ATMEGA329A-AUR vs ATMEGA649A-AUR Comparison
Detailed side-by-side comparison of ATMEGA329A-AUR by Microchip Technology and ATMEGA649A-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
ATMEGA329A-AUR - AVR 8-bit MCU 32KB Flash 20MHz | Microchip
ATMEGA329A-AUR ✓ ActiveMicrochip Technology
ATMEGA649A-AUR - 8-Bit AVR MCU, 64KB Flash, TQFP-64 | Microchip
ATMEGA649A-AUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA329A-AUR | ATMEGA649A-AUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $2.68 | $5.72 |
| Core Architecture | AVR 8-bit RISC | 8-bit AVR RISC |
| Flash Memory | 32KB (16K x 16) | — |
| SRAM | 2KB | 4 KB |
| EEPROM | 1KB | 2 KB |
| Maximum Clock Speed | 20MHz | 16 MHz |
| Supply Voltage Range | 1.8V to 5.5V | 4.5 V to 5.5 V |
| I/O Ports | 32 I/O lines | 53 general-purpose I/O lines |
| LCD Controller | Integrated, up to 132 segments | Yes, on-chip with internal contrast control |
| ADC | 10-bit | — |
| Package | 64-TQFP (14x14 mm) | 64-TQFP (14x14 mm) |
| Package Pitch | 0.8 mm | — |
| Package Height | 1 mm | — |
| Mounting Type | Surface Mount | Surface Mount |
| Programming Interface | ICSP (In-Circuit Serial Programming) | — |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | — |
| Life Cycle Stage | Active | — |
| Qualification | Industrial grade (Ind Grn) | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | — |
| Flash Program Memory | — | 64 KB (32K x 16) |
| JTAG Interface | — | Yes (boundary-scan, on-chip debug, programming) |
| Instructions | — | 130 instructions, most single-cycle |
| Flash Programming | — | In-System Programmable (ISP), read-while-write |
| Operating Temperature Grade | — | Industrial |
| Data Bus Width | — | 8 bit |
| Lifecycle Status | — | Active |