Infineon Technologies CY9BF518SPMC-GK7E1

Overview

CY9BF518SPMC-GK7E1 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller with 1 MB Flash, 128 KB SRAM, dual CAN 2.0B interfaces, USB 2.0 Full-Speed device/host support, and integrated motor control peripherals including QPRC, multi-function timers, and PWM units. It operates up to 144 MHz, supports 2.7–5.5 V supply, and targets real-time embedded motor control systems.

For engineers reviewing the CY9BF518SPMC-GK7E1 datasheet, CY9BF518SPMC-GK7E1 pinout, CY9BF518SPMC-GK7E1 application, or CY9BF518SPMC-GK7E1 equivalent, key selection criteria include dual CAN timing compliance, USB host/device coexistence, Flash accelerator performance at >72 MHz, SRAM partitioning (SRAM0/SRAM1), and hardware watchdog independence in STOP mode.

Technical Context

This MCU implements the ARM Cortex-M3 r2p1 core with Memory Protection Unit (MPU) and NVIC supporting 48 peripheral interrupts across 16 priority levels. Its clock system integrates five sources - two external oscillators, two internal CR oscillators, and a main PLL - with dynamic switching and CSV-based supervision for external clock failure detection.

The peripheral architecture features dual independent CAN controllers (1 Mbps, 32 message buffers each), two USB channels (one device/host configurable), eight multi-function serial interfaces (UART/CSIO/LIN/I²C), and three dedicated motor-control blocks: QPRC (16-bit position/revolution counters), multi-function timers with A/D activation and DTIF, and base timers supporting PWM/PPG/PWC modes.

Key Specifications

Pinout & Package

Package: 176-pin LQFP (24 mm × 24 mm, 0.5 mm pitch). Pin mapping validated per CY9B510T Series datasheet Rev. *D, pages 9–11 (Pin Assignment) and 12–47 (List of Pin Functions). All pins support port relocation; up to 154 are fast I/O with individual pull-up control and 5 V tolerance on designated pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F407VGT6 and R7F7010283AFP, CY9BF518SPMC-GK7E1 uniquely combines dual CAN 2.0B, USB device/host duality, QPRC, and motor-timer hardware in a single die - reducing BOM count and PCB area for compact, serviceable motor control designs.

Availability

CY9BF518SPMC-GK7E1 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, smart power inverters, and PLC I/O modules requiring stable component supply, long-term lifecycle support, and qualified sourcing.

Supply support for CY9BF518SPMC-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, and industrial control ICs, with global manufacturing and quality certifications including IATF 16949 and ISO 9001.

CY9BF518SPMC-GK7E1 belongs to the FM3 family of 32-bit microcontrollers designed specifically for cost-optimized, high-reliability embedded motor control and industrial automation applications - emphasizing integrated timing, analog, and communication peripherals to minimize external components.

FAQ

What is the maximum operating frequency and how is it achieved?

The CY9BF518SPMC-GK7E1 achieves up to 144 MHz core operation using the main PLL driven by an external 4–48 MHz crystal. The Flash Accelerator ensures zero-wait-state execution up to 72 MHz and maintains effective access speed beyond that via prefetch and cache-like buffering - verified in datasheet Rev. *D Section 12.4.4.

Does this MCU support CAN FD or only classical CAN?

This device supports only Classical CAN (ISO 11898-1:2003, CAN 2.0A/B), with bit rates up to 1 Mbps and 32 message buffers per channel. It does not implement CAN FD protocol features such as flexible data rate or extended data length - confirmed in Section 3.3.2 of the CY9B510T Series datasheet.

How many USB endpoints are supported and what transfer types are available?

The USB device interface supports six endpoints: Endpoint 0 (control), Endpoints 1–5 (configurable as bulk/interrupt/isochronous). Endpoint 1 has 256-byte buffers; others have 64-byte buffers. The USB host interface supports bulk, interrupt, and isochronous transfers with up to 256-byte packets - detailed in Sections 3.4.1 and 3.4.2 of the datasheet.

Is the SRAM physically partitioned and how does it affect memory access?

Yes: 64 KB SRAM0 connects to the Cortex-M3 I-code and D-code buses for instruction/data access with minimal latency; 64 KB SRAM1 connects to the system bus and is accessible by DMA and peripherals. This separation prevents bus contention during high-bandwidth DMA transfers - specified in Section 2.2.2 and validated in memory map diagrams (Section 10).