ATMEGA328-MMH vs ATMEGA328P-MMH Comparison
Detailed side-by-side comparison of ATMEGA328-MMH by Microchip Technology and ATMEGA328P-MMH 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
ATMEGA328-MMH - 8-Bit AVR MCU 20MHz 32KB Flash VQFN-28 | Microchip
ATMEGA328-MMH ✓ ActiveMicrochip Technology
ATMEGA328P-MMH - 20MHz 32KB 8-Bit AVR MCU | Microchip Technology
ATMEGA328P-MMH ✓ ActiveSpecification Comparison
| Parameter | ATMEGA328-MMH | ATMEGA328P-MMH |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Processor | AVR | — |
| Core Size | 8-Bit | — |
| Speed | 20 MHz | — |
| Flash Memory | 32 KB (16K x 16) | 32 KB |
| EEPROM | 1 KB | 1024 bytes |
| SRAM | 2 KB | 2 KB |
| Supply Voltage Range | 2.5 V to 5.5 V | — |
| General Purpose I/O | 23 | — |
| ADC Resolution | 10-bit | — |
| ADC Channels | 8 | — |
| Timers | Two 8-bit, One 16-bit | — |
| Communication Interfaces | USART, SPI, I2C (Two-Wire) | — |
| Package | 28-VQFN (4x4 mm) with exposed pad | 28-VQFN, 4 x 4 mm |
| Mounting Type | Surface Mount | Surface mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | — |
| RoHS Status | Green (RoHS compliant per Mouser listing) | — |
| Lifecycle Status | Active | — |
| Packaging | Tray | — |
| Product Type | — | 8-bit AVR RISC microcontroller |
| Maximum Clock Frequency | — | 20 MHz |
| Flash Organization | — | 16K x 16 bits |
| ISP Flash Read-While-Write | — | Supported |
| General-Purpose I/O Lines | — | 23 lines |
| General-Purpose Working Registers | — | 32 registers |
| Instruction Set | — | 131 powerful AVR instructions |
| Single-Clock-Cycle Execution | — | Most instructions |
| Serial Interfaces | — | I2C, SPI, and UART/USART |
| Package Pin Count | — | 28 pins |
| Operating Supply Voltage | — | 4.5 V to 5.5 V |
| Terminal Finish | — | NiPdAu |
| Green Compliance | — | Green |