ATMEGA325PA-AUR vs ATMEGA328-AU Comparison
Detailed side-by-side comparison of ATMEGA325PA-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
ATMEGA325PA-AUR - 8-bit AVR MCU 32KB Flash 20MHz | Microchip
ATMEGA325PA-AUR ✓ ActiveMicrochip Technology
ATMEGA328-AU - 8-bit AVR MCU 20MHz 32KB Flash TQFP-32 | Microchip (Tape & Reel)
ATMEGA328-AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA325PA-AUR | ATMEGA328-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.90 | $1.65 |
| Core Architecture | 8-bit AVR RISC | — |
| Flash Program Memory | 32 KB (16K x 16) | — |
| SRAM | 2 KB | 2 KB |
| EEPROM | 1 KB | 1 KB |
| Maximum Clock Frequency | 20 MHz | — |
| Maximum Throughput | 20 MIPS at 20 MHz | — |
| Supply Voltage Range | 1.8 V to 5.5 V | 2.5 V to 5.5 V |
| ADC Resolution | 10-bit | 10-bit |
| ADC Channels | 8-channel | — |
| Debug / Boundary Scan | JTAG interface for on-chip debug | — |
| Low Power Technology | picoPower | — |
| I/O Ports | 32 I/O | — |
| Package | 64-TQFP (14x14 mm) | 32-TQFP (7x7 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (R suffix) | Tape & Reel (R suffix) |
| Temperature Grade | Industrial (IND) | — |
| Life Cycle Stage | Active | — |
| RoHS Status | Green / RoHS compliant | 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 |
| Number of ADC Channels | — | 8 (TQFP-32) |
| Timers/Counters | — | 2 x 8-bit, 1 x 16-bit |
| Communication Interfaces | — | USART, SPI, TWI (I2C) |
| Operating Temperature | — | -40C to +85C |
| Programmability | — | In-System Programmable (ISP), read-while-write |