Infineon Technologies XC886CM8RFA5VAAKZZZA1

Overview

XC886CM8RFA5VAAKZZZA1 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 24 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 LIN communication, MultiCAN, 10-bit 8-channel ADC, and CCU6 for motor control - deployed in automotive body electronics and industrial motor drives.

For engineers reviewing the XC886CM8RFA5VAAKZZZA1 datasheet, XC886CM8RFA5VAAKZZZA1 pinout, XC886CM8RFA5VAAKZZZA1 application, or XC886CM8RFA5VAAKZZZA1 equivalent, key selection considerations include its dual-voltage I/O capability, integrated LIN protocol support, on-chip voltage regulator, flash-based programmability, and CCU6 timer unit for precise PWM generation in brushed/BLDC motor control.

Technical Context

The XC886CM8RFA5VAAKZZZA1 implements a two-cycle-per-instruction XC800 core derived from the 8051 architecture, enabling zero-wait-state execution from on-chip Flash or ROM. Its memory protection strategy includes password-protected Flash sectors and bit-level protection for critical registers, enforced via dedicated SFRs like the Password Register (PWRS).

It features a multi-peripheral integration architecture: a 10-bit SAR ADC with configurable conversion sequence, a 16-bit Capture/Compare Unit 6 (CCU6) supporting center-aligned PWM and dead-time insertion, and a MultiCAN controller compliant with CAN 2.0B supporting up to 64 message objects. The embedded voltage regulator supplies stable 2.5 V to the core while allowing independent 3.3 V or 5.0 V I/O operation.

Key Specifications

Pinout & Package

XC886CM8RFA5VAAKZZZA1 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).

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC886CM8RFA5VAAKZZZA1, the XC878 variant offers expanded memory and precision for complex motor algorithms, while the TC1766 represents a platform shift toward 32-bit real-time control - neither replaces the XC886's optimized balance of LIN integration, CCU6 motor timing, and cost-sensitive 8-bit footprint.

Availability

XC886CM8RFA5VAAKZZZA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, smart power outlets, and industrial sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for XC886CM8RFA5VAAKZZZA1 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 - engineered specifically for cost-sensitive, real-time automotive and industrial control applications where integrated LIN, CAN, motor timing, and dual-voltage I/O deliver system-level integration without sacrificing determinism.

FAQ

Does XC886CM8RFA5VAAKZZZA1 support in-system programming via JTAG?

Yes, it supports full on-chip debug and programming via IEEE 1149.1 JTAG interface, including flash erase/write, breakpoint setting, and real-time register inspection. The JTAG ID register (address 0xF000) is documented in Section 3.22.1 of the datasheet, and boundary-scan testing is supported per IEEE 1149.1-2001.

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

The XC800 core operates at up to 26.67 MHz when driven by the internal PLL locked to an external crystal (e.g., 10 MHz XTAL). This yields a 2-cycle instruction throughput of ~13.3 MIPS, confirmed in Section 4.3.4 (On-Chip Oscillator Characteristics) and Table 4-11 (PLL Timing Parameters).

Can the 10-bit ADC operate simultaneously with CCU6 PWM generation?

Yes, the ADC and CCU6 operate independently with separate clocks and trigger sources. Section 3.21.2 confirms ADC conversion can be triggered by CCU6 events (e.g., PWM period match), enabling synchronized current sampling at motor commutation points without CPU intervention.

Is the Boot ROM memory accessible for user code execution?

No - the 12 KB Boot ROM is mapped to fixed address space (0x0000–0x2FFF) and contains only factory-programmed bootloader code. Section 3.2.2 explicitly states it is non-executable by user firmware; execution begins from Flash or external memory after reset vector fetch.