ATMEGA328P-MUR vs ATMEGA328PB-MU Comparison
Detailed side-by-side comparison of ATMEGA328P-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
ATMEGA328P-MUR - 8-bit AVR MCU 20MHz 32KB Flash VQFN-32 (Tape & Reel)
ATMEGA328P-MUR NrndMicrochip Technology
ATMEGA328PB-MU - 8-Bit AVR MCU 20MHz 32KB Flash | Microchip
ATMEGA328PB-MU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA328P-MUR | ATMEGA328PB-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | NRND | Active |
| Core Architecture | AVR 8-bit RISC | 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 | — |
| Communication Interfaces | USART, SPI (master/slave), TWI (I2C-compatible) | USART, 2 x SPI, 2 x I2C (TWI) |
| On-chip Oscillator | Internal 8 MHz calibrated, 128 kHz | — |
| Package | 32-pin VQFN (5x5 mm, exposed pad) | 32-VFQFN (5x5 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40 C to +85 C (industrial) | -40C to +85C (Industrial) |
| Programming Interface | ISP, debugWIRE, TPI | — |
| RoHS Status | Compliant | Compliant (GREEN package per FindIC) |
| Core Size | — | 8-Bit |
| Maximum Clock Frequency | — | 20 MHz |
| Program Memory Size | — | 32 KB (16K x 16) FLASH |
| SRAM Size | — | 2 KB |
| EEPROM Size | — | 1 KB |
| Performance | — | Approx. 1 MIPS per MHz |
| I/O Count | — | 27 GPIO (incl. PORTE [3:0] on QFN) |
| Supply Voltage | — | [DATA_NEEDED: VCC range] |
| ADC Resolution | — | 10-bit |
| Timers | — | 2 x 8-bit, 1 x 16-bit |
| Low Power Technology | — | picoPower, multiple sleep modes |
| Programming | — | ISP, debugWIRING, self-programming boot loader |
| Safety Qualification | — | Functional Safety (FuSa) supported per DigiKey |