ATMEGA649-16AU vs ATMEGA329-16AU Comparison
Detailed side-by-side comparison of ATMEGA649-16AU by Microchip Technology and ATMEGA329-16AU 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 ✓ ActiveSpecification Comparison
| Parameter | ATMEGA649-16AU | ATMEGA329-16AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $6.27 | $8.45 |
| Core | 8-bit AVR RISC | — |
| Core Size | 8-bit | — |
| Max Clock Frequency | 16 MHz | — |
| Flash Memory | 64 KB (32K x 16) ISP, read-while-write | — |
| EEPROM | 2 KB | 1 KB |
| SRAM | 4 KB | 2 KB |
| GPIO | 54/69 general purpose I/O lines (package dependent) | — |
| Working Registers | 32 general purpose | — |
| LCD Controller | Integrated segment LCD driver | On-chip segment LCD controller with internal contrast control |
| Debug / Test Interface | JTAG (boundary-scan and on-chip debug) | — |
| Package | 64-TQFP (14 x 14 mm) | 64-TQFP (14x14 mm), 0.8 mm pitch |
| Mounting Type | Surface Mount | Surface Mount |
| Supply Voltage Range | [DATA_NEEDED: supply voltage range] | 4.5 V to 5.5 V |
| Operating Temperature Range | Industrial, -40C to +85C (IND TEMP per part marking) | — |
| Throughput | Up to 16 MIPS at 16 MHz | — |
| ADC | On-chip 10-bit ADC | — |
| Programming | In-System Programmable (ISP) Flash, ICSP via MPLAB SNAP | — |
| RoHS Status | Compliant (GREEN package per distributor data) | [DATA_NEEDED: RoHS status] |
| Newer Device Available | ATMEGA649A | — |
| Core Architecture | — | 8-bit AVR RISC |
| Maximum Clock Frequency | — | 16 MHz |
| Flash Program Memory | — | 32 KB (16K x 16) |
| General Purpose I/O Lines | — | 54 |
| 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 |
| Life Cycle Stage | — | Active |
| Operating Temperature | — | [DATA_NEEDED: operating temperature range] |