SMD IC ATMEGA128RFA1-ZU

Overview

The ATMEGA128RFA1-ZU is an 8-bit AVR RISC microcontroller with integrated RF capabilities, manufactured by Microchip Technology. It features a 16 MHz maximum clock frequency and operates within a supply voltage range of 1.8V to 3.6V. The device includes 128KB of in-system self-programmable Flash memory, 4KB EEPROM, and 16KB SRAM. It supports IEEE 802.15.4 protocols at 2.4GHz using O-QPSK modulation. The component is housed in a 64-pin QFN package (9x9mm) and offers 38 GPIOs with interfaces including I2C, SPI, USART, and JTAG.

Feature Summary

• Integrates an 8-bit AVR microcontroller core with a 2.4GHz RF transceiver supporting IEEE 802.15.4 standards
• Provides non-volatile memory including 128KB Flash, 4KB EEPROM, and 16KB SRAM for data storage
• Supports low-power operation with static architecture and on-chip hardware multipliers
• Includes comprehensive peripheral interfaces such as ADC, SPI, I2C, and USART for system connectivity

Applications

• IEEE 802.15.4 compliant wireless sensor networks
• Zigbee protocol implementation devices
• 6LoWPAN network nodes
• Low power home automation systems

Procurement Notes

Verify the specific suffix 'ZU' against official Microchip documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with the required operating temperature range and voltage levels. Confirm RoHS compliance status through current manufacturer datasheets before procurement.

Selection Notes

Select this component when a combined MCU and RF solution is required for 2.4GHz applications. Consider the 128KB Flash capacity for complex firmware requirements. Evaluate the 64-pin QFN footprint against PCB space constraints. Verify that the 16MHz processing speed meets real-time control demands.

Part Context

This part belongs to the ATmega128RF series of radio-frequency microcontrollers from Microchip. It combines the high-performance AVR 8-bit CPU with a robust 2.4GHz transceiver. The series is designed for low-cost, low-power wireless communication solutions requiring significant onboard processing capability alongside radio functions.

Replacement Considerations

Consult Microchip's official cross-reference tools for verified substitutes. Check for pin-compatible alternatives within the ATmegaRF family. Ensure any replacement maintains support for IEEE 802.15.4 and Zigbee protocols.