ATMEGA1284P in ATmega Family
The ATMEGA1284P is a high-performance, low-power 8-bit AVR RISC-based microcontroller manufactured by Microchip Technology. It serves as a significant upgrade over the ubiquitous ATmega328P, offering four times the Flash memory and eight times the SRAM. Designed for applications requiring more complex software stacks or larger data buffers than entry-level AVRs, it remains compatible with the standard AVR instruction set and is widely supported by the Arduino development ecosystem and professional toolchains alike.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | Package | Stock |
|---|---|---|
| ATMEGA1284P-PU (Microchip Technology) | DIP-40 | 7,117 |
| ATMEGA1284P-AU (Microchip Technology) | TQFP-44 | 20,816 |
The sub-family variants primarily differ in physical packaging and thermal ratings. The ATMEGA1284P-PU is provided in a 40-pin PDIP for through-hole prototyping, while the ATMEGA1284P-AU and ATMEGA1284P-MU utilize TQFP and VQFN packages respectively for surface-mount designs. While all variants share the same 128KB Flash and 16KB SRAM architecture, some specific part numbers may differ in their lead-free composition or operating temperature ranges for industrial versus commercial use.
