CY9BF521KQN-G-AVE2

Product Overview

The CY9BF521KQN-G-AVE2 is a 32-bit microcontroller from Infineon's FM3 CY9BFx2xK/L/M series, based on the Arm Cortex-M3 processor core. The device operates at up to 72 MHz and integrates 96 KB of Flash memory and 16 KB of SRAM.

The CY9BF521KQN-G-AVE2 combines digital communication interfaces, USB, CAN, LIN, ADC, DAC, timers, DMA, PWM, watchdog, low-voltage detection, and other embedded peripherals in a compact 48-pin QFN package. Infineon lists the device as Active and Preferred, with a 2.7 V to 5.5 V operating voltage range.

With its Cortex-M3 processing core, integrated analog peripherals, USB and automotive-oriented communication interfaces, the CY9BF521KQN-G-AVE2 is suitable for industrial control, embedded controllers, automotive electronics, motor control, measurement equipment, communication systems, and other embedded applications.

Key Features

• Arm Cortex-M3 32-bit RISC processor core

• CPU frequency up to 72 MHz

• 96 KB embedded Flash memory

• 16 KB SRAM

• Up to 35 general-purpose I/O pins

• Up to 14 channels of 12-bit ADC

• 2 × 10-bit DAC

• USB interface

• CAN bus interface

• LIN bus support

• I²C interface

• UART/USART interfaces

• CSIO serial communication interface

• DMA controller

• PWM functions

• Watchdog timer

• Low-voltage detection

• Power-on reset

• Internal oscillator

• External clock support

• Surface-mount QFN package

• Operating voltage from 2.7 V to 5.5 V

• Infineon PG-VQFN-48 package

• RoHS compliant and lead-free

• Active and Preferred product status

Technical Specifications

Infineon's official product page identifies the exact CY9BF521KQN-G-AVE2 as a PG-VQFN-48 / QFN-48 device, with a 2.7 V–5.5 V operating voltage range and 0°C to +70°C operating temperature specification. Third-party component data identifies the device as a 72 MHz Cortex-M3 MCU with 96 KB Flash, 16 KB RAM, 35 I/O, 14-channel 12-bit ADC and 2 × 10-bit DAC.

Note: Some distributor databases associate the broader CY9BF521 family with different package variants and wider temperature ratings. For the exact CY9BF521KQN-G-AVE2 ordering code, the Infineon product page should be treated as the primary source for package, operating temperature, and ordering information.

Communication & Connectivity

The CY9BF521KQN-G-AVE2 integrates multiple communication peripherals for embedded control and industrial communication applications.

Supported interfaces include:

• USB

• CAN Bus

• LIN Bus

• I²C

• UART / USART

• CSIO

• DMA-supported peripheral data transfer

The combination of CAN, LIN, USB, serial communication, and analog interfaces makes the CY9BF521KQN-G-AVE2 suitable for embedded controllers, automotive-oriented systems, industrial equipment, sensor interfaces, and communication devices.

Applications

The CY9BF521KQN-G-AVE2 is suitable for a wide range of embedded applications, including:

• Industrial Automation

• Embedded Control Systems

• Automotive Electronics

• Motor Control

• Sensor Systems

• Data Acquisition Equipment

• CAN-Based Control Systems

• LIN-Based Automotive Systems

• USB Embedded Devices

• Communication Equipment

• Measurement Instruments

• Consumer Electronics

• HVAC Controllers

• Smart Home Devices

• Power Management Systems

• Factory Automation

• Real-Time Embedded Systems

Benefits

The CY9BF521KQN-G-AVE2 combines a 72 MHz Arm Cortex-M3 core with 96 KB Flash and 16 KB SRAM, providing a practical balance between processing capability, memory capacity, and integrated peripherals.

Its integrated USB, CAN, LIN, I²C, UART/USART, ADC, DAC, DMA, PWM, watchdog, and low-voltage detection functions help reduce external component requirements and simplify embedded system designs.

The wide 2.7 V to 5.5 V supply range also provides flexibility when integrating the MCU into systems using different power architectures.

Packaging & Ordering Information

Infineon's official listing specifies PG-VQFN-48, QFN-48, tray packaging, MSL 3, pure tin lead finish, RoHS compliance, and active/preferred product status for the exact ordering code.

Datasheet

For complete electrical characteristics, pin configuration, memory organization, peripheral descriptions, absolute maximum ratings, timing specifications, and application information, please refer to the official Infineon documentation.

Datasheet: Official CY9BF521KQN-G-AVE2 Product Page – Infineon Technologies

The exact Infineon product page identifies CY9BF521KQN-G-AVE2 as part of the FM3 CY9BFx2xK/L/M family and provides the corresponding datasheet/documentation resources.

Frequently Asked Questions

What is CY9BF521KQN-G-AVE2?

CY9BF521KQN-G-AVE2 is a 32-bit microcontroller from Infineon's FM3 family, based on the Arm Cortex-M3 processor architecture.

What processor core does CY9BF521KQN-G-AVE2 use?

The CY9BF521KQN-G-AVE2 uses an Arm Cortex-M3 processor core with a maximum operating frequency of 72 MHz.

How much Flash memory does CY9BF521KQN-G-AVE2 have?

The device provides 96 KB of embedded Flash memory.

How much RAM does CY9BF521KQN-G-AVE2 have?

The device provides 16 KB of SRAM.

How many GPIO pins does CY9BF521KQN-G-AVE2 have?

The device provides up to 35 general-purpose I/O pins according to available component specifications.

What package is used for CY9BF521KQN-G-AVE2?

The exact CY9BF521KQN-G-AVE2 is supplied in an Infineon PG-VQFN-48 / QFN-48 package, with a 7 mm × 7 mm package footprint.

What is the operating voltage of CY9BF521KQN-G-AVE2?

The specified operating voltage range is 2.7 V to 5.5 V.

Does CY9BF521KQN-G-AVE2 support CAN and LIN?

Yes. The MCU supports CAN Bus and LIN Bus communication interfaces, making it suitable for embedded and automotive-oriented communication applications.

Does CY9BF521KQN-G-AVE2 support USB?

Yes. USB is included among the integrated connectivity features of this MCU family and exact device specifications.

How many ADC channels does CY9BF521KQN-G-AVE2 have?

Available component specifications identify up to 14 channels of 12-bit ADC for the CY9BF521KQN-G-AVE2.

What applications is CY9BF521KQN-G-AVE2 suitable for?

It can be used in industrial control, automotive electronics, CAN/LIN systems, motor control, USB devices, sensor systems, measurement equipment, communication equipment, and other embedded applications.

Is CY9BF521KQN-G-AVE2 still an active product?

Yes. Infineon's official product page currently identifies the exact part number as Active and Preferred.

Can I request bulk pricing for CY9BF521KQN-G-AVE2?

Yes. Contact our sales team with your required quantity and delivery destination to request current pricing, stock availability, MOQ, lead time, and shipping options.

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