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ATMEGA1284P-MU

MCHPATMEGA1284P-MU

Microchip Technology
Higher RAM/flash density than smaller AVRs with a middle ground of I/O count for projects between 328P and 2560.
NRND1,958 in stock
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Overview

The ATMEGA1284P-MU is a high-performance, low-power 8-bit AVR RISC-based microcontroller featuring 128KB ISP flash memory and a substantial 16KB of SRAM. It serves as a density-optimized bridge between the standard ATmega328P and the high-pin-count ATmega2560, offering significantly more RAM for data-intensive 8-bit applications without the footprint of a 100-pin package.

Why Choose This Part

The primary advantage is the 16KB of SRAM, which is four times the capacity of the ATmega1280 and eight times that of the ATmega328P. It offers a perfect middle ground for engineers who need more memory for buffers or libraries but want to avoid the board space and routing complexity of 100-pin TQFP packages.

Applications

Data Logging
Utilizes the 16KB SRAM and 4KB EEPROM to buffer sensor data and manage larger file system overheads like FAT32 on SD cards.
Retro Gaming and Emulation
The increased RAM and 128KB flash allow for more complex game logic and larger sprite buffers than standard 8-bit MCUs.
Network Protocol Stacks
Provides enough memory to run lightweight TCP/IP or complex wireless mesh stacks while maintaining a small VQFN footprint.
Industrial Controllers
The 20 MHz clock speed and 32 general-purpose registers support real-time monitoring and control tasks with a 2-cycle multiplier.

Getting Started

Development is streamlined using the Microchip Studio (formerly Atmel Studio) or the Arduino IDE via the 'MightyCore' third-party hardware package. For hardware debugging, the device supports the JTAG interface for on-chip programming and emulation using an Atmel-ICE or similar programmer.

ATMEGA1284P Family

Part NumberDifferenceStock
ATMEGA1284P-AU TQFP 20,816

Also Consider

ATmega2560 MCHPMicrochip Technology - Choose this if your project requires significantly more I/O pins and double the flash memory capacity.
ATmega328P MCHPMicrochip Technology - A more cost-effective and smaller alternative if your code and RAM requirements fit within 32KB and 2KB respectively.
SAM D21G18A MCHPMicrochip Technology - A modern 32-bit ARM Cortex-M0+ alternative providing higher performance and more peripherals at a similar power profile.

Categories

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