Infineon Technologies SAF-XC878-16FFI 3V3 AC

Overview

SAF-XC878-16FFI 3V3 AC 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 52 KB Flash, 3 KB XRAM, 256 B RAM, and 8 KB Boot ROM, with dual-voltage operation (3.3 V I/O, 2.5 V core via embedded regulator), and targets automotive body control modules requiring LIN/CAN communication and analog sensing.

For engineers reviewing the SAF-XC878-16FFI 3V3 AC datasheet, SAF-XC878-16FFI 3V3 AC pinout, SAF-XC878-16FFI 3V3 AC application, or SAF-XC878-16FFI 3V3 AC equivalent, key selection criteria include its 52 KB protected Flash memory, integrated MultiCAN and LIN protocol support, 10-bit 8-channel ADC, CCU6 timer for motor control, and JTAG-based on-chip debug capability.

Technical Context

The SAF-XC878-16FFI 3V3 AC implements a two-clock-per-machine-cycle XC800 core derived from the 8051 architecture, enabling zero-wait-state memory access. It features an embedded voltage regulator generating 2.5 V core supply from a 3.3 V I/O rail, supporting mixed-signal operation without external LDOs.

Its peripheral set includes a 16-bit CCU6 capture/compare unit for PWM generation, MultiCAN controller with message objects, LIN 2.1-compliant UART1, and a 10-bit ADC with configurable conversion sequence and hardware trigger linkage to timers - all synchronized to a flexible clock tree with PLL and multiple prescalers.

Key Specifications

Pinout & Package

SAF-XC878-16FFI 3V3 AC is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad, qualified for automotive 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 SAF-XC878-16FFI 3V3 AC, the XC886 offers incremental Flash and CAN FD readiness in a drop-in package, while the SPC560B50L5 represents a platform-level shift toward 32-bit safety-aware control - neither replaces the XC878's cost-optimized 8-bit LIN/CAN balance in established body electronics designs.

Availability

SAF-XC878-16FFI 3V3 AC is available at Aetrix Electronics and suitable for automotive body control modules, LIN-based sensor nodes, motor driver interfaces, and industrial CAN networks requiring stable component supply over extended production lifecycles.

Supply support for SAF-XC878-16FFI 3V3 AC 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 applications requiring integrated LIN, CAN, and analog peripherals in a compact 8-bit platform.

FAQ

What is the maximum operating frequency of the SAF-XC878-16FFI 3V3 AC?

The SAF-XC878-16FFI 3V3 AC operates at a maximum CPU frequency of 26.7 MHz, achieved using its internal PLL with external crystal input up to 20 MHz. This frequency is sustained across the full automotive temperature range (–40 °C to +125 °C) and supply voltage (3.3 V ±5 %), with timing validated per Section 4.3 of the datasheet.

Does this microcontroller support CAN FD?

No, the SAF-XC878-16FFI 3V3 AC integrates a legacy MultiCAN 2.0B controller compliant with ISO 11898-1:2003, supporting only classical CAN frames (up to 8-byte payloads). CAN FD capability is introduced in later XC88x derivatives and is not electrically or firmware-compatible with this device.

How is flash memory protected against unauthorized access or overwrite?

Flash protection uses a three-tier hardware scheme: sector lock bits prevent erase/write, a password register (PW) must be written before modifying protection registers, and boot ROM executes secure startup checks. These mechanisms are documented in Sections 3.2.1 and 3.2.3 of the datasheet and operate independently of software execution state.

Can the embedded voltage regulator power external circuitry?

No, the embedded 2.5 V regulator supplies only the internal core logic and is not rated for external loading. Its output (VDDC) is internally routed and lacks external pin access or current specification for off-chip use; external circuits must be powered separately from the 3.3 V I/O rail or dedicated regulators.