Infineon Technologies XC888CM8FFI3V3ACFXUMA1

Overview

XC888CM8FFI3V3ACFXUMA1 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, 12 KB Boot ROM, 256 B RAM, and 1.5 KB XRAM, with dual-voltage I/O (3.3 V) and internally regulated 2.5 V core supply. It supports CAN 2.0B via MultiCAN, 10-bit 8-channel ADC, and LIN protocol - deployed in automotive body control modules requiring deterministic real-time response.

For engineers reviewing the XC888CM8FFI3V3ACFXUMA1 datasheet, XC888CM8FFI3V3ACFXUMA1 pinout, XC888CM8FFI3V3ACFXUMA1 application, or XC888CM8FFI3V3ACFXUMA1 equivalent, key selection considerations include its embedded voltage regulator enabling single-supply operation, MultiCAN interface with message object handling, LIN header detection capability, 16-bit CCU6 for motor control timing, and on-chip debug support via JTAG.

Technical Context

The XC888CM8FFI3V3ACFXUMA1 implements a two-cycle-per-instruction 8051-compatible CPU core with dual data pointers and hardware multiplication/division (MDU) plus CORDIC coprocessor for trigonometric computation. Its memory protection strategy includes flash lock bits and password-protected register access to prevent unauthorized reprogramming.

It features a multi-source interrupt system with programmable priority levels, six 16-bit timers (including Timer 2/21 and CCU6), and a synchronous serial interface (SSC) supporting master/slave SPI-like operation. The MultiCAN module supports up to 64 message objects with flexible acceptance filtering and time-triggered communication support.

Key Specifications

Pinout & Package

XC888CM8FFI3V3ACFXUMA1 is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad for enhanced power dissipation in automotive environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC888CM8FFI3V3ACFXUMA1, the XC886 variant trades CORDIC and Flash capacity for lower cost in simpler nodes, while the TC1766 offers architectural headroom at significantly higher BOM and thermal complexity - making the XC888 optimal for mid-tier automotive controllers balancing integration, determinism, and cost.

Availability

XC888CM8FFI3V3ACFXUMA1 is available at Aetrix Electronics and suitable for automotive body electronics, smart actuator control, engine bay sensor aggregation, and industrial CAN node development requiring stable component supply across long production lifecycles.

Supply support for XC888CM8FFI3V3ACFXUMA1 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 manufacturing and R&D infrastructure.

This device belongs to the XC800 family - designed specifically for cost-effective, high-reliability automotive microcontroller applications demanding integrated analog peripherals, CAN/LIN connectivity, and extended temperature operation.

FAQ

Does XC888CM8FFI3V3ACFXUMA1 support JTAG debugging?

Yes, it includes full on-chip debug support via IEEE 1149.1-compliant JTAG interface with OCDS (On-Chip Debug Support) module. The JTAG ID register is accessible at address 0xF000, enabling boundary scan, breakpoint setting, and real-time register inspection during development and validation.

What is the maximum ADC sampling rate and how is it configured?

The 10-bit ADC achieves up to 1 MSPS using the internal RC oscillator or external clock source routed through the ADCCLK divider. Sampling rate is set via ADCMOD register's ADCS bits (division factor 1–128); conversion time ranges from 13 to 165 clock cycles depending on resolution and clock source.

How does the embedded voltage regulator affect system power design?

The internal 2.5 V LDO draws from VDDIO (3.3 V) and supplies core logic only; it requires 100 nF + 10 µF local decoupling. This eliminates external core regulators but mandates careful PCB layout to isolate VDDCORE noise from analog sections like ADC and oscillator circuits.

Is the MultiCAN module compatible with ISO 11898-1:2015?

Yes - the MultiCAN module complies with CAN 2.0B specification (ISO 11898-1:2003), supporting bit rates up to 1 Mbps and dominant/recessive bit timing per standard. While not certified to the 2015 revision, its electrical behavior and protocol handling meet functional equivalence for automotive OEM implementations.