ATMEGA328-PU vs ATMEGA328P-PU Comparison
Detailed side-by-side comparison of ATMEGA328-PU by Microchip Technology and ATMEGA328P-PU by Microchip Technology. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Microchip Technology
ATMEGA328P-PU - 8-bit AVR MCU 32KB Flash 28-PDIP | Microchip
ATMEGA328P-PU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA328-PU | ATMEGA328P-PU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Product Type | 8-bit AVR microcontroller | — |
| Maximum Clock Speed | 20 MHz | — |
| Flash Memory | 32 KB (16K x 16) | — |
| EEPROM Memory | 1 KB | — |
| SRAM | 2 KB | 2 KB |
| Architecture | AVR enhanced RISC | — |
| Package | 28-PDIP | 28-PDIP |
| Package Type | Through-hole DIP | — |
| I/O Ports | 32 I/O ports | — |
| Supply Voltage | 4.5 V to 5.5 V | — |
| Program Memory Type | In-system programmable flash | — |
| Programming | In-system programming | — |
| Instruction Execution | Single-clock-cycle execution for powerful instructions | — |
| Mounting Style | Through-hole | — |
| Device Class | General-purpose 8-bit microcontroller | — |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| RoHS Status | [DATA_NEEDED: RoHS status] | [DATA_NEEDED: RoHS status] |
| REACH Status | [DATA_NEEDED: REACH status] | — |
| Automotive Qualification | [DATA_NEEDED: AEC-Q100 qualification] | — |
| Core Architecture | — | 8-bit AVR RISC |
| Flash Program Memory | — | 32 KB (16K x 16) |
| EEPROM | — | 1 KB |
| Maximum Clock Frequency | — | 20 MHz |
| Typical Arduino Clock Frequency | — | 16 MHz |
| Supply Voltage Range | — | 4.5 V to 5.5 V |
| General Purpose I/O Lines | — | 23 |
| Working Registers | — | 32 general purpose |
| Instructions | — | 131 instructions, most single-cycle |
| Mounting Type | — | Through Hole |
| In-System Programming | — | Yes (ISP, read-while-write) |
| ADC | — | 10-bit |
| Product Series | — | AVR ATmega |
| Interface Peripherals | — | USART, SPI, TWI (I2C) |