Infineon Technologies XC888CM8FFA3V3ACKXUMA1

Overview

XC888CM8FFA3V3ACKXUMA1 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 operation (3.3 V I/O, 2.5 V core via embedded regulator). It supports CAN 2.0B (MultiCAN), LIN, UART, SSC, 10-bit 8-channel ADC, and CCU6 for motor control - deployed in automotive body electronics and industrial motor drives.

For engineers reviewing the XC888CM8FFA3V3ACKXUMA1 datasheet, XC888CM8FFA3V3ACKXUMA1 pinout, XC888CM8FFA3V3ACKXUMA1 application, or XC888CM8FFA3V3ACKXUMA1 equivalent, key selection criteria include its integrated MultiCAN controller, 32 KB Flash with memory protection, 10-bit ADC timing accuracy (max 12.5 µs conversion), and 3.3 V tolerant I/O ports supporting mixed-voltage system interfacing.

Technical Context

The XC888CM8FFA3V3ACKXUMA1 implements a two-cycle-per-instruction XC800 core derived from the 8051 architecture, enabling zero-wait-state execution from on-chip Flash. Its memory subsystem includes separate address spaces for Code (Flash/ROM), XDATA (XRAM), and DATA (RAM), with hardware-assisted memory protection via password-protected flash sectors and bit-level register locking.

It features a multi-protocol communication stack: a full MultiCAN controller supporting 64 message objects and CAN FD-ready timing, a LIN 2.1-compliant interface with automatic baud rate detection, and a synchronous serial controller (SSC) configurable as SPI master/slave. Analog integration includes a 10-bit successive-approximation ADC with programmable sampling time and channel sequencing.

Key Specifications

Pinout & Package

XC888CM8FFA3V3ACKXUMA1 is housed in a 64-pin LQFP package (PG-LQFP-64) with exposed thermal pad, optimized for thermal dissipation in motor control and automotive ECU applications. Pin functions are defined across six bidirectional port groups (P0–P5), each supporting multiple alternate functions including CAN TX/RX, LIN, UART, SSC, ADC inputs, and CCU6 capture/compare outputs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC888CM8FFA3V3ACKXUMA1, the XC886 variant trades Flash capacity for lower unit cost in static-function applications, while the TC1766 offers architectural scalability at the expense of design complexity, power budget, and PCB area - making the XC888 optimal for mid-tier automotive and industrial control where 32 KB Flash, CAN+LIN integration, and thermal robustness are decisive.

Availability

XC888CM8FFA3V3ACKXUMA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, and smart power distribution systems requiring stable component supply across extended product lifecycles.

Supply support for XC888CM8FFA3V3ACKXUMA1 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.

This device belongs to the XC800 family of 8-bit microcontrollers designed specifically for cost-effective, thermally robust automotive and industrial control applications requiring CAN, LIN, and analog integration in a single chip.

FAQ

Does XC888CM8FFA3V3ACKXUMA1 support CAN FD?

No, it implements MultiCAN conforming to ISO 11898-1:2003 (CAN 2.0B), supporting up to 1 Mbit/s classical CAN frames with 11-bit identifiers. It lacks CAN FD's flexible data-rate and extended identifier capabilities, though its timing registers allow precise bit timing configuration for legacy CAN networks.

What is the maximum ADC sampling rate achievable?

The 10-bit ADC achieves a maximum conversion rate of 80 kSPS under optimal conditions: 12.5 µs per conversion with internal clock source, single-channel mode, and no sampling delay. Channel sequencing adds overhead, reducing effective throughput to ~65 kSPS across all 8 channels.

Is the embedded voltage regulator adjustable?

No, the internal LDO is fixed at 2.5 V nominal output for core logic supply. It accepts 3.3 V ±10 % or 5.0 V ±10 % on VDDIO, regulates down to 2.5 V with typical dropout of 200 mV, and cannot be reconfigured or bypassed - ensuring consistent core voltage across operating conditions.

How is flash memory protected against unauthorized access?

Protection is implemented via three mechanisms: (1) Flash sector lock bits preventing erase/write operations, (2) password-protected debug access disabling JTAG readout, and (3) SFR bit-locking that prevents runtime modification of critical control registers - all enforced in hardware without software dependency.