ATMEGA328P-MMHR vs ATMEGA328-MMH Comparison
Detailed side-by-side comparison of ATMEGA328P-MMHR by Microchip Technology and ATMEGA328-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
ATMEGA328P-MMHR - 20MHz 32KB Flash 8-Bit MCU | Microchip
ATMEGA328P-MMHR ✓ ActiveMicrochip Technology
ATMEGA328-MMH - 8-Bit AVR MCU 20MHz 32KB Flash VQFN-28 | Microchip
ATMEGA328-MMH ✓ ActiveSpecification Comparison
| Parameter | ATMEGA328P-MMHR | ATMEGA328-MMH |
|---|---|---|
| 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 | 32 KB (16K x 16) |
| Program Memory Organization | 16K x 16 | — |
| SRAM | 2 KB | 2 KB |
| EEPROM | 1 KB | 1 KB |
| General-Purpose I/O Lines | 23 lines | — |
| General-Purpose Working Registers | 32 | — |
| ADC Resolution | 10-bit | 10-bit |
| ADC Channels | 6 channels | 8 |
| Timer/Counters | 3 | — |
| Serial Interfaces | 1 USART and 1 two-wire serial interface | — |
| Package | 28-pin VQFN, 4 x 4 mm | 28-VQFN (4x4 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Supply Voltage | 4.5 V to 5.5 V | — |
| Real-Time Counter | Integrated | — |
| PWM Support | Yes, timer/counter compare modes support PWM | — |
| Lifecycle Status | Active | Active |
| RoHS Status | unknown | Green (RoHS compliant per Mouser listing) |
| REACH Status | unknown | — |
| Core Processor | — | AVR |
| Core Size | — | 8-Bit |
| Speed | — | 20 MHz |
| Supply Voltage Range | — | 2.5 V to 5.5 V |
| General Purpose I/O | — | 23 |
| Timers | — | Two 8-bit, One 16-bit |
| Communication Interfaces | — | USART, SPI, I2C (Two-Wire) |
| Operating Temperature | — | [DATA_NEEDED: operating temperature range] |
| Packaging | — | Tray |