ATMEGA329-16AU vs ATMEGA329A-AU Comparison
Detailed side-by-side comparison of ATMEGA329-16AU 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
ATMEGA329-16AU - 8-bit AVR MCU 16MHz 32KB Flash LCD | Microchip
ATMEGA329-16AU ✓ ActiveMicrochip Technology
ATMEGA329A-AU - 32KB AVR MCU, 20MHz, TQFP-64 | Microchip
ATMEGA329A-AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA329-16AU | ATMEGA329A-AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $8.45 | $3.31 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Maximum Clock Frequency | 16 MHz | 20 MHz |
| Flash Program Memory | 32 KB (16K x 16) | — |
| EEPROM | 1 KB | 1 KB |
| SRAM | 2 KB | 2 KB |
| Supply Voltage Range | 4.5 V to 5.5 V | 2.5 V to 5.5 V (per ATmega329A family; see datasheet) |
| General Purpose I/O Lines | 54 | — |
| Package | 64-TQFP (14x14 mm), 0.8 mm pitch | 64-TQFP (14x14 mm) |
| LCD Controller | On-chip segment LCD controller with internal contrast control | On-chip LCD controller with internal contrast control |
| JTAG Interface | Yes (boundary-scan, on-chip debug, programming) | — |
| In-System Programming | Yes (ISP Flash, read-while-write) | — |
| General Purpose Working Registers | 32 | — |
| Instructions | 130+ powerful instructions, most single-clock cycle | — |
| Mounting Type | Surface Mount | Surface Mount |
| Life Cycle Stage | Active | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | Green (compliant) |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | — |
| Flash Memory | — | 32 KB ISP Flash (16K x 16) with read-while-write |
| General Purpose I/O | — | 54 lines |
| Working Registers | — | 32 general purpose |
| Debug/Programming Interface | — | JTAG (boundary-scan, on-chip debug, ISP programming) |
| Timers | — | Three flexible timers |
| Temperature Grade | — | Industrial |
| Product Family | — | AVR ATmega |