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