ATMEGA328-MUR vs ATMEGA328P-MUR Comparison
Detailed side-by-side comparison of ATMEGA328-MUR by Microchip Technology and ATMEGA328P-MUR 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-MUR - AVR 8-Bit MCU 32KB 20MHz VQFN-32 | Microchip
ATMEGA328-MUR ✓ ActiveMicrochip Technology
ATMEGA328P-MUR - 8-bit AVR MCU 20MHz 32KB Flash VQFN-32 (Tape & Reel)
ATMEGA328P-MUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA328-MUR | ATMEGA328P-MUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Processor | AVR 8-bit RISC | — |
| Core Size | 8-Bit | — |
| Speed | 20 MHz | — |
| Flash Memory Size | 32 KB (16K x 16) | — |
| SRAM Size | 2 KB | — |
| EEPROM Size | 1 KB | — |
| Supply Voltage Range | 2.5 V to 5.5 V (speed dependent) | — |
| Number of I/O | 23 | — |
| ADC Resolution | 10 bit | — |
| ADC Channels | 8 (6 external + 2 extra on QFN) | — |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, debugWIRE | — |
| Communication Interfaces | USART, SPI, I2C (TWI) | USART, SPI (master/slave), TWI (I2C-compatible) |
| Timers | 2 x 8-bit, 1 x 16-bit | — |
| Instructions | 131 instructions, mostly single-cycle | — |
| Throughput | Up to 20 MIPS at 20 MHz | — |
| Operating Temperature | -40C to +85C (Industrial) | -40 C to +85 C (industrial) |
| Package | 32-VQFN (5x5 mm) Exposed Pad | 32-pin VQFN (5x5 mm, exposed pad) |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (R suffix), Green | — |
| Lifecycle Stage | ACTIVE | — |
| Core Architecture | — | AVR 8-bit RISC |
| Maximum Clock Speed | — | 20 MHz |
| Instruction Throughput | — | 20 MIPS |
| Flash Program Memory | — | 32 KB (16 K x 16) |
| SRAM | — | 2 KB |
| EEPROM | — | 1 KB |
| Operating Voltage Range | — | 1.8 V to 5.5 V |
| General-Purpose I/O | — | 23 lines |
| ADC | — | 10-bit, 8 channels (6 + 2 dedicated QFN/VFP) |
| Timers/Counters | — | 2 x 8-bit, 1 x 16-bit |
| On-chip Oscillator | — | Internal 8 MHz calibrated, 128 kHz |
| Programming Interface | — | ISP, debugWIRE, TPI |
| RoHS Status | — | Compliant |