Infineon Technologies XC8662FRABEFXUMA1

Overview

XC8662FRABEFXUMA1 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 Flash program memory, 512 bytes of XRAM, 256 bytes of RAM, and 8 Kbytes of Boot ROM with on-chip debug monitor. It operates with 5.0 V I/O supply and 2.5 V core logic supply (internally regulated), and targets automotive motor control and body electronics applications.

For engineers reviewing the XC8662FRABEFXUMA1 datasheet, XC8662FRABEFXUMA1 pinout, XC8662FRABEFXUMA1 application, or XC8662FRABEFXUMA1 equivalent, key selection criteria include its 10-bit 8-channel ADC resolution, CCU6 capture/compare unit for PWM generation, UART/SSC serial interfaces, watchdog timer configurability, and PG-TSSOP-38 package compatibility with automotive-grade thermal range (–40 °C to 125 °C).

Technical Context

The XC8662FRABEFXUMA1 implements a two-clock-per-cycle 8051-compatible core with dual data pointers and integrated voltage regulation delivering 2.5 V to the core from a 5.0 V supply. Its memory architecture separates 4 Kbytes of P-Flash (program) and 4 Kbytes of D-Flash (data), both supporting memory protection via PASSWD register access control and page-based addressing with rwh (read/write/hardware) access type.

Peripheral integration includes three 16-bit timers (T0/T1/T2), a dedicated 16-bit CCU6 unit for high-resolution PWM and dead-time insertion, a full-duplex UART, synchronous serial channel (SSC), and an 8-channel 10-bit SAR ADC with configurable sampling timing and reference selection. Reset sources include power-on, brownout (core supply), watchdog, and external interrupt wake-up from power-down mode.

Key Specifications

Pinout & Package

XC8662FRABEFXUMA1 is housed in a 38-pin PG-TSSOP (Plastic Thin Shrink Small Outline Package) with exposed thermal pad, optimized for thermal dissipation in motor control modules. Pin functions are defined per the XC866 datasheet revision V1.2 (2007), with dedicated pins for CCU6 outputs, ADC inputs, UART/SSC signals, and reset/wake-up triggers.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC8662FRABEFXUMA1, the XC886L2FRA adds CAN and higher Flash but increases BOM cost and design complexity, while the TC1766 delivers orders-of-magnitude compute headroom at higher power and footprint-making the XC866 optimal for cost-constrained, functionally focused automotive subsystems.

Availability

XC8662FRABEFXUMA1 is available at Aetrix Electronics and suitable for automotive fan control, BLDC motor starter, body control module, and window lift controller applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for XC8662FRABEFXUMA1 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 security solutions, with global R&D and manufacturing infrastructure.

The XC866 belongs to the XC800 family, designed specifically for cost-optimized automotive body and powertrain applications where 8-bit performance, robustness, and integrated peripherals like CCU6 and LIN-capable UART meet functional safety and thermal requirements.

FAQ

Does XC8662FRABEFXUMA1 support LIN physical layer communication?

No, the XC8662FRABEFXUMA1 does not integrate a LIN transceiver. However, its UART supports LIN 2.1 protocol implementation via software bit-banging or external LIN transceivers such as TLE7259-3GE. The device provides necessary timing accuracy and GPIO flexibility for reliable LIN frame generation and reception.

What is the maximum operating frequency of the XC8662FRABEFXUMA1 core?

The XC8662FRABEFXUMA1 core runs at up to 26.67 MHz with a 13.33 MHz crystal input and PLL multiplication (×2). This yields a 2-clock-per-cycle execution speed of 13.33 million instructions per second (MIPS), confirmed in Section 3.1 of the V1.2 datasheet.

Is the 4 Kbytes of D-Flash electrically erasable and reprogrammable in-circuit?

Yes, the 4 Kbytes of D-Flash is fully in-system programmable (ISP) and supports byte/word erase and write operations during application runtime. It uses the same Flash controller and protection mechanism as P-Flash, with dedicated command sequences defined in the "Flash Programming" section of the datasheet.

How is the CCU6 unit synchronized with the ADC for motor current sampling?

The CCU6 includes trigger outputs (e.g., CC60SR0) that can be configured to generate precise timing events aligned with PWM center points or edges. These signals directly initiate ADC conversions via the ADC's external trigger input, ensuring deterministic sampling of motor phase currents at optimal commutation intervals.