CYW20737S

RF Transceiver ICS Overview

The CYW20737S is a single-chip RF transceiver and microcontroller unit (MCU) designed for Bluetooth Low Energy applications. It integrates a 2.4 GHz radio with an ARM Cortex-M3 core, operating at a maximum clock frequency of 24 MHz. The device features 320 kB of ROM and 60 kB of RAM. It supports standard wireless interfaces including I2C, SPI, and UART. The component operates within a supply voltage range of 1.2 V to 3.8 V and functions reliably across a temperature range of -30°C to +85°C. It is housed in a 48-TFLGA package.

RF Transceiver ICS Feature Summary

• Integrates a 2.4 GHz transceiver with an ARM Cortex-M3 MCU core
• Supports Bluetooth v4.0 protocol with GFSK modulation
• Includes serial communication interfaces such as I2C, SPI, and UART

RF Transceiver ICS Applications

• Bluetooth Low Energy sensor nodes
• Wireless peripheral devices
• IoT connectivity modules

RF Transceiver ICS Procurement Notes

Verify the current lifecycle status before integration, as this component may be classified as Not Recommended for New Designs or End-of-Life. Confirm availability through authorized Infineon distributors, as stock levels fluctuate. Ensure the specific 48-TFLGA package variant matches your PCB footprint requirements. Cross-reference the datasheet revision to confirm pinout compatibility with existing designs.

RF Transceiver ICS Selection Notes

Select this model when a combined RF and MCU solution is required for space-constrained Bluetooth applications. The integrated architecture reduces external component count compared to discrete solutions. Consider the 48-pin LGA package size against available board real estate. Evaluate the 24 MHz processing speed against application latency requirements. Verify that the 1.2 V logic level compatibility aligns with the host system's I/O voltages.

RF Transceiver ICS Part Context

This part belongs to the WICED series of wireless microcontrollers from Infineon Technologies. It represents a consolidation of radio and processing capabilities into a single silicon die. The CYW20737S serves as a foundational component for low-power wireless connectivity solutions, distinct from higher-performance variants in the broader CYW207xx family.

RF Transceiver ICS Replacement Considerations

Publicly confirmed substitute part numbers are not explicitly listed in the provided documentation. Check official Infineon replacement guides for direct pin-to-pin compatible alternatives within the CYW2073x family.