Infineon Technologies CY9BF616TBGL-GK7E1

Overview

CY9BF616TBGL-GK7E1 from Infineon Technologies (formerly Cypress) is a 32-bit ARM® Cortex®-M3 microcontroller with 1 MB Flash, 128 KB SRAM, dual Ethernet-MAC, dual USB 2.0 Full-Speed interfaces, and integrated motor control timers. It operates up to 144 MHz, includes MPU, NVIC with 48 peripheral interrupts, and supports industrial embedded control in motor drives, industrial gateways, and networked PLCs.

For engineers reviewing the CY9BF616TBGL-GK7E1 datasheet, CY9BF616TBGL-GK7E1 pinout, CY9BF616TBGL-GK7E1 application, or CY9BF616TBGL-GK7E1 equivalent, key selection criteria include dual Ethernet-MAC timing compliance (IEEE 802.3, MII/RMII), USB host/device coexistence, 12-bit ADC scan conversion with FIFO, QPRC encoder interface, and 5 V-tolerant GPIO allocation via port relocate function.

Technical Context

This FM3-series MCU integrates a Cortex-M3 r2p1 core with tightly coupled memory subsystems: SRAM0 (64 KB on I/D buses) for code/data execution and SRAM1 (64 KB on system bus) for DMA-peripheral buffering. Its dual Ethernet-MAC implements IEEE 1588-2008 PTP with dedicated 2 KB TX/RX FIFOs and descriptor-based DMAC.

The peripheral set is optimized for real-time motion control: three multi-function timers support PWM generation, dead-time insertion, and A/D activation triggers; three QPRC units directly interface quadrature encoders with 16-bit position/revolution counters and configurable A/B/Z edge detection.

Key Specifications

Pinout & Package

Package: LQFP-176 (24 × 24 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit industrial microcontroller applications.

Compared with RA6M4 and S32K344, CY9BF616TBGL-GK7E1 delivers optimal balance for cost-sensitive industrial motion control: integrated QPRC eliminates external components, FM3 motor timers reduce firmware overhead, and dual Ethernet-MAC enables protocol isolation without external switches.

Availability

CY9BF616TBGL-GK7E1 is available at Aetrix Electronics and suitable for industrial motor drives, factory automation gateways, smart building HVAC controllers, and energy metering data aggregators requiring stable component supply across multi-year production cycles.

Supply support for CY9BF616TBGL-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 German semiconductor leader specializing in power management, automotive MCUs, and industrial control solutions, with global manufacturing and R&D infrastructure.

The CY9BF616TBGL-GK7E1 belongs to the FM3 family - a line of high-integration ARM Cortex-M3 microcontrollers engineered specifically for deterministic real-time control in motor drives, industrial networking, and factory automation equipment.

FAQ

What power supply configurations are required for USB and Ethernet operation?

CY9BF616TBGL-GK7E1 requires separate I/O supplies: USBVCC0 (3.0–3.6 V) for USB channel 0, USBVCC1 (3.0–3.6 V) for USB channel 1, and ETHVCC (3.0–5.5 V) for Ethernet PHY interfacing. These must be decoupled with 100 nF ceramic capacitors near respective VCC pins. Main VCC (2.7–5.5 V) powers core logic and GPIO not assigned to USB/Ethernet functions.

Does this MCU support hardware-based IEEE 1588 timestamping in both Ethernet channels?

Yes - both Ethernet-MAC units implement full IEEE 1588-2008 Precision Time Protocol (PTP) with hardware timestamping for ingress/egress frames. Each MAC has independent timestamp registers, fine/coarse correction logic, and synchronization message handling without CPU intervention, enabling sub-microsecond clock alignment across distributed nodes.

How is the port relocate function implemented, and what peripherals can be reassigned?

Port relocate uses dedicated register sets (e.g., PFRx registers) to map up to 8 peripheral functions - including UART, CSIO, LIN, I²C, and base timer outputs - to any GPIO pin supporting that function class. Relocation is performed at runtime without reset; however, conflicting assignments (e.g., two UARTs on same pin) are blocked by hardware write-protection logic.

What is the maximum achievable PWM frequency with dead-time control, and how is it configured?

Base timers support PWM output up to 72 MHz (half of 144 MHz core clock) with programmable dead-time insertion from 1 to 255 clock cycles. Dead-time is applied automatically between complementary outputs (e.g., CH0A/CH0B) using dedicated DTIF logic; configuration is done via DTCTL register with independent rising/falling edge delay settings per channel pair.