Infineon Technologies MB90F549GPF-G

Overview

MB90F549GPF-G from Cypress Semiconductor is a 16-bit F2MC-16LX microcontroller with dual FULL-CAN interfaces (CAN V2.0A/B), 256 KB Flash ROM, 6 KB RAM, and 81 general-purpose I/O ports. It operates at up to 16 MHz system clock (via on-chip PLL ×4), achieves 62.5 ns minimum instruction execution time, and targets automotive body control modules requiring robust real-time communication and deterministic interrupt handling.

For engineers reviewing the MB90F549GPF-G datasheet, MB90F549GPF-G pinout, MB90F549GPF-G application, or MB90F549GPF-G equivalent, key selection criteria include dual CAN channel support, Flash programmability with block protection, 8/10-bit 8-channel ADC with 26.3 µs conversion, and QFP-100 package compatibility for ECU-level integration.

Technical Context

The MB90F549GPF-G implements the F2MC-16LX CPU core with 23 addressing modes, 32-bit accumulator for extended precision arithmetic, and enhanced C-language support via system stack pointer and barrel shift instructions. Its interrupt subsystem delivers 8 priority levels and 34 interrupt sources, including dedicated EI2OS for intelligent I/O service offloading.

Dual FULL-CAN controllers provide flexible mailbox/FIFO message buffering, automatic retransmission, remote frame response, and acceptance filtering with full-bit compare/mask options. The external bus interface supports up to 16 Mbytes address space with selectable 8-/16-bit data width, enabling expansion for memory-mapped peripherals or external flash.

Key Specifications

Pinout & Package

LQFP-100 package with exposed pad omitted; 100-pin square outline, 0.5 mm lead pitch, JEDEC MS-026AC standard footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.

Compared with RH850/F1L and SPC560P50L5, the MB90F549GPF-G offers superior cost-efficiency for non-safety-critical body electronics, retains full software compatibility within the F2MC-16LX ecosystem, and provides proven Flash reliability for long-life industrial deployments.

Availability

MB90F549GPF-G is available at Aetrix Electronics and suitable for automotive body control modules, industrial CAN gateways, off-highway telematics units, and commercial vehicle diagnostic interfaces requiring stable component supply across extended product lifecycles.

Supply support for MB90F549GPF-G 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

Cypress Semiconductor (now part of Infineon Technologies) designs high-reliability microcontrollers and analog ICs for automotive, industrial, and IoT applications, with emphasis on functional safety and long-term supply stability.

The MB90540G/545G series was engineered specifically for automotive body electronics and industrial control nodes needing dual CAN 2.0B, Flash-based field-upgradable firmware, and deterministic real-time performance under extended temperature ranges.

FAQ

What is the maximum operating frequency and corresponding instruction execution time for MB90F549GPF-G?

The MB90F549GPF-G achieves a maximum system clock of 16 MHz using its on-chip PLL ×4 multiplier with a 4 MHz crystal. At this frequency, the minimum instruction execution time is 62.5 ns. This timing is guaranteed across the full operating voltage range (4.5–5.5 V) and temperature range (−40 °C to +105 °C), as verified in the electrical characteristics table on page 37 of datasheet 002-07696 Rev. *B.

Does MB90F549GPF-G support CAN FD or only classical CAN 2.0?

The MB90F549GPF-G supports only classical CAN 2.0A and 2.0B protocols-not CAN FD. Its dual FULL-CAN controllers comply strictly with ISO 11898-1:2003, offering message rates up to 1 Mbps with flexible mailbox/FIFO buffering, but lack the variable bit rate, extended data length, or CRC enhancements defined in CAN FD (ISO 11898-1:2015). This is explicitly stated in the "FULL-CAN interfaces" section on page 2 of the datasheet.

How is Flash memory protected against unintended writes or erases?

Flash protection on MB90F549GPF-G uses external programming voltage (Vpp) applied to the MD0–MD2 pins during write/erase operations. Without Vpp, all Flash commands are ignored. Additionally, each block can be individually locked/unlocked via software-controlled lock bits, and a hardware reset vector points to a fixed boot sector that remains immune to accidental erase. These mechanisms are detailed in the "Flash Memory" feature list on page 5.

Can MB90F549GPF-G operate from a single 3.3 V supply?

No-MB90F549GPF-G requires a 4.5 V to 5.5 V supply, as specified in the "Operating Voltage Range" table on page 6 of the datasheet. It is not compatible with 3.3 V logic families or supplies. The device uses 5 V-tolerant I/O and relies on 5 V for stable PLL operation and Flash programming voltage margins; attempting 3.3 V operation will result in undefined behavior or failure to execute instructions.