Infineon Technologies MB90F549PF-G

Overview

MB90F549PF-G from Cypress Semiconductor is a 16-bit F2MC-16LX microcontroller with dual FULL-CAN interfaces (CAN 2.0A/B), 256 KB Flash ROM, 6 KB RAM, and 100-pin LQFP package. It operates at up to 16 MHz (62.5 ns min instruction time), supports 8/10-bit A/D conversion across 8 channels (26.3 µs per conversion), and targets automotive body control modules requiring robust real-time communication and deterministic I/O timing.

For engineers reviewing the MB90F549PF-G datasheet, MB90F549PF-G pinout, MB90F549PF-G application, or MB90F549PF-G equivalent, key selection criteria include CAN channel count, Flash memory size, A/D resolution and speed, interrupt latency (8-level, 34-source), and support for external bus expansion up to 16 Mbytes in automotive ECU designs.

Technical Context

The MB90F549PF-G implements the proprietary F2MC-16LX CPU core with 32-bit accumulator, 23 addressing modes, and enhanced C-language support including system stack pointer and barrel shift instructions. Its dual CAN controllers feature flexible mailbox/FIFO buffering, automatic retransmission, and 1 Mbps data rate compliance with ISO 11898-1.

Peripheral integration includes four 8/16-bit PPG timers, eight 16-bit input capture channels, four 16-bit output compare units, two 16-bit reload timers, and dual UARTs (UART0/SCI) with synchronous/asynchronous modes supporting baud rates up to 2 Mbps - all synchronized to the programmable PLL-derived system clock (×1–×4 or ÷2).

Key Specifications

Pinout & Package

LQFP-100 (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad; 100-pin surface-mount package optimized for automotive PCB thermal management and EMI resilience.

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 TC1766, the MB90F549PF-G delivers optimal balance of dual CAN 2.0B compatibility, 256 KB Flash density, and 5 V robustness for cost-sensitive, non-safety-critical automotive modules without requiring CAN FD or lockstep redundancy.

Availability

MB90F549PF-G is available at Aetrix Electronics and suitable for automotive body electronics, industrial CAN gateways, and embedded control systems requiring stable component supply, long-term lifecycle support, and automotive-grade temperature range (−40 °C to +105 °C).

Supply support for MB90F549PF-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 mixed-signal ICs for automotive, industrial, and IoT applications, emphasizing functional safety and long-lifecycle support.

The MB90540G/545G series was developed specifically for automotive electronic control units requiring dual CAN 2.0B interfaces, Flash-based field-upgradable firmware, and deterministic real-time peripheral control in harsh environments.

FAQ

What is the maximum CAN bit rate supported by the MB90F549PF-G?

The MB90F549PF-G supports CAN bit rates up to 1 Mbps, compliant with ISO 11898-1 (CAN 2.0B). This is achieved through its dual FULL-CAN controllers with programmable bit timing registers and automatic retransmission logic, enabling reliable communication in high-noise automotive networks such as chassis and body domains.

Does the MB90F549PF-G support in-system programming of Flash memory?

Yes - the MB90F549PF-G supports full in-system programming via its embedded Flash algorithm, including Write, Erase, Erase-Suspend, and Erase-Resume commands. A dedicated completion flag and boot block configuration allow safe field updates without external programmers, and block-level protection prevents accidental overwrite of critical firmware sections.

How many general-purpose I/O pins does the MB90F549PF-G provide?

The MB90F549PF-G provides 81 general-purpose I/O pins, all configurable as input/output or peripheral function (e.g., UART, CAN, A/D, timer). Each pin features schmitt-trigger inputs and push-pull outputs, with bit-wise programmability and support for external interrupt triggering on rising/falling/both edges - essential for flexible sensor and actuator interfacing.

What low-power modes are available and how do they differ?

The MB90F549PF-G offers five low-power modes: Sleep (CPU clock stopped, peripherals active), Stop (oscillator halted), CPU Intermittent Operation (clock gated per instruction), Watch (32 kHz sub-clock active), and Hardware Stand-by (minimal current draw with wake-on-interrupt). Each mode provides distinct trade-offs between wakeup latency, peripheral availability, and current consumption - critical for battery-powered automotive modules.