Infineon Technologies CY9BF565KQN-G-AVE2

Overview

CY9BF565KQN-G-AVE2 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M4F microcontroller with FPU, 512 KB MainFlash, 32 KB WorkFlash, 64 KB SRAM (32+16+16), and integrated USB 2.0 Full-Speed device/host, CAN 2.0B, six multi-function serial interfaces, and motor control timers. It operates up to 160 MHz and supports industrial motor drives requiring real-time PWM, A/D conversion, and position feedback.

For engineers reviewing the CY9BF565KQN-G-AVE2 datasheet, CY9BF565KQN-G-AVE2 pinout, CY9BF565KQN-G-AVE2 application, or CY9BF565KQN-G-AVE2 equivalent, key selection criteria include Flash/SRAM partitioning, dual USB mode support, CAN FD readiness via software stack, 12-bit ADC timing (0.5 µs @ 5 V), and QPRC encoder interface capability for closed-loop motion control.

Technical Context

This MCU implements a deterministic real-time architecture centered on the Arm Cortex-M4F core (r0p1), featuring an MPU for memory isolation, NVIC with 128 peripheral interrupts, and SysTick for OS scheduling. Its dual Flash banks enable secure code updates with zero downtime via bank-swapping logic.

The peripheral subsystem integrates time-critical functions: a 6.25 ns-resolution multifunction timer with dead-time insertion and DTIF interrupt, 15-channel 12-bit ADC with priority/scanning FIFO, and QPRC with configurable A/B/Z input edge detection - all synchronized to a shared clock domain for deterministic motor control loop execution.

Key Specifications

Pinout & Package

Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, with 48 high-speed GPIOs, 5 V-tolerant pins on selected I/Os, and dedicated VBAT supply for RTC retention.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit Arm Cortex-M4F microcontroller applications.

Compared with STM32H743VI and RA6M5GFP, CY9BF565KQN-G-AVE2 delivers optimal balance for cost-sensitive motor control: integrated QPRC eliminates external components, USB host enables field-programmable modems, and dual Flash supports certified firmware rollback - all in a compact 64-pin LQFP.

Availability

CY9BF565KQN-G-AVE2 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body controllers, USB-capable HMIs, and smart energy gateways requiring stable component supply across extended product lifecycles.

Supply support for CY9BF565KQN-G-AVE2 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 systems, automotive MCUs, and security solutions.

This device belongs to the FM4 family - Infineon's high-performance, cost-optimized 32-bit microcontroller line designed specifically for industrial automation, motor control, and automotive body electronics with integrated analog and communication peripherals.

FAQ

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

The CY9BF565KQN-G-AVE2 achieves up to 160 MHz using its internal Main PLL, which accepts 4–48 MHz input from an external crystal or oscillator. The PLL output feeds the CPU and high-speed peripherals, while Flash Accelerator ensures zero-wait-state execution even above 72 MHz by caching instruction fetches and prefetching based on branch prediction logic.

Does this MCU support CAN FD or only classical CAN 2.0?

This MCU implements only classical CAN 2.0A/B (ISO 11898-1) at up to 1 Mbps, with 32 message buffers and automatic retransmission. It does not include native CAN FD (Flexible Data-Rate) hardware support. However, CAN FD protocol stacks can be implemented in software using the existing CAN peripheral and CPU resources, subject to bandwidth and timing constraints.

How is the QPRC used for motor position feedback?

The Quadrature Position/Revolution Counter (QPRC) accepts A/B/Z encoder signals on dedicated pins (QEA/QEB/QEZ), configures edge sensitivity per channel, and maintains separate 16-bit position and revolution counters. It operates autonomously without CPU involvement, triggering interrupts on overflow or match against two compare registers - enabling precise commutation timing in BLDC/PMSM drives.

What low-power modes retain RTC functionality with minimal current draw?

Two deep-standby modes retain RTC operation: "Deep standby RTC" (with optional SRAM retention) and "Deep standby stop" (with optional SRAM retention). Both use the 32.768 kHz sub-clock and draw ≤1.2 µA typical from VBAT, supporting calendar functions and alarm wake-up intervals up to 64 seconds while preserving RTC registers and 32-byte backup registers.