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