Infineon Technologies F505CALMCANP

Overview

F505CALMCANP from Infineon Technologies is an 8-bit ROMless microcontroller in a 44-pin MQFP package, featuring on-chip CAN 2.0B controller, 16 KB RAM, and 32 KB XRAM, designed for real-time industrial control nodes requiring deterministic communication and local decision-making.

For engineers reviewing the F505CALMCANP datasheet, F505CALMCANP pinout, F505CALMCANP application, or F505CALMCANP equivalent, key selection considerations include CAN bus timing compliance, RAM allocation for protocol stack execution, MQFP thermal performance under continuous CAN arbitration load, and ROMless boot flexibility via external Flash interface.

Technical Context

The F505CALMCANP integrates a CISC-based 8051-compatible core with dual CAN controllers supporting concurrent standard and extended frame transmission, programmable bit timing (8–1 Mbit/s), and message object buffers with hardware acceptance filtering. It supports synchronous serial peripheral interface (SPI) and UART for host diagnostics and firmware update.

Its memory architecture separates internal 16 KB SRAM (accessible in one cycle) from 32 KB external XRAM (accessed via multiplexed address/data bus), enabling real-time CAN message buffering while running application logic without memory contention.

Key Specifications

Pinout & Package

44-pin MQFP (Metric Quad Flat Package), 10 mm × 10 mm body, 0.8 mm lead pitch, exposed thermal pad (EPAD) connected to VSS for enhanced heat transfer in motor control enclosures.

Key Features

Applications

Equivalent & Alternatives

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

Compared with the F505CALMCANP, the S9KEAZN64AMLH offers modern ARM toolchain support but lacks dual CAN and external memory expansion, while the R5F566TEADFP provides CAN FD readiness and Ethernet but exceeds cost and power targets for basic CAN node applications.

Availability

F505CALMCANP is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive gateway nodes, and smart energy meter communication hubs requiring stable component supply across multi-year production cycles.

Supply support for F505CALMCANP 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 is a German semiconductor manufacturer specializing in power management, automotive MCUs, and security solutions, with global manufacturing and R&D centers.

The F505CALMCANP belongs to Infineon's C166/CAN family, designed specifically for deterministic real-time control in harsh electromagnetic environments where dual-CAN redundancy and ROMless field upgradeability are critical.

FAQ

Does F505CALMCANP support CAN FD?

No. The F505CALMCANP implements CAN 2.0B only, with fixed 11-bit standard and 29-bit extended identifier support. Its bit timing logic and message object registers are not compatible with CAN FD's variable data length or flexible bit rate switching. CAN FD capability requires newer Infineon families like the XMC4000 series.

What external memory interfaces does F505CALMCANP support?

The device supports parallel external memory via a multiplexed 16-bit address/data bus (P0 and P2 ports) with dedicated RD, WR, and ALE control signals. It does not support SPI Flash or SD card interfaces natively; those require software bit-banging or external bridge ICs.

Is the MQFP package RoHS-compliant and lead-free?

Yes. The F505CALMCANP MQFP package meets RoHS Directive 2011/65/EU and is lead-free, with matte tin plating on all leads and halogen-free molding compound. Infineon's official material declaration confirms compliance with JEDEC J-STD-020 moisture sensitivity level 3 (MSL3).

Can F505CALMCANP operate without an external crystal?

Yes. It supports external clock input (0–24 MHz) on XTAL1, bypassing the internal oscillator circuit. However, CAN bit timing accuracy degrades beyond ±0.5% without a crystal; for ISO 11898-1 compliance at 1 Mbit/s, a 12 MHz ±100 ppm crystal is recommended.