Infineon Technologies XC878LM16FFA5VACKXUMA1

Overview

XC878LM16FFA5VACKXUMA1 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 at two clocks per machine cycle. It integrates 16 KB Flash memory, 256 bytes RAM, 3 KB XRAM, a 10-bit 8-channel ADC, dual UARTs (UART/UART1), MultiCAN interface, CCU6 timer unit, and on-chip debug support via JTAG. It operates with 5 V I/O supply and internal 2.5 V core regulation, targeting automotive body electronics and industrial control.

For engineers reviewing the XC878LM16FFA5VACKXUMA1 datasheet, XC878LM16FFA5VACKXUMA1 pinout, XC878LM16FFA5VACKXUMA1 application, or XC878LM16FFA5VACKXUMA1 equivalent, key selection criteria include its 16 KB Flash size, 5 V-tolerant I/O ports, integrated MultiCAN controller, and embedded voltage regulator enabling single-supply operation in harsh environments.

Technical Context

The XC878LM16FFA5VACKXUMA1 implements the XC800 architecture with dual data pointers and no wait-state memory access, enabling deterministic real-time execution. Its clock generation supports external crystal (1–20 MHz) or RC oscillator, with PLL for internal high-speed system clock up to 26.67 MHz.

It features a dedicated MultiCAN module compliant with CAN 2.0B protocol, supporting up to 64 message objects and hardware-based message filtering. The CCU6 unit provides six PWM channels with dead-time insertion and emergency shutdown-critical for motor control timing precision.

Key Specifications

Pinout & Package

XC878LM16FFA5VACKXUMA1 is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined per Infineon's datasheet revision V1.5 (2011-03), including dedicated CANH/CANL differential pins, multiple 5 V-tolerant I/O groups, and separate analog/digital ground connections.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SAF-XC886LM-16FRA5VAC, XC878LM16FFA5VACKXUMA1 offers lower system BOM cost due to integrated 2.5 V regulator and mature toolchain support, while SPC560B50L5 trades simplicity for scalability in safety-critical domains.

Availability

XC878LM16FFA5VACKXUMA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, smart lighting systems, and engine subsystems requiring stable component supply across extended product lifecycles.

Supply support for XC878LM16FFA5VACKXUMA1 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 XC87xCLM family of 8-bit automotive microcontrollers designed specifically for cost-sensitive, high-reliability body electronics and powertrain ancillary control applications.

FAQ

What is the maximum operating frequency of the XC878LM16FFA5VACKXUMA1?

The device supports a maximum system clock frequency of 26.67 MHz, achieved using the internal PLL with an external crystal up to 20 MHz. This frequency is fully validated across the −40 °C to +125 °C temperature range and meets AEC-Q100 Grade 2 specifications for automotive use.

Does XC878LM16FFA5VACKXUMA1 support in-system programming (ISP)?

Yes, it supports ISP via UART using the on-chip bootloader located in protected Boot ROM. Programming requires a valid unlock sequence and adheres to Infineon's Flash programming algorithm documented in Application Note AP32167, with no external high-voltage programmer needed.

How is the CAN interface electrically implemented on this MCU?

The MCU provides dedicated CANH and CANL pins (P3.4/P3.5) compliant with ISO 11898-2 physical layer signaling. An external CAN transceiver (e.g., TJA1042) must be used to drive the bus; the MCU handles protocol processing, message filtering, and error handling in hardware.

Is the 10-bit ADC capable of simultaneous sampling across all 8 channels?

No, the ADC performs sequential conversion with configurable scan mode. While it supports automatic channel sequencing and trigger sources (e.g., CCU6, timer), true simultaneous sampling requires external analog front-end hardware; the internal sample-and-hold operates per-channel.