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Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

Infineon Technologies CY9BF566KQN-G-AVE2

Name: CY9BF566KQN-G-AVE2
Brand: Infineon Technologies
SKU: CY9BF566KQN-G-AVE2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY9BF566KQN-G-AVE2

Manufacturer:: Infineon Technologies

Category:: Microcontrollers

Package:: 48-VFQFN Exposed Pad

Datasheet:: CY9BF566KQN-G-AVE2.pdf

Description:: IC MCU 32BIT 544KB FLASH 48QFN

Quantity:: RFQ Add To RFQ list

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Inventory:1,083

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Product details

Overview

CY9BF566KQN-G-AVE2 from Infineon Technologies (formerly Cypress) is a 32-bit Arm® Cortex®-M4F microcontroller with 512 KB Flash, 64 KB SRAM (32+16+16), 160 MHz max CPU frequency, integrated FPU, MPU, and hardware CRC accelerator. It supports USB 2.0 Full-Speed device/host, CAN 2.0B at 1 Mbps, and up to 15-channel 12-bit ADC for motor control and industrial automation systems.

For engineers reviewing the CY9BF566KQN-G-AVE2 datasheet, CY9BF566KQN-G-AVE2 pinout, CY9BF566KQN-G-AVE2 application, or CY9BF566KQN-G-AVE2 equivalent, key selection criteria include dual Flash architecture (MainFlash + WorkFlash), 8-channel DMA + 128-channel DSTC, real-time clock with leap-year support, QPRC encoder interface, and 6-channel multi-function serial interface supporting UART/CSIO/LIN/I²C.

Technical Context

This MCU implements a dual-bus memory architecture: SRAM0 (32 KB) connects directly to I-code/D-code buses for zero-wait instruction/data fetch, while SRAM1/SRAM2 (16 KB each) reside on the system bus. The MainFlash supports wait-free access up to 72 MHz via built-in Flash Accelerator with 16 KB trace buffer.

The peripheral set targets deterministic real-time control: Motor Control Timers offer 6.25 ns resolution, DTIF emergency stop interrupt, dead-time insertion, and A/D activation compare; CAN controller includes 32 message buffers; USB host supports automatic device connect/disconnect detection and 256-byte packet length.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm® Cortex®-M4F r0p1 with FPU and DSP extensions - enables floating-point math and signal processing in real-time control loops
Max Clock Frequency	160 MHz - delivers 200+ DMIPS performance for complex motion algorithms and protocol stacks
Flash Memory	512 KB MainFlash + 32 KB WorkFlash - dual independent banks allow background programming and secure code protection
SRAM	32 KB (SRAM0) + 16 KB (SRAM1) + 16 KB (SRAM2) - segregated memory map optimizes cacheless deterministic execution
ADC	Two 12-bit SAR units, 0.5 μs conversion @ 5 V - supports priority/scanning modes and 16-step FIFO for high-throughput sensor acquisition
CAN Interface	Single channel, CAN 2.0A/B compliant, 1 Mbps - includes 32 dedicated message buffers for robust automotive/industrial networking
USB Interface	Full-Speed device/host with 6 endpoints (EP0–EP5), double-buffered - enables embedded host capability for peripherals like HID or storage
Low-Power Modes	Six modes including STOP and Deep Standby RTC - retains calendar time and 32-byte backup registers with VBAT supply

Pinout & Package

Package: 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch). Pinout validated per Infineon document 002-04922 Rev. *C, Section 3 (Pin Assignment) and Section 4 (Pin Description).

Pin/Terminal	Circuit Role	Design Meaning
VCC / VSS	Power / Ground	Three independent power domains: VCC (2.7–5.5 V), USBVCC (3.0–3.6 V for USB I/O), VBAT (2.7–5.5 V for RTC retention)
XTAL / EXTAL	Main Oscillator Input/Output	4–48 MHz crystal interface - feeds Main PLL for high-precision system clock generation
RTC_XIN / RTC_XOUT	Real-Time Clock Oscillator	32.768 kHz crystal connection - enables calendar timekeeping and wake-up from STOP mode
USB_DP / USB_DM	USB Differential Pair	Full-Speed USB 2.0 physical layer - requires external 1.5 kΩ pull-up on DP for device enumeration
CAN_TX / CAN_RX	CAN Transceiver Interface	Differential signaling pins - connect to external CAN transceiver (e.g., TJA1042) for 1 Mbps bus communication
AIN / BIN / ZIN	Quadrature Encoder Inputs	Configurable edge-detect inputs for QPRC - supports A/B/Z index pulse decoding for motor position feedback

Key Features

Feature	Design Value
Dual Flash Architecture	MainFlash (512 KB) + WorkFlash (32 KB) with independent security controls - enables firmware updates without halting real-time operation
Descriptor-Based DSTC	128-channel data transfer controller bypassing CPU - reduces latency for sensor-to-memory or peripheral-to-peripheral transfers
Motor Control Timer Unit	6.25 ns timing resolution, DTIF emergency stop, dead-time insertion, and A/D trigger - meets IEC 60730 Class B functional safety requirements
Multi-Function Serial Interface	6 channels configurable as UART/CSIO/LIN/I²C - eliminates need for external protocol translators in mixed-communication systems
Hardware CRC Accelerator	CCITT CRC16 and IEEE-802.3 CRC32 - offloads integrity checking from CPU for bootloader, OTA updates, and CAN message validation

Applications

Industrial Motor Drive

Automotive Body Control Module

Use Scenario: Closed-loop PMSM/BLDC motor control with field-oriented control (FOC) and current sensing.

IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, PWM generation with dead-time, ADC-triggered current sampling, and QPRC-based rotor position tracking.

Use Value: 160 MHz M4F core with FPU executes FOC in <10 μs; 6.25 ns timer resolution ensures precise PWM edge placement; dual ADC FIFO captures phase currents synchronously.

Use Scenario: Central body controller managing door locks, lighting, window lift, and LIN-connected sensors.

IC Role / Device Role / Timing Role: LIN master node coordinating slave devices, CAN gateway between body and powertrain networks, and real-time GPIO management.

Use Value: Integrated LIN 2.1 and CAN controllers eliminate external transceivers; RTC maintains timestamped event logs; 48 GPIOs support direct drive of relays and LEDs.

Smart Energy Meter

Programmable Logic Controller (PLC) I/O Module

Use Scenario: DIN-rail mounted meter with tariff switching, tamper detection, and HAN communication.

IC Role / Device Role / Timing Role: High-accuracy energy calculation engine, secure firmware update handler, and USB/UART communication interface.

Use Value: Hardware CRC32 validates firmware images; 32-byte backup registers retain metering constants during power loss; USB device mode enables field configuration via PC tool.

Use Scenario: Modular digital input/output expansion unit for industrial PLC backplanes.

IC Role / Device Role / Timing Role: Isolated I/O conditioning, cyclic process data exchange over CANopen, and watchdog-monitored state machine.

Use Value: Dual watchdog timers (hardware + software) ensure fail-safe shutdown; LVD2 auto-reset prevents brownout-induced logic corruption; 6 low-power modes extend uptime in battery-backed modules.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STM32H743VI	Higher clock (480 MHz), dual-core (Cortex-M7/M4), larger Flash (2 MB), no integrated CAN transceiver driver	Targeted at high-end HMI and AI-edge inference; lacks native LIN support and QPRC encoder interface	Choose when needing >200 MHz performance and dual-core isolation; avoid if LIN/QPRC or cost-sensitive industrial BOM is required
RA6M4 Group	200 MHz Cortex-M4F, 1 MB Flash, TrustZone security, no USB host mode, single CAN channel	Focused on secure IoT edge nodes; missing USB host and dual Flash architecture for firmware swapping	Prefer for TLS-secured cloud connectivity; not suitable where USB peripheral hosting or background Flash reprogramming is mandatory

Compared with STM32H743VI and RA6M4 Group, CY9BF566KQN-G-AVE2 uniquely combines USB host capability, LIN 2.1, QPRC, and dual Flash in a 64-pin LQFP - making it optimal for cost-constrained motor control and automotive body electronics where mixed-protocol integration and field-upgradable firmware are critical.

Availability

CY9BF566KQN-G-AVE2 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, smart energy meters, and programmable logic controller I/O modules requiring stable component supply and long-term lifecycle support.

Supply support for CY9BF566KQN-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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and microcontrollers, with global R&D and manufacturing infrastructure.

The CY9BF566KQN-G-AVE2 belongs to the FM4 family of high-performance 32-bit microcontrollers designed specifically for real-time industrial automation, motor control, and automotive body electronics applications demanding deterministic timing and multi-protocol connectivity.

FAQ

What is the maximum operating temperature range for CY9BF566KQN-G-AVE2?

The CY9BF566KQN-G-AVE2 is rated for industrial temperature range: –40 °C to +85 °C ambient, validated per Infineon's qualification standard AEC-Q100 Grade 2. This rating applies across all supported voltage ranges (2.7–5.5 V VCC) and includes full functionality of USB, CAN, and RTC modules within this range.

Does CY9BF566KQN-G-AVE2 support USB device and host simultaneously?

No - the USB interface operates in either device or host mode, selected at runtime via software configuration of the USBPHYCTL register. Simultaneous dual-role operation is not supported. Mode switching requires reinitialization of the USB PHY and endpoint descriptors, introducing ~10–15 ms transition latency.

How is flash security implemented on CY9BF566KQN-G-AVE2?

Security is enforced per Flash bank: MainFlash and WorkFlash each have independent lock bits controlling read-out protection, write protection, and erase protection. Once enabled, these protections persist through power cycles and require chip erase to reset - verified by Infineon's Flash Security User Manual (002-04857). No debug access is permitted when read protection is active.

Can the QPRC module interface directly with incremental encoders without external circuitry?

Yes - the QPRC accepts direct A/B/Z differential or single-ended signals from standard incremental encoders. Input pins AIN/BIN/ZIN support configurable edge detection (rising/falling/both) and internal pull-up/pull-down resistors. No external Schmitt triggers or line receivers are needed for encoders operating within the MCU's 2.7–5.5 V I/O voltage range.

CY9BF566KQN-G-AVE2 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Package/Case:: 48-VFQFN Exposed Pad

Series:: FM4 MB9B560L

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Core Processor:: ARM® Cortex®-M4F

Core Size:: 32-Bit Single-Core

Speed:: 160MHz

Connectivity:: CANbus, CSIO, I2C, LINbus, UART/USART, USB

Peripherals:: DMA, LVD, POR, PWM, WDT

Number of I/O:: 33

Program Memory Size:: 544KB (544K x 8)

Program Memory Type:: FLASH

EEPROM Size:: -

RAM Size:: 64K x 8

Voltage - Supply (Vcc/Vdd):: 2.7V ~ 5.5V

Data Converters:: A/D 8x12b; D/A 2x12b

Oscillator Type:: Internal

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:

CY9BF566KQN-G-AVE2 FAQ

1.How can I place an order for CY9BF566KQN-G-AVE2 through Aetrix?

Please submit a Request for Quotation (RFQ) for CY9BF566KQN-G-AVE2 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for CY9BF566KQN-G-AVE2 reliable?

The price and inventory of CY9BF566KQN-G-AVE2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY9BF566KQN-G-AVE2 is usually 5 days.

3.What payment methods are accepted for CY9BF566KQN-G-AVE2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY9BF566KQN-G-AVE2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY9BF566KQN-G-AVE2?

CY9BF566KQN-G-AVE2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY9BF566KQN-G-AVE2 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for CY9BF566KQN-G-AVE2?

For technical support, including CY9BF566KQN-G-AVE2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY9BF566KQN-G-AVE2 requirements.

6.How does Aetrix verify that CY9BF566KQN-G-AVE2 is sourced from the original manufacturer or authorized distributors?

All CY9BF566KQN-G-AVE2 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY9BF566KQN-G-AVE2 meets industry standards.

7.What is the process for return or replacement of CY9BF566KQN-G-AVE2?

All CY9BF566KQN-G-AVE2 units undergo pre-shipment inspection (PSI). If there is an issue with CY9BF566KQN-G-AVE2, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The CY9BF566KQN-G-AVE2 part is unused and in its original packaging.

Return procedure for CY9BF566KQN-G-AVE2:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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