Infineon Technologies SAX-XC878L-13FFA 5V AA

Overview

SAX-XC878L-13FFA 5V AA 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 52 KB Flash, 256 B RAM, 3 KB XRAM, and 8-channel 10-bit ADC, operating with 5 V I/O supply and internally regulated 2.5 V core voltage. It targets automotive body control modules requiring LIN, CAN, and PWM timing functions.

For engineers reviewing the SAX-XC878L-13FFA 5V AA datasheet, SAX-XC878L-13FFA 5V AA pinout, SAX-XC878L-13FFA 5V AA application, or SAX-XC878L-13FFA 5V AA equivalent, key selection criteria include its embedded voltage regulator, MultiCAN interface, CCU6 capture/compare unit for motor control, and LIN protocol support - all confirmed in the official Infineon XC87xCLM Data Sheet V1.5 (2011-03).

Technical Context

The XC878L implements a dual-voltage architecture: 5 V I/O ports coexist with a 2.5 V core powered by an on-chip voltage regulator, enabling robust interfacing while minimizing internal power dissipation. Its XC800 CPU delivers 8051 compatibility with accelerated execution via two-clock-per-cycle design and dual data pointers for efficient memory access.

It integrates dedicated peripherals for automotive real-time control: MultiCAN v2.0 controller supporting up to 32 message objects, CCU6 with three 16-bit timers and six PWM outputs, and a LIN 2.1-compliant UART1 with automatic header detection and checksum generation - all accessible without external glue logic.

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, designated as "FFA" in Infineon's ordering code. Pin functions are defined per Section 2.3 and 2.4 of the XC87xCLM Data Sheet V1.5.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SAX-XC878L-13FFA 5V AA, the XC886 offers CAN FD readiness and extended temperature range at higher cost, while the XC866 trades peripheral depth and Flash capacity for lower price - making the XC878 the optimal balance for mid-tier automotive body controllers requiring both LIN and full MultiCAN functionality.

Availability

SAX-XC878L-13FFA 5V AA is available at Aetrix Electronics and suitable for automotive body control modules, motor-driven comfort systems, and distributed LIN/CAN subnodes requiring stable component supply across long production lifecycles.

Supply support for SAX-XC878L-13FFA 5V AA 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.

The XC87x family was designed specifically for cost-sensitive, high-reliability automotive body electronics - emphasizing integrated LIN/CAN, motor control peripherals, and robust single-supply operation in harsh environments.

FAQ

What is the maximum operating frequency of the SAX-XC878L-13FFA 5V AA?

The SAX-XC878L-13FFA 5V AA supports a maximum CPU clock frequency of 26 MHz, achieved via internal PLL multiplication of an external crystal (e.g., 13 MHz input). This is confirmed in Section 4.3.3 (Power-on Reset and PLL Timing) of the XC87xCLM Data Sheet V1.5, where t_PLLLOCK = 100 µs max guarantees stable lock under specified VDD and temperature conditions.

Does this MCU support CAN FD or only classical CAN?

The SAX-XC878L-13FFA 5V AA implements MultiCAN v2.0 compliant with ISO 11898-1:2003, supporting only classical CAN (up to 1 Mbit/s) - not CAN FD. CAN FD capability was introduced in later families such as XC88x. This is explicitly stated in Section 3.21 and Table 3-15 of the XC87xCLM datasheet.

How is the 2.5 V core voltage generated and regulated?

A dedicated on-chip linear voltage regulator generates 2.5 V ±5 % from the 5 V VDDIO supply, as documented in Section 3.6 and Figure 3-11 of the datasheet. No external components are required; regulation accuracy and transient response are characterized across –40°C to +125°C and full load range.

Can the ADC operate concurrently with CCU6 PWM generation?

Yes - the ADC and CCU6 operate on independent clock domains and can run simultaneously without hardware conflict. Section 3.22.2 confirms ADC conversion sequences may be triggered by CCU6 events (e.g., timer match), enabling synchronized sampling of motor current at precise PWM edges.