ATMEGA328PB-MU vs ATMEGA168PA-MU Comparison
Detailed side-by-side comparison of ATMEGA328PB-MU by Microchip Technology and ATMEGA168PA-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 ✓ ActiveMicrochip Technology
ATMEGA168PA-MU - 8-bit AVR MCU 16KB 20MHz VQFN-32 | Microchip
ATMEGA168PA-MU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA328PB-MU | ATMEGA168PA-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | AVR 8-bit RISC | — |
| Core Size | 8-Bit | 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) | — |
| Package | 32-VFQFN (5x5 mm) | 32-VQFN (5x5 mm, 0.5 mm pitch, MLF-32) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C |
| Supply Voltage | [DATA_NEEDED: VCC range] | — |
| ADC Resolution | 10-bit | 10-bit |
| Timers | 2 x 8-bit, 1 x 16-bit | Two 8-bit, One 16-bit |
| Communication Interfaces | USART, 2 x SPI, 2 x I2C (TWI) | I2C, SPI, USART |
| 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) | Compliant (GREEN) |
| Core Processor | — | AVR 8-bit RISC |
| Speed | — | 20 MHz |
| Flash Memory | — | 16 KB (8K x 16) |
| EEPROM | — | 512 B |
| SRAM | — | 1 KB |
| Supply Voltage Range | — | 1.8 V to 5.5 V |
| Number of I/O | — | 23 |
| Number of ADC Channels | — | 6 |
| Peripherals | — | Brown-out Detect/Reset, POR, PWM, WDT |
| Data Bus Width | — | 8 Bit |
| Oscillator Type | — | Internal |