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ATMEGA128RFA1

MCHPATMEGA128RFA1

Microchip Technology
Older AVR + integrated 802.15.4 radio option with similar integration for smaller-flash applications.
Active756 in stock

Overview

The ATMEGA128RFA1 is a highly integrated single-chip solution that combines an 8-bit AVR microcontroller with a 2.4GHz IEEE 802.15.4 compliant radio transceiver. It features 128KB of Flash memory and 16KB of RAM, designed specifically for low-power wireless applications requiring a compact footprint and simplified RF design.

Why Choose This Part

This SoC eliminates the need for an external SPI-connected radio, reducing PCB area and complexity while lowering overall system power consumption. The integrated 128-byte frame buffer and automatic CRC-16 computation offload critical timing tasks from the AVR core, ensuring reliable packet handling at 16MHz.

Applications

Zigbee and Thread Networking
Ideal for building robust mesh networks in home automation and commercial lighting systems using 802.15.4 based protocols.
Wireless Sensor Nodes
Utilizes integrated hardware-assisted MAC and AES security to efficiently process and transmit sensor data with minimal CPU overhead.
Industrial Control
Provides reliable short-range wireless communication for monitoring industrial equipment in environments where wiring is impractical.

Getting Started

Developers can use the Microchip Studio IDE and the AVR GCC toolchain for firmware development. Hardware evaluation is typically performed using the Atmel STK600 or specific wireless kits like the ATMEGA128RFA1-EK, while programming is handled via standard AVR ISP or JTAG interfaces.

ATMEGA128 Family

Part NumberDifferenceStock
ATMEGA128RFR2 R2
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