Infineon Technologies MB9BFD18SPMC-GK7E1

Overview

MB9BFD18SPMC-GK7E1 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M3 FM3 microcontroller with 1 MB on-chip Flash, 128 KB SRAM, dual CAN 2.0A/B interfaces (1 Mbps), dual Ethernet-MAC (10/100 Mbps with MII/RMII), and USB 2.0 Full-Speed device/host support. It integrates motor control timers, 32-channel 12-bit ADC (1.0 μs conversion), and operates from 2.7 V to 5.5 V at up to 144 MHz for industrial embedded control systems.

For engineers reviewing the MB9BFD18SPMC-GK7E1 datasheet, MB9BFD18SPMC-GK7E1 pinout, MB9BFD18SPMC-GK7E1 application, or MB9BFD18SPMC-GK7E1 equivalent, key selection criteria include dual Ethernet-MAC with IEEE 1588-2008 PTP support, integrated USB host/device capability, CAN FD readiness via software configuration, and 176-pin LQFP package with 154 GPIOs including 5 V-tolerant pins.

Technical Context

The MB9BFD18SPMC-GK7E1 implements an Arm Cortex-M3 r2p1 core with Memory Protection Unit (MPU) and NVIC supporting 48 peripheral interrupts across 16 priority levels. Its clock system includes five sources - two external oscillators (4–50 MHz main, 32.768 kHz sub), two internal CR oscillators (4 MHz high-speed, 100 kHz low-speed), and a main PLL - enabling dynamic switching and robust clock supervision.

Peripheral integration centers on deterministic real-time control: dual Ethernet-MAC with dedicated 2 KB TX/RX FIFOs and IEEE 1588-2008 timestamping; dual CAN controllers with 32 message buffers; and multi-function serial interfaces (up to 8 channels) configurable as UART, CSIO, LIN 2.1, or I²C - all with independent baud rate generators and error detection.

Key Specifications

Pinout & Package

This device is housed in a 176-pin LQFP package (24 × 24 mm, 0.5 mm pitch) with exposed thermal pad, rated for industrial temperature range (−40°C to +85°C). Pin functions are fully defined in Infineon's CY9BD10T Series datasheet Section 3 (Pin Assignment) and Section 4 (List of Pin Functions).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with MB9BFD18SPMC-GK7E1, the GK7E2 variant adds factory-set security features without performance trade-offs, while the S32K144 offers automotive-grade safety certification at the expense of industrial Ethernet and precision time synchronization capabilities.

Availability

MB9BFD18SPMC-GK7E1 is available at Aetrix Electronics and suitable for industrial PLC controllers, smart grid communication nodes, and factory automation gateways requiring stable component supply, long-term lifecycle support, and full industrial temperature grade operation.

Supply support for MB9BFD18SPMC-GK7E1 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

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive, industrial, and security solutions, with global R&D and manufacturing infrastructure.

The FM3 family - including MB9BFD18SPMC-GK7E1 - was designed specifically for high-integration industrial embedded control, emphasizing deterministic real-time performance, multi-protocol connectivity (CAN/Ethernet/USB), and robust operation across extended temperature ranges.

FAQ

What is the maximum operating frequency and voltage range for MB9BFD18SPMC-GK7E1?

The MB9BFD18SPMC-GK7E1 operates at up to 144 MHz with a supply voltage range of 2.7 V to 5.5 V on the main VCC rail. USB and Ethernet I/O rails have specific requirements: USBVCC0/1 must be 3.0–3.6 V when USB is active, and ETHVCC must be 3.0–5.5 V when Ethernet is enabled. These constraints ensure signal integrity and compliance with USB 2.0 Full-Speed and IEEE 802.3 physical layer specifications.

Does MB9BFD18SPMC-GK7E1 support CAN FD or only classical CAN 2.0?

The MB9BFD18SPMC-GK7E1 implements two CAN 2.0A/B controllers compliant with ISO 11898-1, supporting bit rates up to 1 Mbps. It does not include native CAN FD (Flexible Data-Rate) hardware support - such as variable bit rate switching or extended data length - as confirmed by the CY9BD10T Series Peripheral Manual and register map. CAN FD functionality would require external transceivers and software-layer adaptation, not hardware acceleration.

How many independent DMA channels does this microcontroller provide, and what transfer types are supported?

The MB9BFD18SPMC-GK7E1 integrates an 8-channel DMA controller with independent bus access separate from the CPU. Each channel supports block, burst, and demand transfer modes, with configurable data widths (byte, half-word, word), transfer counts from 1 to 65,536, and block sizes from 1 to 16. This architecture enables concurrent CPU execution and peripheral-to-memory transfers - critical for high-throughput Ethernet packet handling and ADC data streaming without CPU intervention.

Is the USB interface capable of simultaneous device and host operation?

Yes - the MB9BFD18SPMC-GK7E1 provides two independent USB 2.0 Full-Speed interfaces: one configured exclusively as a device (with six endpoints, including 256-byte EP1 buffer), and the other as a host (supporting up to 256-byte packets, automatic device connect/disconnect detection, and IN/OUT token handshake). Both operate concurrently under separate clock domains derived from the integrated USB/Ethernet PLL, enabling true dual-role USB functionality without time-sharing or mode switching.