Infineon Technologies XC888CLM8FFA5VACKXUMA1

Overview

XC888CLM8FFA5VACKXUMA1 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 per machine cycle. 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 or 5.0 V) and a 2.5 V core supply generated by an embedded voltage regulator. 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 XC888CLM8FFA5VACKXUMA1 datasheet, XC888CLM8FFA5VACKXUMA1 pinout, XC888CLM8FFA5VACKXUMA1 application, or XC888CLM8FFA5VACKXUMA1 equivalent, key selection considerations include its dual-voltage I/O capability, integrated MultiCAN controller with message objects, 16-bit CCU6 for motor control timing, and boot ROM-based secure startup sequence - all critical for automotive body electronics and industrial motor drive designs.

Technical Context

The XC888CLM8FFA5VACKXUMA1 implements an enhanced 8051-compatible CPU core with two data pointers and no wait states for internal memory access. Its memory protection strategy includes flash lock bits and password-protected write/erase operations, enforced through dedicated SFRs like the Password Register (PWRS).

It features a multi-layer peripheral architecture: the MultiCAN module supports up to 16 message objects with hardware acceptance filtering and FIFO buffering; the CCU6 provides three independent 16-bit timers with capture/compare/PWM output and dead-time generation; and the 10-bit ADC uses a programmable conversion sequence with selectable sample-and-hold timing and result alignment.

Key Specifications

Pinout & Package

This device is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad, qualified for industrial temperature range (–40 °C to +125 °C) and AEC-Q100 Grade 2 compliance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC888CLM8FFA5VACKXUMA1, the XC878CM-8F64L offers more Flash and speed but sacrifices boot ROM security, while the S9S08DZ32F1MLH reduces component count for LIN-only systems but cannot replace CAN-based architectures without redesign.

Availability

XC888CLM8FFA5VACKXUMA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, smart power distribution, and CAN/LIN gateway applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for XC888CLM8FFA5VACKXUMA1 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 semiconductors, automotive MCUs, and security controllers, with global R&D and manufacturing infrastructure.

The XC800 family was designed specifically for cost-sensitive, safety-aware automotive body and chassis applications, emphasizing integration of CAN/LIN, motor control peripherals, and robust flash memory security.

FAQ

What is the maximum operating frequency of the XC888CLM8FFA5VACKXUMA1?

The XC888CLM8FFA5VACKXUMA1 operates at a maximum CPU frequency of 26.7 MHz, derived from an internal PLL that multiplies the external crystal or clock input. This frequency is supported across the full industrial temperature range (–40 °C to +125 °C) and ensures deterministic timing for CAN bit arbitration and CCU6 PWM generation without overclocking.

Does this microcontroller support in-system programming (ISP) via UART?

Yes - the XC888CLM8FFA5VACKXUMA1 supports ISP via UART1 using the on-chip Boot ROM loader, which is activated by asserting the BOOT0 pin during reset. The loader implements a serial protocol compatible with Infineon's DAS tools and accepts Intel HEX files for Flash programming without requiring a debugger or JTAG interface.

How many CAN message objects does the MultiCAN module support?

The MultiCAN module supports exactly 16 message objects, each configurable as transmit or receive with individual identifier masking, acceptance filtering, and dedicated RAM buffers. These objects operate independently with hardware arbitration and automatic retransmission, enabling concurrent handling of multiple CAN IDs without CPU polling overhead.

Is the embedded voltage regulator adjustable or fixed-output?

The embedded voltage regulator delivers a fixed 2.5 V output to the core logic domain and is not user-adjustable. It is internally trimmed and specified to maintain ±3 % regulation over load, temperature, and supply voltage variations, ensuring consistent timing and flash programming voltage stability without external components.