Infineon Technologies MB90F924NCSPMC-GE1

Overview

MB90F924NCSPMC-GE1 from Cypress Semiconductor (formerly Fujitsu) is a 16-bit F2MC-16LX microcontroller featuring 256 KB Flash, 16 KB RAM, and integrated CAN 2.0B controller. It operates at up to 40 MHz with PLL clock multiplication support (×1–×4), includes 12-bit ADC (16 channels), and targets automotive body control modules requiring real-time CAN communication and low-power stop modes.

For engineers reviewing the MB90F924NCSPMC-GE1 datasheet, MB90F924NCSPMC-GE1 pinout, MB90F924NCSPMC-GE1 application, or MB90F924NCSPMC-GE1 equivalent, key selection considerations include PLL stop mode behavior, CAN timing accuracy under voltage/temperature variation, Flash endurance (100K write/erase cycles), and compatibility with CY-series migration paths per Cypress PCN 002-04398 Rev. *A.

Technical Context

This MCU implements the F2MC-16LX CPU core with Harvard architecture, supporting instruction fetch from Flash and data access from RAM in parallel. It integrates a 32-bit programmable watchdog timer, 16-bit multifunction timers (including input capture/output compare), and a dedicated CAN controller with 32 message objects and automatic retransmission.

The device uses a 100-pin LQFP package with dedicated CANH/CANL pins routed to internal transceiver logic, and supports three low-power modes: Sleep, Main Stop, and PLL Stop - though PLL Stop requires workaround per errata 002-04398 due to unstable clock recovery after external interrupt wake-up.

Key Specifications

Pinout & Package

MB90F924NCSPMC-GE1 is housed in a 100-pin LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are validated per Cypress MB90F924 datasheet Rev. 1.20 and errata document 002-04398.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MB90F924NCSPMC-GE1, the CY90F924NCSPMC-GE1 offers guaranteed errata resolution and Cypress lifecycle support, while the MB90F923NCSPMC-GE1 sacrifices CAN capability and Flash capacity - making it unsuitable for distributed automotive control where message routing and firmware updates over CAN are mandatory.

Availability

MB90F924NCSPMC-GE1 is available at Aetrix Electronics and suitable for automotive body electronics, door module control, and roof actuation systems requiring stable component supply, extended temperature operation (−40°C to +105°C), and AEC-Q100 Grade 2 qualification.

Supply support for MB90F924NCSPMC-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

Cypress Semiconductor (acquired Spansion and former Fujitsu microcontroller business) designs high-reliability embedded solutions for automotive, industrial, and consumer markets, with focus on connectivity, memory, and programmable systems.

The MB90F924 belongs to the F2MC-16LX family, engineered specifically for automotive body electronics requiring CAN 2.0B compliance, robust EMC performance, and fail-safe low-power operation in harsh environments.

FAQ

What is the maximum operating frequency of the MB90F924NCSPMC-GE1?

The MB90F924NCSPMC-GE1 achieves a maximum CPU clock frequency of 40 MHz using its on-chip PLL with multiplication factors of ×1 to ×4. This requires an external crystal (4–20 MHz) on XTAL1/XTAL2 pins. The actual system frequency depends on PLL configuration and oscillator stability, and must comply with the PLL stop mode workaround documented in errata 002-04398 Rev. *A.

Does this MCU include a CAN transceiver or only a controller?

The MB90F924NCSPMC-GE1 integrates only a CAN protocol controller (per ISO 11898-1), not a physical layer transceiver. External CAN transceivers (e.g., TJA1042, SN65HVD230) must be connected to the CANH and CANL pins. The MCU provides dedicated differential I/O drivers and slew-rate control registers to ensure signal integrity with compliant transceivers.

How is Flash memory protected against unauthorized access?

Flash protection is implemented via on-chip security lock bits that disable read-out and debug interface access when programmed. Once locked, Flash contents cannot be extracted via JTAG or serial interfaces. Unlocking requires chip erase, which clears all user code and configuration data. This meets automotive ECU requirements for firmware intellectual property protection per ISO/SAE 21434.

Is the MB90F924NCSPMC-GE1 qualified for automotive use?

Yes - the MB90F924NCSPMC-GE1 is AEC-Q100 Grade 2 qualified (−40°C to +105°C ambient), with tested performance across voltage (3.0–5.5 V), EMC (ISO 11452-2/4), and ESD (HBM ±2 kV) stress conditions. Its design incorporates fail-safe features including clock failure detection, memory parity/ECC, and watchdog supervision aligned with ASIL-B development processes.