ATMEGA649A-MU vs ATMEGA329A-MUR Comparison
Detailed side-by-side comparison of ATMEGA649A-MU 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
ATMEGA649A-MU - 8-bit AVR MCU 64KB Flash 16MHz | Microchip
ATMEGA649A-MU β ActiveMicrochip Technology
ATMEGA329A-MUR - 8-bit AVR MCU, 32KB Flash, 64-QFN | Microchip
ATMEGA329A-MUR β ActiveSpecification Comparison
| Parameter | ATMEGA649A-MU | ATMEGA329A-MUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.42 | $3.61 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Flash Memory | 64 KB (32K x 16) ISP Flash | β |
| EEPROM | 2 KB | 1 KB |
| SRAM | 4 KB | 2 KB |
| Maximum Clock Speed | 16 MHz | β |
| Supply Voltage Range | 1.8 V to 5.5 V (4.5 V to 5.5 V for 16 MHz operation) | β |
| General Purpose I/O | 54/69 I/O lines | β |
| Working Registers | 32 general purpose registers | β |
| Debug Interface | JTAG (boundary scan and on-chip debug) | β |
| Package | 64-QFN (9x9 mm) with exposed pad (64-VFQFN) | 64-pin QFN (9 x 9 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) | -40 C to +85 C (Industrial) |
| Program Memory Type | Flash (read-while-write) | β |
| Series | AVR ATmega | β |
| RoHS Status | Compliant (Green package) | Compliant ("Green") |
| Core Performance | Up to 16 MIPS at 16 MHz (single-cycle instructions) | β |
| Program Memory (Flash) | β | 32 KB (16K x 16) |
| 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) |
| ADC | β | 10-bit |
| Communication | β | USART, SPI, TWI (I2C-compatible) |
| Timers/Counters | β | 2 x 8-bit, 1 x 16-bit |
| Instruction Set | β | 131 instructions, mostly single-cycle |