ATMEGA328PB-AUR vs ATMEGA328-AU Comparison
Detailed side-by-side comparison of ATMEGA328PB-AUR by Microchip Technology and ATMEGA328-AU 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-AUR - 8-Bit AVR MCU 32KB Flash 20MHz TQFP-32 | Microchip
ATMEGA328PB-AUR ✓ ActiveMicrochip Technology
ATMEGA328-AU - 8-bit AVR MCU 20MHz 32KB Flash TQFP-32 | Microchip (Tape & Reel)
ATMEGA328-AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA328PB-AUR | ATMEGA328-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.31 | $1.65 |
| Core Architecture | 8-bit AVR RISC | — |
| Maximum Clock Frequency | 20 MHz | — |
| Flash Program Memory | 32 KB (16K x 16) | — |
| SRAM | 4 KB | 2 KB |
| EEPROM | 2 KB | 1 KB |
| General Purpose I/O | 27 I/O lines | — |
| Working Registers | 32 x 8-bit | — |
| Throughput | Up to 1 MIPS per MHz (single-cycle instructions) | — |
| Timers | 2 x 8-bit and 2 x 16-bit timer/counters | — |
| Communication Interfaces | 2 x SPI, 2 x TWI (I2C), USART | USART, SPI, TWI (I2C) |
| ADC | 10-bit ADC | — |
| Package | 32-TQFP (7x7 mm) | 32-TQFP (7x7 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (AUR suffix) | Tape & Reel (R suffix) |
| Temperature Grade | Industrial (per Mouser listing) | — |
| Operating Supply Voltage | [DATA_NEEDED: Operating Supply Voltage Range] | — |
| Special Features | picoPower technology, Functional Safety (FuSa) | — |
| RoHS Status | [DATA_NEEDED: RoHS Compliance Status] | Compliant |
| Core Processor | — | AVR 8-bit RISC |
| Core Size | — | 8-bit |
| Speed | — | 20 MHz |
| Flash Memory | — | 32 KB (16K x 16) |
| Number of I/O | — | 23 |
| ADC Resolution | — | 10-bit |
| Number of ADC Channels | — | 8 (TQFP-32) |
| Timers/Counters | — | 2 x 8-bit, 1 x 16-bit |
| Supply Voltage Range | — | 2.5 V to 5.5 V |
| Operating Temperature | — | -40C to +85C |
| Programmability | — | In-System Programmable (ISP), read-while-write |