ATMEGA329PA-AUR vs ATMEGA649P-MU Comparison
Detailed side-by-side comparison of ATMEGA329PA-AUR by Microchip Technology and ATMEGA649P-MU 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
ATMEGA329PA-AUR - 8-bit AVR MCU, 32KB Flash, 20MHz, 64-TQFP | Microchip
ATMEGA329PA-AUR ✓ ActiveMicrochip Technology
ATMEGA649P-MU - 8-bit AVR MCU 64KB Flash LCD 16MHz | Microchip
ATMEGA649P-MU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA329PA-AUR | ATMEGA649P-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | 8-bit AVR RISC (Harvard) | — |
| Family | ATmega (picoPower) | — |
| Program Memory (Flash) | 32 KB | — |
| EEPROM | 1 KB | 2 KB |
| SRAM | 2 KB | 4 KB |
| Maximum CPU Speed | 20 MHz | — |
| Supply Voltage | 2.7 V to 5.5 V (4.5 V to 5.5 V at 20 MHz) | — |
| General-Purpose I/O | 54 | — |
| Timers/Counters | Two 8-bit + One 16-bit | — |
| ADC | 8-channel, 10-bit | — |
| Serial Interfaces | USART, SPI, TWI (I2C) | — |
| LCD Controller | Up to 4x25 segments (integrated) | Yes (segment LCD driver) |
| Operating Temperature | -40C to +85C (Industrial) | — |
| Package | 64-pin TQFP (14x14 mm, 0.8 mm pitch) | 64-QFN (9x9 mm), MLF/VQFN |
| Mounting Type | Surface Mount | Surface Mount |
| Programming Interface | JTAG / debugWIRE / ISP | — |
| RoHS Status | Compliant | Green (RoHS compliant) |
| MSL Level | 3 (168 hours) | — |
| Core Processor | — | AVR |
| Core Size | — | 8-Bit |
| Speed | — | 16 MHz |
| Flash Memory | — | 64 KB (32K x 16) |
| Connectivity | — | SPI, UART/USART |
| General Purpose I/O | — | 54 / 69 |
| Operating Voltage | — | 1.8 V to 5.5 V |
| Working Registers | — | 32 general purpose |
| Debug Interface | — | JTAG (on-chip debug, boundary scan) |
| Low Power Technology | — | picoPower |
| Temperature Range | — | Industrial (Ind Temp) |
| Programming | — | ISP (In-System Programmable), read-while-write |