Infineon Technologies SAF-XC878-13FFI 5V AA

Overview

SAF-XC878-13FFI 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 a 10-bit 8-channel ADC. The device features MultiCAN, UART/UART1, SSC, CCU6, and on-chip debug support via JTAG, targeting automotive body electronics and industrial control applications.

For engineers reviewing the SAF-XC878-13FFI 5V AA datasheet, SAF-XC878-13FFI 5V AA pinout, SAF-XC878-13FFI 5V AA application, or SAF-XC878-13FFI 5V AA equivalent, key selection considerations include its 52 KB Flash memory protection scheme, dual supply architecture (5 V I/O / 2.5 V core), integrated MultiCAN controller, and LIN protocol support for automotive networked subsystems.

Technical Context

The SAF-XC878-13FFI implements the XC800 core - a superset of the 8051 ISA with two data pointers and no wait states for internal memory access. Its clock generation unit supports external crystal (1–20 MHz), RC oscillator, or PLL-derived system clocks up to 26.67 MHz.

Memory organization includes boot ROM (8 KB), Flash (52 KB with bank pagination and password-protected write/erase), XRAM (3 KB), and RAM (256 B). Peripheral integration includes a 16-bit CCU6 for motor control PWM, Timer 21 for high-resolution capture, and MultiCAN supporting up to 16 message objects with hardware filtering.

Key Specifications

Pinout & Package

SAF-XC878-13FFI 5V AA is housed in a 64-pin LQFP package (10 × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are defined across eight I/O ports (P0–P5, P7, P8), each configurable as digital input/output or peripheral multiplexed signals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SAF-XC878-13FFI 5V AA, the XC886 offers greater Flash and thermal margin for evolving automotive platforms, while the SPC560B50L5 provides safety-certified 32-bit performance at the cost of architecture discontinuity and significantly higher BOM complexity.

Availability

SAF-XC878-13FFI 5V AA is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, smart power outlets, and sensor aggregation systems requiring stable component supply across long production lifecycles.

Supply support for SAF-XC878-13FFI 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 XC87xCLM product line was designed specifically for cost-sensitive, high-reliability automotive body electronics and industrial control applications requiring robust 8-bit performance, integrated CAN/LIN, and long-term supply stability.

FAQ

What is the maximum operating frequency of the SAF-XC878-13FFI 5V AA?

The SAF-XC878-13FFI 5V AA achieves a maximum system clock frequency of 26.67 MHz using its internal PLL, which multiplies a 1–20 MHz external crystal or oscillator input. This corresponds to 13.33 MIPS at two clocks per instruction cycle, enabling deterministic real-time response in motor control and communication stacks.

Does this microcontroller support CAN FD?

No - the SAF-XC878-13FFI 5V AA integrates a classical MultiCAN controller compliant with CAN 2.0A/B only. It does not support CAN FD data rates, frame formats, or protocol enhancements. For CAN FD, Infineon's XC886 or 32-bit AURIX families are required.

How is Flash memory protected against unauthorized access or corruption?

Flash protection uses a three-tier scheme: (1) password register lock preventing write/erase without correct 32-bit key, (2) sector-level write protection bits, and (3) boot ROM-locked vector table overwrite prevention. These mechanisms are documented in Section 3.2.1 of the datasheet and enforced in hardware.

Can the internal voltage regulator power external circuitry?

No - the embedded 2.5 V regulator supplies only the core logic and internal peripherals. It is not rated for external load driving. External circuits must be powered separately; the VDDIO pins (5 V) may power external 5 V peripherals, but VDDCORE is strictly for internal use and must not be loaded.