ATMEGA328-MUR vs ATMEGA328PB-MU Comparison
Detailed side-by-side comparison of ATMEGA328-MUR by Microchip Technology and ATMEGA328PB-MU 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
ATMEGA328PB-MU - 8-Bit AVR MCU 20MHz 32KB Flash | Microchip
ATMEGA328PB-MU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA328-MUR | ATMEGA328PB-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Processor | AVR 8-bit RISC | — |
| Core Size | 8-Bit | 8-Bit |
| Speed | 20 MHz | — |
| Flash Memory Size | 32 KB (16K x 16) | — |
| SRAM Size | 2 KB | 2 KB |
| EEPROM Size | 1 KB | 1 KB |
| Supply Voltage Range | 2.5 V to 5.5 V (speed dependent) | — |
| Number of I/O | 23 | — |
| ADC Resolution | 10 bit | 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, 2 x SPI, 2 x I2C (TWI) |
| Timers | 2 x 8-bit, 1 x 16-bit | 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) | -40C to +85C (Industrial) |
| Package | 32-VQFN (5x5 mm) Exposed Pad | 32-VFQFN (5x5 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (R suffix), Green | — |
| Lifecycle Stage | ACTIVE | — |
| Core Architecture | — | AVR 8-bit RISC |
| Maximum Clock Frequency | — | 20 MHz |
| Program Memory Size | — | 32 KB (16K x 16) FLASH |
| Performance | — | Approx. 1 MIPS per MHz |
| I/O Count | — | 27 GPIO (incl. PORTE [3:0] on QFN) |
| Supply Voltage | — | [DATA_NEEDED: VCC range] |
| Low Power Technology | — | picoPower, multiple sleep modes |
| Programming | — | ISP, debugWIRING, self-programming boot loader |
| Safety Qualification | — | Functional Safety (FuSa) supported per DigiKey |
| RoHS Status | — | Compliant (GREEN package per FindIC) |