Infineon Technologies MB90F546GSPF-G-FLE1

Overview

MB90F546GSPF-G-FLE1 from Cypress Semiconductor is a 16-bit F2MC-16LX microcontroller with dual FULL-CAN interfaces (CAN V2.0A/B), 256 KB Flash ROM, 8 KB RAM, and 100-pin LQFP package. It operates at up to 16 MHz (PLL ×4), delivers 62.5 ns minimum instruction execution time, and targets automotive body control modules requiring robust real-time communication and deterministic I/O timing.

For engineers reviewing the MB90F546GSPF-G-FLE1 datasheet, MB90F546GSPF-G-FLE1 pinout, MB90F546GSPF-G-FLE1 application, or MB90F546GSPF-G-FLE1 equivalent, key selection criteria include CAN channel count, Flash endurance (10,000 erase cycles), 8/10-bit A/D converter resolution, UART baud rate support up to 2 Mbps, and 16-bit I/O timer input capture capability.

Technical Context

The MB90F546GSPF-G-FLE1 implements the 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 supports 8 priority levels and 34 sources, including delayed-interrupt generation for task switching.

Dual FULL-CAN controllers provide 16 configurable message buffers per channel with mixed mailbox/FIFO buffering, automatic retransmission on error, and acceptance filtering using full-bit compare/mask schemes. The external bus interface supports up to 16 Mbytes address space with 8-/16-bit data width selection.

Key Specifications

Pinout & Package

LQFP-100 package with exposed thermal pad; 100 pins arranged in 25-pin per side quad flat pack. Pin functions validated per Cypress Document 002-07696 Rev. *B, Pages 7–8 (LQI100 top view).

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, the MB90F546GSPF-G-FLE1 uniquely balances dual-CAN redundancy, Flash endurance certification, and deterministic low-latency I/O service-critical for ASIL-B body control without external co-processors.

Availability

MB90F546GSPF-G-FLE1 is available at Aetrix Electronics and suitable for automotive body control units, industrial CAN gateways, and off-road equipment monitors requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MB90F546GSPF-G-FLE1 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.

The MB90540G/545G series was developed specifically for automotive body electronics demanding dual-CAN communication, Flash-based firmware updates, and extended temperature operation without external timing or memory components.

FAQ

What is the maximum CAN bit rate supported by MB90F546GSPF-G-FLE1?

The device supports CAN bit rates up to 1 Mbps per channel, compliant with ISO 11898-1:2003 (CAN V2.0B). This is achieved using internal clock division and programmable bit timing registers, with guaranteed operation across the full −40 °C to +105 °C temperature range and 4.5–5.5 V supply.

Does MB90F546GSPF-G-FLE1 support in-system programming of Flash memory?

Yes. It includes embedded Flash programming algorithms for Write, Erase, Erase-Suspend, and Erase-Resume operations. Programming is initiated via dedicated command registers, with status flags indicating completion or error-no external programmer required for field firmware updates.

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

The LQFP-100 package provides 81 general-purpose I/O ports, all individually configurable as input, output, or peripheral function (e.g., UART, CAN, timer). Each pin supports schmitt-trigger input and push-pull output with programmable drive strength.

Is the 32 kHz sub-clock source integrated or external?

The 32 kHz sub-clock is generated externally using a 32.768 kHz crystal connected to X0A/X1A pins. The device includes dedicated circuitry to condition and distribute this clock for low-power modes (sleep, watch), independent of the main PLL system clock.