Infineon Technologies CY9BF517SPMC-GK7E1

Overview

CY9BF517SPMC-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 CY9BF517SPMC-GK7E1 datasheet, CY9BF517SPMC-GK7E1 pinout, CY9BF517SPMC-GK7E1 application, or CY9BF517SPMC-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 QPRC encoder interface capability in industrial motion control designs.

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 (4–48 MHz main, 32.768 kHz sub), two internal CR oscillators (4 MHz/100 kHz), and a configurable Main PLL - enabling dynamic switching for low-power and high-performance modes.

The peripheral set is optimized for motor control: dual CAN controllers (1 Mbps, 32 message buffers), three QPRC channels (16-bit position/revolution counters with AIN/BIN/ZIN edge configuration), and multi-function timers with dead-time insertion, DTIF interrupt, and A/D activation compare. USB subsystem supports concurrent device (6 endpoints, double-buffered) and host (256-byte packet, auto-connect detection) operation.

Key Specifications

Pinout & Package

Package: 176-pin LQFP (24 × 24 mm, 0.5 mm pitch). Pin assignment follows CY9B510T Series standard layout per datasheet Rev. *D, Page 9–11. All pins support port relocation, 5 V-tolerant I/O on designated pins, and configurable pull-up.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F407VGT6 and R7F7010233AFP, CY9BF517SPMC-GK7E1 uniquely combines dual CAN, hardware QPRC, and dual-role USB in a single Cortex-M3 package - delivering balanced integration for cost-sensitive industrial motion controllers requiring both fieldbus and PC connectivity.

Availability

CY9BF517SPMC-GK7E1 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, programmable logic controller I/O modules, and USB-enabled industrial gateways requiring stable component supply and long-term lifecycle support.

Supply support for CY9BF517SPMC-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 is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, and security solutions with strong industrial and automotive market presence.

This part 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 analog/motor peripherals and robust real-time performance.

FAQ

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

The CY9BF517SPMC-GK7E1 achieves up to 144 MHz via its Main PLL, which accepts input from either the 4–48 MHz external main oscillator or the 4 MHz internal CR oscillator. The Flash Accelerator enables zero-wait-state execution up to 72 MHz and maintains efficient access above that threshold using its 16 KB trace buffer - confirmed in datasheet Section 12.4.4–12.4.5.

Does this MCU support USB host functionality without external components?

Yes - the integrated USB 2.0 Full-Speed host controller supports up to 256-byte packet transfers, automatic device connect/disconnect detection, and IN/OUT token handshake generation. No external PHY or transceiver is required; only standard USB termination resistors (15 Ω series on DP/DM) and a 1.5 kΩ pull-up on DP for device mode are needed per datasheet Figure 12-43.

How many quadrature encoder interfaces does it provide, and what are their capabilities?

It provides three independent QPRC channels (QPRC0–QPRC2), each with configurable AIN/BIN/ZIN edge detection, 16-bit position and revolution counters, and two 16-bit compare registers. Each channel supports up/down counting and Z-index capture - detailed in Section 15.1 of the FM3 Peripheral Manual and validated in CY9B510T datasheet pages 42–45.

Is the SRAM physically partitioned, and how does that affect system design?

Yes - SRAM is split into SRAM0 (64 KB, connected to Cortex-M3 I-code/D-code buses) and SRAM1 (64 KB, connected to system bus). This allows concurrent CPU instruction fetch and DMA transfers without bus arbitration delay. SRAM0 is ideal for code and stack; SRAM1 is optimal for large buffers and peripheral data - specified in Section 4.2.2 of the datasheet.