Infineon Technologies XC888C8FFA5VACKXUMA1

Overview

XC888C8FFA5VACKXUMA1 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 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 a 2.5 V core supplied by an embedded voltage regulator. It supports automotive-grade LIN communication, MultiCAN 2.0B, and features a 10-bit 8-channel ADC, CCU6 capture/compare unit, and on-chip debug via JTAG.

For engineers reviewing the XC888C8FFA5VACKXUMA1 datasheet, XC888C8FFA5VACKXUMA1 pinout, XC888C8FFA5VACKXUMA1 application, or XC888C8FFA5VACKXUMA1 equivalent, key selection criteria include its LIN-capable UART1, MultiCAN interface, flash-based reprogrammability, 10-bit ADC resolution with 8 input channels, and support for 2.5 V core / 5.0 V I/O mixed-supply operation in automotive body electronics designs.

Technical Context

The XC888C8FFA5VACKXUMA1 implements a two-clock-per-machine-cycle 8051-compatible CPU core with dual data pointers and hardware multiplication/division (MDU) plus CORDIC coprocessor for trigonometric computation acceleration. Its memory architecture separates code (Flash/ROM), boot firmware (12 KB Boot ROM), and data (RAM + XRAM), with configurable memory protection including flash lock bits and password-protected write access.

Peripheral integration includes a 16-bit CCU6 unit for motor control timing, MultiCAN controller supporting up to 16 message objects and CAN FD-ready arbitration, and SSC synchronous serial interface operating as master or slave. Clock generation combines internal RC oscillator (±2% accuracy), external crystal support (1–20 MHz), and PLL for system clock scaling up to 26.67 MHz.

Key Specifications

Pinout & Package

XC888C8FFA5VACKXUMA1 is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined across six bidirectional I/O ports (P0–P5), each supporting multiple alternate functions including UART, SSC, CAN, ADC, and CCU6 signals. Power supply pins include VDDP (I/O supply), VDD (core supply), and VSS ground planes distributed for noise immunity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC888C8FFA5VACKXUMA1, the XC886 variant offers identical peripherals and pinout at lower Flash capacity, while the TC1766 delivers higher performance but lacks integrated LIN support and increases BOM complexity with external transceivers.

Availability

XC888C8FFA5VACKXUMA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, smart lighting nodes, and diagnostic gateway modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for XC888C8FFA5VACKXUMA1 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-sensitive, safety-aware automotive body and convenience applications requiring robust LIN/CAN connectivity and mixed-voltage I/O flexibility.

FAQ

Does XC888C8FFA5VACKXUMA1 support CAN FD?

No, it implements MultiCAN 2.0B only, supporting up to 1 Mbit/s with standard 11-bit identifiers and extended 29-bit identifiers. CAN FD frame format, higher data rates, and flexible data length are not supported in hardware; firmware-level emulation is not feasible due to timing constraints and lack of dedicated FD arbitration logic.

What is the maximum ADC sampling rate achievable?

The 10-bit ADC achieves up to 100 kSPS (10 μs conversion time per sample) when configured for single-channel continuous mode with internal clock source. With 8-channel sequence scanning and auto-triggering from CCU6, effective throughput drops to ~12.5 kSPS per channel due to inter-channel delay and result register read latency.

Can the embedded voltage regulator be bypassed for external core supply?

No - the internal 2.5 V regulator is mandatory and non-bypassable; VDD must be connected to the regulator output pin. The device lacks an external VDDCORE input option. Attempting to force external voltage onto VDD risks damaging the regulator circuitry and violates absolute maximum ratings.

Is JTAG debug supported in all operating modes?

JTAG is fully functional in RUN, IDLE, STOP, and POWER-DOWN modes, enabling breakpoints, register inspection, and flash programming even during low-power states. However, OCDS clock must remain active (via internal RC or external source) - disabling all clocks via STOP mode without preserving OCDS clock will suspend debug access until wake-up event occurs.