Infineon Technologies XC888CM8FFI5VACFXUMA1

Overview

XC888CM8FFI5VACFXUMA1 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 in two clock cycles. It integrates 32 KB Flash memory, 12 KB Boot ROM, 256 B RAM, and 1.5 KB XRAM, with dual-voltage I/O (3.3 V or 5.0 V) and internally regulated 2.5 V core supply. It supports CAN 2.0B via MultiCAN, LIN, UART, SSC, 10-bit 8-channel ADC, CCU6, and on-chip debug via JTAG.

For engineers reviewing the XC888CM8FFI5VACFXUMA1 datasheet, XC888CM8FFI5VACFXUMA1 pinout, XC888CM8FFI5VACFXUMA1 application, or XC888CM8FFI5VACFXUMA1 equivalent, key selection considerations include its integrated MultiCAN controller, dual-voltage I/O capability, on-chip voltage regulator, flash-based programmability, and support for automotive-grade LIN and PWM timing functions.

Technical Context

The XC888CM8FFI5VACFXUMA1 implements a two-cycle-per-instruction XC800 core derived from the 8051 architecture, enabling zero-wait-state memory access. It features an embedded 2.5 V voltage regulator supplying the core while supporting independent 3.3 V or 5.0 V I/O operation - critical for mixed-voltage system interfacing.

Its peripheral set includes a full MultiCAN 2.0B controller with message objects and acceptance filtering, a hardware LIN 2.1-compliant baud-rate detection unit, and a 16-bit CCU6 module optimized for motor control with dead-time insertion and capture/compare channels. The 10-bit ADC supports up to 8 input channels with configurable sampling timing and conversion sequence control.

Key Specifications

Pinout & Package

XC888CM8FFI5VACFXUMA1 is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments are defined per Infineon's DS V1.2 Figure 2.3 (Pin Configuration) and Table 2.4 (Pin Definitions).

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC878CM8FFI5VACFXUMA1 and SAK-TC1766-128F133HR BA, the XC888CM8FFI5VACFXUMA1 delivers optimal integration for cost-sensitive 8-bit automotive body control - retaining full LIN/CAN peripheral support and dual-voltage I/O while avoiding over-specification in Flash size or bit-width.

Availability

XC888CM8FFI5VACFXUMA1 is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor interface units, smart power distribution systems, and diagnostic communication gateways requiring stable component supply across extended product lifecycles.

Supply support for XC888CM8FFI5VACFXUMA1 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 security solutions, with global R&D and manufacturing infrastructure.

The XC800 family was designed specifically for cost-optimized, ASIL-B-capable automotive body electronics - emphasizing integrated analog/motor control peripherals, dual-voltage I/O, and robust on-chip regulation for 12 V vehicle electrical systems.

FAQ

Does XC888CM8FFI5VACFXUMA1 support CAN FD?

No. The XC888CM8FFI5VACFXUMA1 integrates a MultiCAN 2.0B controller compliant with ISO 11898-1:2003, supporting data rates up to 1 Mbps and 11-/29-bit identifiers. CAN FD functionality requires a separate CAN FD controller such as those found in Infineon's AURIX™ TC3xx series, which is not present in this 8-bit device.

What is the maximum operating frequency of the XC800 core in this device?

The XC800 core operates at a maximum CPU clock frequency of 26.67 MHz, derived from the PLL output. This corresponds to 13.33 million instructions per second (MIPS), as each instruction executes in two clock cycles. The PLL accepts input frequencies from 1 MHz to 20 MHz and supports multiplication factors of ×1 to ×4.

Is the Boot ROM field-programmable or read-only?

The 12 KB Boot ROM is factory-programmed and read-only. It contains the bootloader and essential startup routines, including flash programming algorithms and CRC check logic. User code cannot modify it, ensuring reliable recovery even after corrupted application Flash sectors.

Can the internal voltage regulator power external circuitry?

No. The internal 2.5 V voltage regulator supplies only the XC800 core logic and on-chip peripherals. Its output is not accessible externally and lacks the current capacity (>100 mA) or regulation stability required for powering external ICs. External loads must be powered separately from VDDP.