ATmega328P-PU — 8-Bit AVR Microcontroller
Build, maintain and repair compatible embedded circuits with the Microchip ATmega328P-PU. The 28-pin PDIP through-hole package suits breadboards, IC sockets and compatible PCBs.
Key Specifications
| Manufacturer / Part Number | Microchip / ATmega328P-PU |
|---|---|
| Architecture / Package | 8-bit AVR RISC / 28-pin PDIP, through-hole |
| Memory | 32 KB Flash, 2 KB SRAM and 1 KB EEPROM |
| Supply Voltage | 1.8–5.5 V; allowable clock speed depends on supply voltage |
| Clock Limits | Up to 4 MHz at 1.8 V; 10 MHz at 2.7 V; 20 MHz at 4.5 V. See the datasheet for the full operating limits. |
| Analog Inputs | 6-channel, 10-bit ADC in this PDIP package |
| Interfaces | USART, SPI and two-wire serial interface (TWI) |
| Timers / PWM | Two 8-bit timers, one 16-bit timer and six PWM channels |
| Quantity Supplied | 1 IC per ordered unit |
Check Before Ordering
- Programming: A preloaded bootloader or application firmware is not specified. Confirm any programming requirement before ordering.
- Package and compatibility: Check your PCB footprint, pinout, supply, clock and firmware. This listing is for ATmega328P-PU, not ATmega328PB or a surface-mount version.
- Included: The IC only. A development board, socket, crystal and programmer are not included.
- New designs: Microchip currently lists ATmega328P as Not Recommended for New Designs (NRND). Review lifecycle requirements before choosing it for a new design.
Manufacturer Documentation
Microchip Product Information · ATmega328/P Datasheet (PDF)
Need a Larger Quantity or Programming?
Use Add to Quote on this page or contact us with your quantity and requirements. We will confirm availability, price and any programming scope before you order.
Price is per IC and excludes GST. Applicable GST and shipping are calculated at checkout. Product image is enhanced for presentation; markings may vary by batch.
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