC62), with independent dead-time insertion (programmable in 12.5 ns steps) and emergency shutdown via EUDIS input-meeting IEC 60730 Class B requirements for motor safety.

Is external crystal required for reliable operation, or can the internal oscillator be used alone?

The internal RC oscillator is usable for non-timing-critical functions (e.g., UART at 9600 bps with ±5% tolerance), but for accurate baud rates, ADC timing, or PLL synchronization, an external crystal (1–20 MHz) on XTAL1/XTAL2 is required. XTAL1 includes hysteresis for noise immunity in electrically noisy environments.