Infineon Technologies MB90F549GSPF-G

Overview

MB90F549GSPF-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 features an on-chip PLL supporting 16 MHz system clock (62.5 ns min instruction time), 8/10-bit 8-channel ADC (26.3 µs conversion), and operates from −40 °C to +105 °C for automotive powertrain and body control modules.

For engineers reviewing the MB90F549GSPF-G datasheet, MB90F549GSPF-G pinout, MB90F549GSPF-G application, or MB90F549GSPF-G equivalent, key selection criteria include CAN channel count, Flash size, operating temperature grade, external bus interface support, and dual-clock system configuration for real-time deterministic response in safety-critical ECUs.

Technical Context

The MB90F549GSPF-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 delayed-interrupt generation for task scheduling.

Dual FULL-CAN controllers provide independent message buffering (16 mailboxes total), automatic retransmission, remote frame handling, and flexible acceptance filtering (full-bit compare/mask). The peripheral set includes four 8/16-bit PPG timers, two 16-bit reload timers, one 16-bit free-run timer, eight input capture channels, and four output compare channels - all synchronized to the same system clock domain.

Key Specifications

Pinout & Package

LQFP-100 package with 0.5 mm lead pitch, 14 mm × 14 mm body, and exposed thermal pad (per PQH100/LQI100 mechanical drawings). Pin functions validated per Document Number 002-07696 Rev. *B, Pages 7–8.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MB90F548GSPF-G and MB90F546GSPF-G, the MB90F549GSPF-G uniquely delivers both 256 KB Flash and dual CAN in one device - essential for ASIL-B systems requiring fault containment zones and independent communication paths.

Availability

MB90F549GSPF-G is available at Aetrix Electronics and suitable for automotive powertrain control, body electronics, transmission management, and industrial motion control requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MB90F549GSPF-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 programmable systems-on-chip for automotive, industrial, and IoT applications.

The MB90540G/545G series was engineered specifically for automotive electronic control units requiring integrated FULL-CAN, Flash-based field-upgradability, and AEC-Q100 Grade 2 qualification - targeting powertrain, chassis, and body domain controllers.

FAQ

What is the maximum CAN bit rate supported by MB90F549GSPF-G?

The MB90F549GSPF-G's FULL-CAN controllers support up to 1 Mbps per channel, compliant with ISO 11898-2. This is achieved using the internal PLL-derived system clock and configurable bit timing registers. No external CAN transceiver is included - a discrete transceiver (e.g., TJA1042) must be used on the physical layer.

Does MB90F549GSPF-G support in-application programming (IAP) of Flash memory?

Yes - the device includes embedded Flash algorithm commands (Write, Erase, Erase-Suspend, Resume) with hardware completion flags. IAP is enabled via dedicated command registers and protected by block-level voltage-based write protection, allowing secure firmware updates during runtime without halting system operation.

How many independent clock domains does MB90F549GSPF-G implement?

The MB90F549GSPF-G implements two independent clock domains: a main system clock (PLL-multiplied from X0A/X1A, up to 16 MHz) and a 32 kHz sub-clock domain for low-power peripherals like the watchdog timer and real-time clock functions. These domains operate concurrently and can be gated independently to minimize power consumption.

Is the MB90F549GSPF-G pin-compatible with other members of the MB90540G series?

Yes - all MB90540G/545G series devices in LQFP-100 (e.g., MB90F543GSPF-G, MB90F548GSPF-G) share identical pin assignments and electrical characteristics. However, functional differences (e.g., Flash size, CAN channel count, RAM) require firmware and board-level validation - especially for peripherals mapped to shared pins like UART or ADC channels.