ATMEGA328PB-MU vs ATMEGA328P-MU Comparison
Detailed side-by-side comparison of ATMEGA328PB-MU by Microchip Technology and ATMEGA328P-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
ATMEGA328PB-MU - 8-Bit AVR MCU 20MHz 32KB Flash | Microchip
ATMEGA328PB-MU β ActiveSpecification Comparison
| Parameter | ATMEGA328PB-MU | ATMEGA328P-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Nrnd |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.19 | $1.28 |
| Core Architecture | AVR 8-bit RISC | β |
| Core Size | 8-Bit | 8-bit |
| Maximum Clock Frequency | 20 MHz | β |
| Program Memory Size | 32 KB (16K x 16) FLASH | 32 KB (16K x 16) Flash |
| SRAM Size | 2 KB | β |
| EEPROM Size | 1 KB | 1 KB |
| Performance | Approx. 1 MIPS per MHz | β |
| I/O Count | 27 GPIO (incl. PORTE [3:0] on QFN) | β |
| Package | 32-VFQFN (5x5 mm) | 32-VQFN (5x5 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C |
| Supply Voltage | [DATA_NEEDED: VCC range] | β |
| ADC Resolution | 10-bit | 10-bit |
| Timers | 2 x 8-bit, 1 x 16-bit | 2 x 8-bit, 1 x 16-bit |
| Communication Interfaces | USART, 2 x SPI, 2 x I2C (TWI) | USART, SPI, I2C (TWI) |
| Low Power Technology | picoPower, multiple sleep modes | β |
| Programming | ISP, debugWIRING, self-programming boot loader | ISP, debugWIRE |
| Safety Qualification | Functional Safety (FuSa) supported per DigiKey | β |
| RoHS Status | Compliant (GREEN package per FindIC) | β |
| Core Processor | β | AVR 8-bit RISC |
| Speed | β | 20 MHz |
| RAM Size | β | 2 KB |
| Number of I/O | β | 23 |
| Supply Voltage Range | β | 1.8 V to 5.5 V |
| ADC Channels | β | 8 (6 external + 2 multiplexed) |
| Peripherals | β | Brown-out Detect/Reset, POR, PWM, WDT |
| Oscillator Type | β | Internal |