Infineon Technologies MB90F543GSPF-GSE1

Overview

MB90F543GSPF-GSE1 from Cypress Semiconductor is a 16-bit F2MC-16LX microcontroller with dual FULL-CAN interfaces (CAN 2.0A/B), 128 KB Flash ROM, 6 KB RAM, and 100-pin LQFP package. It operates at up to 16 MHz system clock (via on-chip PLL ×4), delivers 62.5 ns minimum instruction execution time, and targets automotive body control modules requiring robust real-time CAN communication and mixed-signal peripheral integration.

For engineers reviewing the MB90F543GSPF-GSE1 datasheet, MB90F543GSPF-GSE1 pinout, MB90F543GSPF-GSE1 application, or MB90F543GSPF-GSE1 equivalent, key selection criteria include dual-CAN timing compliance, Flash programmability in-system, 8/10-bit A/D conversion with 26.3 µs per channel, and support for external bus expansion up to 16 Mbytes.

Technical Context

The MB90F543GSPF-GSE1 implements the proprietary 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 supports 8 priority levels and 34 sources, including delayed-interrupt generation for task switching.

Dual FULL-CAN controllers operate independently at up to 1 Mbps, each supporting flexible mailbox/FIFO message buffering, automatic retransmission, and acceptance filtering with full-bit compare/mask options. The peripheral set includes four 8/16-bit PPG timers, eight input capture channels, four output compare channels, and dual UARTs with synchronous/asynchronous modes and baud rates up to 2 Mbps.

Key Specifications

Pinout & Package

LQFP-100 package with exposed thermal pad; 100 pins arranged in 25-pin per side quad flat pack, RoHS-compliant, rated for −40 °C to +105 °C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with RH850/F1L and S32K144, the MB90F543GSPF-GSE1 provides deterministic 16-bit real-time control with external bus expansion and legacy software compatibility, making it optimal for cost-sensitive, non-safety-critical automotive body electronics where CAN 2.0B suffices.

Availability

MB90F543GSPF-GSE1 is available at Aetrix Electronics and suitable for automotive body control units, industrial CAN gateways, and off-highway telematics systems requiring stable component supply across extended temperature ranges (−40 °C to +105 °C) and long product lifecycles.

Supply support for MB90F543GSPF-GSE1 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 consumer applications.

The MB90540G/545G series was developed specifically for automotive body electronics requiring dual-CAN 2.0B communication, Flash-based field-upgradability, and integrated mixed-signal peripherals - all within a single 100-pin LQFP package.

FAQ

What is the maximum CAN bit rate supported by MB90F543GSPF-GSE1?

The MB90F543GSPF-GSE1 supports CAN bit rates up to 1 Mbps per channel, fully compliant with ISO 11898-1:2003 (CAN 2.0A/B). This is achieved using the on-chip CAN controllers' programmable bit timing registers and synchronized sampling logic, validated across the full −40 °C to +105 °C operating range.

Does MB90F543GSPF-GSE1 support in-system programming of Flash memory?

Yes - the device supports full in-system programming via its embedded Flash algorithm, including Write, Erase, Erase-Suspend, and Erase-Resume commands. A completion flag and block protection controlled by external VPP voltage ensure safe field updates without external programmers.

How many general-purpose I/O pins are available on the LQFP-100 package?

The MB90F543GSPF-GSE1 provides 81 general-purpose I/O ports, all individually configurable as input, output, or peripheral function. Pin multiplexing is managed through dedicated control registers, and all outputs are push-pull with schmitt-trigger inputs for noise immunity in automotive environments.

Is an external crystal required for CAN timing accuracy?

No - the on-chip PLL generates the precise system clock needed for CAN bit timing. A 4 MHz crystal on X0A/X1A yields a stable 16 MHz machine clock (PLL ×4), meeting CAN 1 Mbps timing jitter requirements (<±1% deviation) without external clock synthesis components.