ATMEGA328P-MMH
Microchip TechnologyATMEGA328P-MMH is the 28-pad QFN/MLF code for the Microchip ATmega328P — the 8-bit AVR behind the Arduino Uno (32 KB flash, 2 KB SRAM, 1 KB EEPROM, up to 20 MHz, 1.8 V to 5.5 V) in a 4 x 4 x 1.0 mm leadless package with NiPdAu finish, rated -40 °C to +85 °C. It is the footprint for designs that outgrew the PDIP-28 (ATmega328P-PU) or TQFP-32 (ATMEGA328P-AU) listings on this site but need the same silicon and code base in a low-profile surface-mount outline. Selection advice: the Microchip ordering table also lists a 32-pad QFN (MU) and -40 °C to +105 °C grades (AN/MN/PN) — match the full code, because pad count and temperature grade differ while the part name does not. Microchip lists the ATmega328P as Not Recommended for New Designs — for new products migrate to a current AVR; for production and legacy builds we source on the exact code.
- MPN
- ATMEGA328P-MMH
- Manufacturer
- Microchip Technology
- Family
- 8-bit microcontroller
- Package
- QFN-28
- Manufacturer channel coverage
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