Infineon Technologies XC8868FFI5VACFXUMA1

Overview

XC8868FFI5VACFXUMA1 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 24 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 internally regulated 2.5 V core supply. It supports LIN, MultiCAN, UART, SSC, 10-bit 8-channel ADC, CCU6, and on-chip debug via JTAG - deployed in automotive body control modules and industrial sensor nodes.

For engineers reviewing the XC8868FFI5VACFXUMA1 datasheet, XC8868FFI5VACFXUMA1 pinout, XC8868FFI5VACFXUMA1 application, or XC8868FFI5VACFXUMA1 equivalent, key selection criteria include its 24 KB Flash + 12 KB ROM hybrid memory architecture, integrated LIN transceiver support, 10-bit ADC with 8-channel multiplexing, and dual-supply I/O flexibility for mixed-voltage system interfacing.

Technical Context

The XC8868FFI5VACFXUMA1 implements a two-clock-per-machine-cycle XC800 core derived from the 8051 ISA, enabling zero-wait-state memory access. It features an embedded voltage regulator generating 2.5 V core supply from a 3.3 V or 5.0 V input, while I/O ports operate independently at either voltage level.

Its peripheral set includes a MultiCAN controller supporting CAN 2.0B protocol, a LIN master/slave-capable UART1 with automatic baud-rate detection, and a 16-bit Capture/Compare Unit 6 (CCU6) optimized for motor control timing. The 10-bit ADC uses a dedicated clock domain and supports configurable conversion sequences across eight analog inputs.

Key Specifications

Pinout & Package

XC8868FFI5VACFXUMA1 is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad, qualified for industrial temperature range (–40 °C to +85 °C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC8868FFI5VACFXUMA1, the XC878CM-16F64L offers greater Flash capacity and CAN FD readiness but lacks factory-programmed Boot ROM, increasing bring-up complexity; the TC1766 delivers superior compute throughput but requires full ecosystem requalification and higher power consumption - making it unsuitable for cost- and power-constrained body control use cases.

Availability

XC8868FFI5VACFXUMA1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, smart lighting systems, and embedded sensor aggregation requiring stable component supply across extended product lifecycles.

Supply support for XC8868FFI5VACFXUMA1 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 MCUs, and security solutions, with global R&D and manufacturing infrastructure.

The XC800 family - including XC886 - was designed specifically for cost-sensitive, high-reliability automotive body electronics and industrial control applications requiring integrated LIN, CAN, and analog peripherals in a single chip.

FAQ

Does XC8868FFI5VACFXUMA1 support CAN FD?

No. XC8868FFI5VACFXUMA1 integrates the MultiCAN module compliant with ISO 11898-1:2003 (CAN 2.0B), supporting up to 1 Mbit/s classical CAN frames only. It lacks the arbitration bit rate switching and extended data length features required for CAN FD. For CAN FD capability, consider Infineon's XC878 or AURIX™ families.

What is the maximum ADC sampling rate achievable?

The ADC achieves up to 100 kSPS maximum conversion rate under optimal conditions: 10-bit resolution, single-channel mode, and minimum acquisition time (1.5 µs). With 8-channel sequential conversion and auto-triggering from CCU6, sustained throughput drops to ~12.5 kSPS per channel due to multiplexer settling and conversion overhead.

Is the Boot ROM pre-programmed and lockable?

Yes. The 12 KB Boot ROM contains Infineon's factory-programmed bootloader and peripheral initialization routines. Its read access can be disabled via the Flash protection mechanism using the password register, preventing unauthorized read-out while allowing secure firmware updates through the bootloader interface.

Can P0 pins be used simultaneously for ADC and CAN functions?

No. P0.0–P0.7 share alternate functions: ADC0–ADC7 and CAN_RX/CAN_TX. When CAN is enabled, P0.0 and P0.1 are hardwired to CAN receive/transmit; those pins cannot concurrently serve as ADC inputs. Designers must allocate ADC channels to unused P0 pins or select alternative ports (e.g., P2.0–P2.7) if CAN and full 8-channel ADC are both required.