Infineon Technologies MB90F548GSPMC-GSE1

Overview

MB90F548GSPMC-GSE1 from Cypress Semiconductor is a 16-bit F2MC-16LX microcontroller with dual FULL-CAN interfaces (CAN 2.0A/B), 128 KB Flash ROM, 4 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 mixed-signal integration.

For engineers reviewing the MB90F548GSPMC-GSE1 datasheet, MB90F548GSPMC-GSE1 pinout, MB90F548GSPMC-GSE1 application, or MB90F548GSPMC-GSE1 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 automotive ECU layouts.

Technical Context

The MB90F548GSPMC-GSE1 implements the proprietary F2MC-16LX CPU core with 23 addressing modes, 32-bit accumulator for long-word 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 EI2OS-triggered extended I/O service.

Dual FULL-CAN controllers provide flexible mailbox/FIFO hybrid buffering, automatic retransmission, remote frame response, and 1 Mbps data rate compliance. The peripheral set integrates 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 with synchronous/asynchronous modes up to 2 Mbps.

Key Specifications

Pinout & Package

LQFP-100 package with exposed thermal pad; 100-pin square outline, 0.5 mm lead pitch, and standard JEDEC MO-137AC footprint. Pin functions validated per Cypress Document 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 RH850/F1L and MC9S12XEQ512, MB90F548GSPMC-GSE1 uniquely balances dual classical CAN, Flash flexibility, and cost-effective LQFP-100 packaging for mid-tier automotive ECUs-offering higher CAN channel count than MC9S12XEQ512 and lower gate count than RH850/F1L for simpler real-time control tasks.

Availability

MB90F548GSPMC-GSE1 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 temperature ranges and long production lifecycles.

Supply support for MB90F548GSPMC-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 analog ICs for automotive, industrial, and IoT applications, emphasizing functional safety and long-term supply stability.

The MB90540G/545G series was developed specifically for automotive electronic control units requiring dual CAN communication, Flash-based firmware updates, and mixed-signal integration in harsh environments.

FAQ

What is the maximum CAN bit rate supported by MB90F548GSPMC-GSE1?

The device supports up to 1 Mbps on each of its two FULL-CAN channels, compliant with ISO 11898-1 (CAN 2.0A/B). This rate is achievable with proper bus termination, transceiver selection (e.g., TJA1042), and oscillator stability-verified in Cypress Application Note AN95124 for MB90540G-series CAN timing validation.

Does MB90F548GSPMC-GSE1 support in-system programming of Flash memory?

Yes-it supports full in-system programming via on-chip embedded algorithms for Write, Erase, Erase-Suspend, and Erase-Resume operations. Programming requires external VPP (12.5 V) for block protection, and completion is signaled by a dedicated status flag, enabling field firmware updates without removing the chip from the board.

How many independent clock domains does MB90F548GSPMC-GSE1 operate with?

The microcontroller uses two independent clock domains: a main system clock (up to 16 MHz via PLL ×4 from 4 MHz crystal) and a 32 kHz sub-clock domain for low-power RTC and wake-up timers. These domains are electrically isolated, allowing STOP mode operation where only the 32 kHz oscillator remains active.

What is the function of the MD0, MD1, and MD2 pins on MB90F548GSPMC-GSE1?

MD0–MD2 are mode select pins that configure boot source and memory mapping at reset: MD2:MD0 = 000 selects internal Flash boot; 001 selects external bus boot; 010 enables emulation mode. These pins are sampled only during power-on reset and must be pulled high/low via resistors-no dynamic reconfiguration is possible during runtime.