CY8C4247LQI-BL453

Overview

The Infineon CY8C4247LQI-BL453 is a PSoC 4 MCU with AIROC Bluetooth LE, based on the ARM Cortex-M0 CPU. It features up to 256 KB of Flash and 32 KB of SRAM. The device integrates a 2.4-GHz RF transceiver supporting Bluetooth LE 4.2, with an output power range of -18 dBm to +3 dBm and RX sensitivity of -89 dBm. Key peripherals include a 12-bit SAR ADC operating at 1 Msps, four opamps, two low-power comparators, and four TCPWM blocks. It offers up to 36 programmable GPIOs in a 7 mm x 7 mm 56-pin QFN package.

Feature Summary

• Integrates an ARM Cortex-M0 processor with a hardware multiplier and DMA engine for efficient code execution.
• Includes an integrated Bluetooth LE radio subsystem with digital PHY and link-layer engine for wireless connectivity.
• Features reconfigurable analog blocks including opamps, comparators, and a high-speed SAR ADC.
• Supports capacitive sensing (CAPSENSE) and segment LCD drive capabilities for user interface applications.

Applications

• Bluetooth Low Energy wearable devices
• Smart home sensors and actuators
• Industrial wireless monitoring nodes
• Medical telemetry devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notifications, as this specific part number may be discontinued. Ensure ordering suffixes match required packaging and temperature grades. Request official datasheets and application notes for design integration validation.

Selection Notes

Select this model when a combination of BLE connectivity and programmable analog/digital logic is required. Compare memory sizes against other CY8C42xx variants if less storage is needed. Consider package availability, as the QFN-56 form factor is specified. Evaluate power consumption requirements across active and sleep modes relative to system battery life goals.

Part Context

This component belongs to the PSoC 4 CY8C4xxx-BL family, which combines standard microcontroller capabilities with Bluetooth LE radio functions. It utilizes the PSoC Creator IDE for schematic-based hardware configuration. The architecture supports seamless migration from previous generations while offering enhanced analog programmability and wireless integration in a single chip.

Replacement Considerations

Infineon lists CY8C4248LQI-BL553 as a potential replacement for this discontinued part. Verify pin compatibility and feature parity before substitution. Consult the EOL notification document for official transition guidance and alternative part recommendations.

FAQ

What is the maximum clock frequency of the CPU?

The ARM Cortex-M0 CPU operates at a maximum frequency of 48 MHz.

Does the device support capacitive sensing?

Yes, it includes Capacitive Sigma-Delta (CSD) technology with automatic hardware tuning (SmartSense).

What is the operating voltage range?

The device operates between 1.71 V and 5.5 V without the radio, and 1.9 V to 5.5 V with the radio enabled.