NRF51802-QCAA-T

RF Transceiver ICS Overview

The NRF51802-QCAA-T is a Bluetooth Low Energy transceiver integrated circuit from the nRF51 series, manufactured by Nordic Semiconductor. It operates at 2.4 GHz with GFSK modulation and supports Bluetooth v4.1 protocols. The device features 256 kB of flash memory and 16 kB of RAM, providing sufficient storage for application code and data. It includes a high-performance radio capable of up to 4 dBm output power and -94 dBm sensitivity. The chip integrates an ARM Cortex-M0 processor and multiple serial interfaces including I2C, SPI, UART, and USB. It is housed in a compact 32-VFQFN package with dimensions of 5x5 mm.

RF Transceiver ICS Feature Summary

• Integrated ultra-low power 2.4 GHz radio supporting Bluetooth Low Energy v4.1
• On-chip ARM Cortex-M0 processor with 256 kB flash and 16 kB RAM
• Comprehensive peripheral set including GPIO, ADC, and multiple communication interfaces
• Compact 32-pin QFN package designed for space-constrained applications

RF Transceiver ICS Applications

• Wearable health and fitness devices
• Smart home sensors and actuators
• Beacon and proximity tracking systems
• Remote control and toy applications

RF Transceiver ICS Procurement Notes

Verify the suffix 'R7' indicates tape and reel packaging versus 'T' for tray when sourcing equivalents. Confirm RoHS3 compliance status matches current regulatory requirements. Ensure the 32-VFQFN footprint aligns with existing PCB layout constraints. Check lead times as standard delivery periods may vary based on manufacturing capacity and regional demand fluctuations.

RF Transceiver ICS Selection Notes

Choose this model for designs requiring a balance of memory capacity and small form factor. The 32-pin package offers fewer GPIOs compared to the 48-pin variant, suitable for simpler peripherals. Consider the 256 kB flash size for firmware complexity. Evaluate power consumption profiles against battery life requirements for portable implementations.

RF Transceiver ICS Part Context

This component belongs to the nRF51 series of system-on-chips, which are widely used in Bluetooth Low Energy applications. It shares architectural similarities with other nRF51 variants like the nRF51822 but differs in package type and pin count. The series is known for its low power consumption and integration of essential IoT connectivity features into a single silicon solution.

RF Transceiver ICS Replacement Considerations

NRF51802-QFAA-T: Offers identical electrical specifications and functionality but utilizes a 48-pin VFQFN package instead of the 32-pin version. Requires PCB layout modification due to different pinout and physical dimensions.