Infineon Technologies MB90F352SPFM-GS-114E1

Overview

MB90F352SPFM-GS-114E1 from Fujitsu Semiconductor is a 16-bit F2MC-16LX microcontroller with integrated FULL-CAN interface (V2.0 Part A/B), 128 KB Flash ROM, 4 KB RAM, and 15-channel 8/10-bit ADC. It operates at up to 24 MHz (PLL ×6 from 4 MHz crystal), delivers 42 ns instruction execution time, and supports automotive-grade operation from −40 °C to +105 °C in LQFP-64 package. Used in body control modules requiring CAN-based sensor/actuator coordination.

For engineers reviewing the MB90F352SPFM-GS-114E1 datasheet, MB90F352SPFM-GS-114E1 pinout, MB90F352SPFM-GS-114E1 application, or MB90F352SPFM-GS-114E1 equivalent, key selection criteria include CAN message buffer flexibility (16 mailboxes + FIFO mixing), dual-bank Flash security (MB90F352x only), sub-clock independence for watchdog timing, and 16-bit I/O timer with ICU/OCU synchronization across two freerun channels.

Technical Context

This MCU implements Fujitsu's F2MC-16LX core with 24-bit internal addressing, 8-level/34-condition interrupt architecture, and extended intelligent I/O service (EI2OS) supporting up to 16 DMA channels. Its PLL clock multiplier enables selectable machine clocks from ×1 to ×6 of external oscillator input, while independent main/sub clock monitoring ensures robust fail-safe timing.

The FULL-CAN controller integrates automatic retransmission, remote frame response, and flexible acceptance filtering (full-bit compare/mask, dual partial masks). Peripheral integration includes two 16-bit freerun timers (FRT0/FRT1), six 16-bit input capture units (ICU), four 16-bit output compare units (OCU), and dual UARTs with LIN master/slave capability.

Key Specifications

Pinout & Package

MB90F352SPFM-GS-114E1 is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.50 mm pitch, FPT-64P-M24), with 49 general-purpose CMOS I/O ports, dedicated CANH/CANL pins (P20/P21), and dual crystal inputs (X0A/X1A) for main/sub clock operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with RL78/F13 and S12XEP100, MB90F352SPFM-GS-114E1 uniquely combines FULL-CAN mailbox arbitration, sub-clock–independent watchdog, and dual-bank Flash security-making it optimal for ASIL-B–aligned body control nodes requiring zero-interruption firmware updates and deterministic CAN response under voltage fluctuation.

Availability

MB90F352SPFM-GS-114E1 is available at Aetrix Electronics and suitable for automotive body control modules, industrial CAN gateways, and commercial vehicle telematics hubs requiring stable component supply, long-term lifecycle assurance, and AEC-Q100–compatible sourcing.

Supply support for MB90F352SPFM-GS-114E1 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

Fujitsu Semiconductor (now part of Socionext Inc. following 2017 acquisition) is a Japanese semiconductor designer specializing in automotive, industrial, and communications MCUs with emphasis on functional safety and mixed-signal integration.

The MB90350 Series targets automotive and industrial real-time control applications, delivering CAN-centric 16-bit processing with hardware-assisted I/O, robust clock supervision, and Flash security-designed specifically for ECU subsystems needing deterministic timing and field-upgradable firmware.

FAQ

Does MB90F352SPFM-GS-114E1 support CAN FD?

No. This device implements ISO 11898-1 CAN 2.0 Part A/B only, with maximum bit rate of 1 Mbps. It lacks CAN FD framing, CRC extension, and variable data length support. For CAN FD migration paths, Fujitsu's later MB96F series or Socionext's ZG series should be evaluated.

What is the purpose of the S-suffix in MB90F352S?

The "S" suffix denotes absence of external sub-clock pins (X0A/X1A); such variants rely solely on internal 100 kHz CR oscillator for sub-clock operation. MB90F352SPFM-GS-114E1 includes the S-suffix, confirming internal sub-clock use-critical for designs avoiding external crystal loading and simplifying PCB layout.

How does the dual-operation Flash work in practice?

Dual-operation allows simultaneous read from one bank (e.g., Lower Bank executing code) while erasing or programming the other (e.g., Upper Bank storing updated firmware). This enables seamless over-the-air updates without halting real-time control tasks-a requirement for ASIL-B software update compliance.

Is the 15-channel ADC truly simultaneous sampling?

No. The ADC is single-core with multiplexed inputs; channels sample sequentially. However, conversion time per channel is fixed at 3 µs (at 24 MHz), and external trigger inputs allow synchronized start across all 15 channels-enabling phase-aligned sampling for motor current/voltage reconstruction in inverter control.