ATMEGA649P-MUR vs ATMEGA329A-MUR Comparison
Detailed side-by-side comparison of ATMEGA649P-MUR by Microchip Technology and ATMEGA329A-MUR 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
ATMEGA649P-MUR - 16MHz 8-bit AVR MCU, 64KB Flash, 64-QFN | Microchip
ATMEGA649P-MUR β ActiveMicrochip Technology
ATMEGA329A-MUR - 8-bit AVR MCU, 32KB Flash, 64-QFN | Microchip
ATMEGA329A-MUR β ActiveSpecification Comparison
| Parameter | ATMEGA649P-MUR | ATMEGA329A-MUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $5.10 | $3.61 |
| Core Processor | AVR | β |
| Core Size | 8-Bit | β |
| Maximum Clock Speed | 16 MHz | β |
| Program Memory (Flash) | 64 KB (32K x 16) | 32 KB (16K x 16) |
| EEPROM Size | 2 KB | β |
| SRAM Size | 4 KB | β |
| General-Purpose I/O Lines | 54/69 | β |
| Supply Voltage Range | 2.7 V to 5.5 V | β |
| Operating Temperature | -40C to +85C (Industrial) | -40 C to +85 C (Industrial) |
| Package | 64-QFN (9x9 mm) with exposed pad | 64-pin QFN (9 x 9 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| LCD Controller | Integrated, up to 4x25 segments | β |
| ADC | 10-bit, up to 8 channels | 10-bit |
| Timers/Counters | Two 8-bit, One 16-bit | 2 x 8-bit, 1 x 16-bit |
| Communication Interfaces | USART, SPI, TWI (I2C) | β |
| Debug Interface | JTAG / debugWIRE | β |
| Watchdog Timer | Yes, with separate on-chip oscillator | β |
| RoHS Status | Compliant | Compliant ("Green") |
| Lead-Free / Green | Yes (Green) | β |
| Packing Media | Tape and Reel (4000 per reel) | β |
| Core Architecture | β | 8-bit AVR RISC |
| SRAM | β | 2 KB |
| EEPROM | β | 1 KB |
| Maximum CPU Speed | β | 20 MHz |
| Supply Voltage (Vcc) | β | 4.5 V to 5.5 V |
| I/O Pins | β | 32 |
| On-chip LCD Driver | β | Yes (segmented LCD) |
| Communication | β | USART, SPI, TWI (I2C-compatible) |
| Instruction Set | β | 131 instructions, mostly single-cycle |