ATMEGA328PB in ATmega Family
The ATmega328PB is an enhanced 8-bit AVR RISC-based microcontroller sub-family manufactured by Microchip Technology. It serves as an evolutionary upgrade to the classic ATmega328P, maintaining architectural compatibility while introducing additional peripheral sets and hardware capabilities. Optimized for low-power operation and cost-efficiency, the ATmega328PB is widely utilized in industrial control, sensor nodes, and consumer electronics where efficient 8-bit processing and extensive I/O multiplexing are required for compact embedded designs.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | Package | Temp Range | Stock |
|---|---|---|---|
| ATMEGA328PB-MU (Microchip Technology) | VFQFN-32 | -40degC ~ 85degC (.. | 17,627 |
| ATMEGA328PB-MNR (Microchip Technology) | VFQFN-32 | -40degC ~ 105degC .. | 21,596 |
| ATMEGA328PB-ANR (Microchip Technology) | TQFP-32 | -40degC ~ 105degC .. | 5,689 |
| ATMEGA328PB-AU (Microchip Technology) | TQFP-32 | -40degC ~ 85degC (.. | 17,365 |
| ATMEGA328PB-AUR (Microchip Technology) | TQFP-32 | -40degC ~ 85degC (.. | 9,665 |
Variants within the ATmega328PB sub-family are primarily distinguished by their packaging options and environmental certifications. The 'AU' and 'AUR' suffixes denote 32-lead TQFP packages, while 'MU' and 'MNR' represent the smaller 32-pad VFQFN footprints. Further distinctions include shipping methods, such as Tray versus Tape and Reel (R), and specialized certifications like Functional Safety (FuSa) readiness found in 'MNR' and 'ANR' variants for high-reliability applications.
