CYBL11171-56LQXI

RF Transceiver ICS Overview

The CYBL11171-56LQXI is a Bluetooth Low Energy (BLE) system-on-chip integrating an ARM Cortex-M0 core with a 2.4 GHz RF transceiver. It features 256 kB of program memory and 32 kB of data RAM, operating at a maximum clock frequency of 48 MHz. The device supports Bluetooth v4.2 protocols and functions within a supply voltage range of 1.9 V to 5.5 V. Packaged in a 56-pin UFQFN (7x7 mm) format, this component combines processing capabilities with wireless connectivity for embedded applications.

RF Transceiver ICS Feature Summary

• Integrates an ARM Cortex-M0 processor with a 2.4 GHz radio transceiver on a single chip
• Supports Bluetooth v4.2 protocol standards for low energy communication
• Provides substantial onboard storage with 256 kB program memory and 32 kB RAM

RF Transceiver ICS Applications

• Wearable health monitoring devices requiring compact form factors
• Smart home sensors and actuators utilizing BLE connectivity
• Industrial asset tracking tags and beacons

RF Transceiver ICS Procurement Notes

This component is officially classified as obsolete by Infineon Technologies. Procurement is restricted to remaining stock or secondary market channels only. Verify part authenticity carefully due to the end-of-life status. Ensure compatibility with existing designs before acquisition, as future supply availability cannot be guaranteed. Check specific ordering suffixes for package variations if available.

RF Transceiver ICS Selection Notes

Select this component for designs requiring integrated BLE and MCU functionality in a small footprint. The wide supply voltage range (1.9V–5.5V) offers flexibility in power domain design. Consider the 48 MHz processing speed for application complexity. Due to its obsolete status, evaluate alternative next-generation AIROC™ solutions for new production runs to ensure long-term supply chain stability.

RF Transceiver ICS Part Context

The CYBL11171-56LQXI belongs to Infineon’s earlier generation of Bluetooth LE microcontrollers. It serves as a predecessor to the modern AIROC™ CYBLE series. This part represents a converged solution combining traditional MCU architecture with wireless radio capabilities, targeting cost-sensitive applications where separate BLE modules were previously required.

RF Transceiver ICS Replacement Considerations

Publicly confirmed direct substitute part numbers are not explicitly listed in standard replacement matrices. Recommended alternatives include newer AIROC™ CYBLE-214015-01 series components. Verify pin-to-pin compatibility and software library support when migrating from this obsolete part to current Infineon BLE offerings.