ATMEGA329A-MUR vs ATMEGA649A-MU Comparison
Detailed side-by-side comparison of ATMEGA329A-MUR by Microchip Technology and ATMEGA649A-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
ATMEGA329A-MUR - 8-bit AVR MCU, 32KB Flash, 64-QFN | Microchip
ATMEGA329A-MUR β ActiveMicrochip Technology
ATMEGA649A-MU - 8-bit AVR MCU 64KB Flash 16MHz | Microchip
ATMEGA649A-MU β ActiveSpecification Comparison
| Parameter | ATMEGA329A-MUR | ATMEGA649A-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.61 | $4.42 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Program Memory (Flash) | 32 KB (16K x 16) | β |
| SRAM | 2 KB | 4 KB |
| EEPROM | 1 KB | 2 KB |
| 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 (64-VFQFN) |
| On-chip LCD Driver | Yes (segmented LCD) | β |
| ADC | 10-bit | β |
| Communication | USART, SPI, TWI (I2C-compatible) | β |
| Timers/Counters | 2 x 8-bit, 1 x 16-bit | β |
| Operating Temperature | -40 C to +85 C (Industrial) | -40C to +85C (Industrial) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant ("Green") | Compliant (Green package) |
| Instruction Set | 131 instructions, mostly single-cycle | β |
| Flash Memory | β | 64 KB (32K x 16) ISP Flash |
| Maximum Clock Speed | β | 16 MHz |
| Supply Voltage Range | β | 1.8 V to 5.5 V (4.5 V to 5.5 V for 16 MHz operation) |
| General Purpose I/O | β | 54/69 I/O lines |
| Working Registers | β | 32 general purpose registers |
| Debug Interface | β | JTAG (boundary scan and on-chip debug) |
| Program Memory Type | β | Flash (read-while-write) |
| Series | β | AVR ATmega |
| Core Performance | β | Up to 16 MIPS at 16 MHz (single-cycle instructions) |