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CYW43438KUBGT

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CYW43438KUBGT

IC RF TXRX+MCU BLE 63WLBGA

Manufacturer: Infineon Technologies

Categories: RF Transceiver ICs

Quality Control: Learn More

Infineon Technologies CYW43438KUBGT is a highly integrated wireless solution combining a Bluetooth v4.0 and 802.11b/g/n transceiver with an embedded MCU. Operating in the 2.4GHz band, this device supports data rates up to 54Mbps. It features a robust RF front-end with a transmit power of 21dBm and a receive sensitivity of -99dBm. The CYW43438KUBGT includes 640kB ROM and 512kB SRAM for application code and data. Connectivity is facilitated through I2S, SPI, and UART serial interfaces, along with 5 GPIO pins. This surface-mount component is supplied in a compact 63-WLBGA package, suitable for applications in industrial automation, consumer electronics, and IoT devices. Power consumption ranges from 37mA to 41mA during reception and 260mA to 320mA during transmission, with a supply voltage range of 1.2V to 3.3V and an operating temperature of -30°C to 70°C.

Additional Information

Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: 13 week(s)Product Status: Not For New DesignsPackaging: Tape & Reel (TR)Datasheet:
Technical Details:
PackagingTape & Reel (TR)
Package / Case63-UFBGA, WLBGA
Sensitivity-99dBm
Mounting TypeSurface Mount
Frequency2.4GHz
Memory Size640kB ROM, 512kB SRAM
TypeTxRx + MCU
Operating Temperature-30°C ~ 70°C
Voltage - Supply1.2V ~ 3.3V
Power - Output21dBm
Protocol802.11b/g/n, Bluetooth v4.0
Current - Receiving37mA ~ 41mA
Data Rate (Max)54Mbps
Current - Transmitting260mA ~ 320mA
Supplier Device Package63-WLBGA (2.87x4.87)
GPIO5
Modulation8DPSK, DQPSK, GFSK
RF Family/StandardBluetooth, WiFi
Serial InterfacesI2S, SPI, UART
ProgrammableNot Verified

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Infineon Technologies FAQs

Infineon Technologies manufactures a wide range of semiconductor components with a strong emphasis on power electronics, automotive systems, and security solutions.

Infineon’s core components include:

  • Power semiconductors (MOSFETs, IGBTs, SiC and GaN devices)
  • Microcontrollers (MCUs) for automotive and industrial applications
  • Analog and mixed-signal ICs
  • Sensors (including radar and environmental sensors)
  • Security and authentication ICs
  • Automotive semiconductors (powertrain, ADAS, and safety systems)
  • Wireless and connectivity solutions (Bluetooth, Wi-Fi, and RF)

Infineon specializes in energy-efficient power management, secure connectivity, and high-reliability automotive solutions.

Infineon serves industries that require power efficiency, system safety, and secure connectivity.

Infineon’s key industries include:

  • Automotive and electric vehicles (EVs)
  • Industrial automation and motor control
  • Renewable energy and power infrastructure
  • Consumer electronics and home appliances
  • Internet of Things (IoT) and smart devices
  • Security and identification (payments, access control)

These industries rely on Infineon for power efficiency, system protection, and secure semiconductor solutions.

Infineon is known for power semiconductor technologies, automotive microcontrollers, and security solutions.

Key Infineon product lines include:

  • AURIX - automotive microcontrollers for safety-critical applications
  • XMC - ARM-based microcontrollers for industrial applications
  • PSoC - programmable system-on-chip solutions (via Cypress acquisition)
  • CoolMOS - high-voltage power MOSFETs
  • OptiMOS - low-voltage power MOSFETs
  • CoolSiC - silicon carbide power devices for high-efficiency systems
  • EiceDRIVER - gate driver ICs for power semiconductors
  • OPTIGA - security solutions for authentication and IoT security
Frequently Asked Questions

As a full line supplier, we specialize in sourcing obsolete and hard to find electronic components for your projects.

After we receive your request submission, one of our account executives will reach out to your team to gather more information about your project requirements and ensure we tailor the order to your needs.

Once requirements such as date codes, quantities, target prices, testing requirements, and more are discussed, our purchasing team will secure stock through Microchip USA’s direct access to manufacturing partners’ excess inventory lists.

Our operations teams will handle logistics and fulfillment to ensure supply chain continuity, and our support team will provide clear communication throughout the process.

Our net terms for electronic component sourcing are flexible and vary by order. Our account executives will work with you to ensure our terms meet your company’s needs. We also offer scheduled shipments and inventory management solutions to ensure a steady supply of electronic components, maintain cash flow, and maximize warranty periods. We always offer a warranty on all tested parts. See our sales terms and conditions for more information.

We partner with industry-leading AS6171 & AS6081-certified third party testing labs to mitigate risk and support a wide array of end uses for your company’s requirements. Testing includes but isn’t limited to: Decapsulation & Internal Dye Verification. X-Ray Inspection & Analysis, External Visual Inspection, Surface Texture Analysis (SEM), and Electrical Pin Correlation.