ATMEGA328PB-AUR vs ATMEGA328P-AUR Comparison
Detailed side-by-side comparison of ATMEGA328PB-AUR by Microchip Technology and ATMEGA328P-AUR 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
ATMEGA328P-AUR - 8-bit AVR MCU, 32KB Flash, 20MHz, TQFP-32 | Microchip
ATMEGA328P-AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA328PB-AUR | ATMEGA328P-AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.31 | $2.18 |
| Core Architecture | 8-bit AVR RISC | AVR 8-bit RISC |
| Maximum Clock Frequency | 20 MHz | 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 | 32 x 8-bit |
| Throughput | Up to 1 MIPS per MHz (single-cycle instructions) | 20 MIPS at 20 MHz |
| Timers | 2 x 8-bit and 2 x 16-bit timer/counters | 2 x 8-bit, 1 x 16-bit |
| Communication Interfaces | 2 x SPI, 2 x TWI (I2C), USART | USART, SPI, I2C (TWI) |
| ADC | 10-bit ADC | 10-bit, up to 8 channels |
| Package | 32-TQFP (7x7 mm) | 32-pin TQFP, 7x7 mm, 0.8 mm pitch |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (AUR 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 |
| Program Memory (Flash) | — | 32 KB |
| Supply Voltage Range | — | 1.8 V to 5.5 V |
| Operating Temperature Range | — | -40 C to +85 C (Industrial) |
| I/O Pins | — | 23 programmable |
| PWM Channels | — | 6 |
| Instruction Set | — | 131 instructions, mostly single-cycle |
| Watchdog Timer | — | Yes, with separate on-chip oscillator |
| Brown-out Detection | — | Yes |
| Power-Saving Modes | — | 6 software-selectable |
| MSL Level | — | 3 (168 hours) |