ATMEGA325A-AU vs ATMEGA329A-AU Comparison
Detailed side-by-side comparison of ATMEGA325A-AU by Microchip Technology and ATMEGA329A-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
ATMEGA325A-AU - AVR 8-bit MCU 32KB Flash 20MHz 64TQFP | Microchip
ATMEGA325A-AU ✓ ActiveMicrochip Technology
ATMEGA329A-AU - 32KB AVR MCU, 20MHz, TQFP-64 | Microchip
ATMEGA329A-AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA325A-AU | ATMEGA329A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.12 | $3.31 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Flash Memory | 32 KB (16K x 16) ISP Flash with read-while-write | 32 KB ISP Flash (16K x 16) with read-while-write |
| SRAM | 2 KB | 2 KB |
| EEPROM | 1 KB | 1 KB |
| Maximum Clock Frequency | 20 MHz | 20 MHz |
| Instructions | 131 powerful instructions, most single-cycle | — |
| General Purpose I/O | 54 lines | 54 lines |
| Working Registers | 32 general purpose registers | 32 general purpose |
| Debug / Test Interface | JTAG (on-chip debug and boundary scan) | — |
| Supply Voltage | 4.5 V to 5.5 V | — |
| Package | 64-TQFP, 14 x 14 mm, 0.8 mm pitch | 64-TQFP (14x14 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Temperature Grade | Industrial | Industrial |
| RoHS Status | Green (lead-free, per FindIC listing) | Green (compliant) |
| Lifecycle Stage | ACTIVE | — |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] | — |
| Moisture Sensitivity Level | [DATA_NEEDED: MSL level] | — |
| LCD Controller | — | On-chip LCD controller with internal contrast control |
| Debug/Programming Interface | — | JTAG (boundary-scan, on-chip debug, ISP programming) |
| Timers | — | Three flexible timers |
| Supply Voltage Range | — | 2.5 V to 5.5 V (per ATmega329A family; see datasheet) |
| Product Family | — | AVR ATmega |