Infineon Technologies XC8664FRABEFXUMA1

Overview

XC8664FRABEFXUMA1 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 with a 5.0 V supply across –40 to 85 °C (SAF grade) for industrial motor control applications.

For engineers reviewing the XC8664FRABEFXUMA1 datasheet, XC8664FRABEFXUMA1 pinout, XC8664FRABEFXUMA1 application, or XC8664FRABEFXUMA1 equivalent, this device supports UART, SSC, 10-bit 8-channel ADC, three 16-bit timers, CCU6 PWM generation, and on-chip debug via monitor ROM/RAM - critical for embedded firmware development in cost-sensitive industrial systems.

Technical Context

The XC8664FRABEFXUMA1 implements a two-clock-per-cycle 8051-compatible core with dual data pointers and an embedded 2.5 V voltage regulator for core logic, while I/O ports operate at 5.0 V. Its memory architecture separates P-Flash (4 KB), D-Flash (4 KB), and Boot ROM (8 KB), each with configurable protection schemes including PASSWD register access control and page-level write protection.

Peripheral integration includes a 16-bit Capture/Compare Unit (CCU6) for high-resolution PWM, a 10-bit SAR ADC with 8 input channels and programmable sampling timing, and synchronous serial channel (SSC) supporting SPI-like master/slave modes - all clock-gated for power management in idle and power-down modes.

Key Specifications

Pinout & Package

XC8664FRABEFXUMA1 is housed in a PG-TSSOP-38 (38-pin Thin Shrink Small Outline Package) with 0.5 mm pitch, optimized for automated SMT assembly and thermal dissipation in compact industrial modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC8664FRABEFXUMA1, XC886L4FRA adds LIN support and flash capacity at higher cost and pin count, while SAK-XC866-2FRI offers identical functionality without automotive qualification - enabling trade-offs between compliance, protocol support, and BOM cost.

Availability

XC8664FRABEFXUMA1 is available at Aetrix Electronics and suitable for industrial motor control, smart power supply monitoring, embedded PLC I/O modules, and sensor interface systems requiring stable component supply across long production lifecycles.

Supply support for XC8664FRABEFXUMA1 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 microcontrollers, with global R&D and manufacturing infrastructure.

The XC866 belongs to the XC800 family, designed specifically for cost-optimized, real-time control in industrial and automotive subsystems requiring robust analog integration, deterministic timing, and flash-based firmware flexibility.

FAQ

What is the operating voltage range for XC8664FRABEFXUMA1?

The device operates with a 5.0 V ±5 % digital supply (VDDP) for I/O and analog circuitry, while its core logic runs at 2.5 V generated internally by an on-chip voltage regulator. The absolute maximum rating for VDDP is 5.5 V, and operation below 4.5 V triggers brownout reset. This dual-supply architecture ensures compatibility with standard 5 V industrial interfaces while minimizing core power consumption.

Does XC8664FRABEFXUMA1 support in-system programming (ISP)?

Yes, it supports ISP via UART using the integrated Boot ROM bootloader. The device includes a LIN-capable BSL only in XC866L variants; XC8664FRABEFXUMA1 uses UART-based BSL with configurable baud rates and checksum verification. Programming requires no external hardware beyond a UART-to-USB adapter and Infineon's DAVE™ or third-party tools compliant with the XC800 BSL protocol.

How is the 10-bit ADC calibrated and what is its typical accuracy?

The ADC features factory-trimmed offset and gain calibration stored in Boot ROM, applied automatically during initialization. Typical INL is ±1 LSB and DNL is ±0.5 LSB at 100 kSPS with AVDD = 5.0 V and reference derived from VDDP. Accuracy degrades linearly below 4.5 V supply; full-scale error remains within ±2% over the –40 to 85 °C range when using internal reference.

Can XC8664FRABEFXUMA1 be used in automotive applications?

Yes - XC8664FRABEFXUMA1 carries the SAF prefix indicating Automotive qualification per AEC-Q100 Grade 2 (–40 to 105 °C ambient), though its datasheet specifies operation up to 85 °C junction temperature. It meets automotive EMC requirements and includes brownout detection, watchdog timer, and Flash ECC support. However, it lacks LIN transceiver integration, so external LIN PHY is required for LIN bus applications.