Infineon Technologies MB90F352PFM-GE1

Overview

MB90F352PFM-GE1 from Fujitsu Semiconductor is a 16-bit F2MC-16LX microcontroller with on-chip 128 KB Flash ROM, single-channel FULL-CAN interface (CAN 2.0A/B compliant), 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 +125 °C in LQFP-64 package. Used in engine control units and body electronics requiring CAN-based real-time communication.

For engineers reviewing the MB90F352PFM-GE1 datasheet, MB90F352PFM-GE1 pinout, MB90F352PFM-GE1 application, or MB90F352PFM-GE1 equivalent, key selection criteria include its dual-bank flash security, flexible message buffering (16 mailboxes + FIFO mix), sub-clock-independent clock monitor, 2× 16-bit freerun timers, and LIN-capable dual UARTs - all validated for AEC-Q100-relevant automotive subsystems.

Technical Context

The MB90F352PFM-GE1 implements the F2MC-16LX CPU core with 24-bit internal addressing and 16 MB memory space, executing instructions via 4-byte queue and supporting 23 addressing modes. Its PLL generates machine clocks from ×1 to ×6 of external oscillation (4 MHz typical), enabling 42 ns min instruction cycle while maintaining sub-clock (100 kHz CR oscillator) operation for watchdog and wake-up functions.

Peripheral integration includes one FULL-CAN controller with automatic retransmission, error handling, and 1 Mbps capability; two full-duplex UARTs with LIN master/slave support; one I²C interface (400 kbps); six 16-bit input capture channels; four 16-bit output compare channels; and two independent 16-bit freerun timers mapped to ICU/OCU resources.

Key Specifications

Pinout & Package

MB90F352PFM-GE1 is housed in a 64-pin LQFP package (10 mm × 10 mm, 0.50 mm pitch, FPT-64P-M24), with pins assigned for CANH/CANL differential signaling, dual UART TX/RX, 15 ADC inputs, 49 general-purpose CMOS I/O ports, X0A/X1A sub-clock oscillator inputs, and dedicated reset, clock, and power supply terminals.

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, MB90F352PFM-GE1 uniquely combines CAN+LIN dual-protocol support, dual-bank secure Flash, and independent clock monitoring - critical for ASIL-B–aligned subsystems where firmware integrity and fail-safe timing supervision are design requirements.

Availability

MB90F352PFM-GE1 is available at Aetrix Electronics and suitable for engine control units, body control modules, and industrial CAN gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MB90F352PFM-GE1 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. since 2017) is a Japanese semiconductor designer specializing in high-reliability microcontrollers and analog/mixed-signal ICs for automotive and industrial markets.

The MB90350 Series was developed specifically for automotive electronic control units needing robust CAN communication, deterministic real-time performance, and extended temperature resilience - targeting ASIL-B functional safety requirements without external safety monitors.

FAQ

Does MB90F352PFM-GE1 support CAN FD?

No. MB90F352PFM-GE1 implements only Classical CAN (ISO 11898-1:2003), compliant with CAN Specification Version 2.0 Part A and Part B, with maximum bit rate of 1 Mbps. It does not support CAN FD framing, arbitration bit rate extension, or CRC-17/21 algorithms. CAN FD capability requires newer architectures such as Fujitsu's FM4 or Socionext's AX series.

What is the purpose of the X0A/X1A pins on MB90F352PFM-GE1?

X0A and X1A are dedicated pins for connecting an external 100 kHz crystal oscillator to enable sub-clock operation - used by the watch timer, clock monitor, and low-power wake-up functions. When unused, the internal CR oscillator (100 kHz typical) serves as sub-clock source, eliminating need for external components while maintaining timing accuracy within ±30% over temperature.

How does the Flash security feature protect firmware?

The Flash security lock prevents external read-out of program memory via debug interfaces (e.g., JTAG or on-chip emulator). Once enabled, it blocks access to Flash contents during programming, verification, or emulation - protecting proprietary algorithms and calibration data. Security is implemented at hardware level and cannot be bypassed without chip erase.

Can MB90F352PFM-GE1 operate with a 3.3 V supply?

No. MB90F352PFM-GE1 requires 4.0 V to 5.5 V for Flash programming and A/D conversion, and 3.5 V to 5.5 V for normal operation. Its internal regulator generates 3 V for the core, but input VCC must meet minimum 3.5 V. Operation below 3.5 V risks undefined behavior, failed ADC conversions, and Flash write errors - per DS07-13737-4E Absolute Maximum Ratings.