ATMEGA645-16MUR vs ATMEGA649A-MU Comparison
Detailed side-by-side comparison of ATMEGA645-16MUR 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
ATMEGA645-16MUR - 8-bit AVR MCU 64KB 16MHz 64-QFN | Microchip
ATMEGA645-16MUR β ActiveMicrochip Technology
ATMEGA649A-MU - 8-bit AVR MCU 64KB Flash 16MHz | Microchip
ATMEGA649A-MU β ActiveSpecification Comparison
| Parameter | ATMEGA645-16MUR | ATMEGA649A-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $3.35 | $4.42 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Core Size | 8-Bit | β |
| Maximum Clock Frequency | 16 MHz | β |
| Program Memory Size | 64 KB (32K x 16) Flash | β |
| EEPROM Size | 2 KB | β |
| SRAM Size | 4 KB | β |
| Supply Voltage Range | 4.5 V to 5.5 V | 1.8 V to 5.5 V (4.5 V to 5.5 V for 16 MHz operation) |
| Number of I/O | 53 | β |
| ADC Resolution | 10 bit | β |
| ADC Channels | 8 | β |
| Interfaces | JTAG, SPI, USART, I2C (TWI) | β |
| LCD Controller | Yes (segment LCD driver) | β |
| Throughput | 16 MIPS at 16 MHz | β |
| Package | 64-QFN (9 x 9 mm) | 64-QFN (9x9 mm) with exposed pad (64-VFQFN) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel, Green/RoHS | β |
| Instructions | 130 (most single-cycle) | β |
| Flash Memory | β | 64 KB (32K x 16) ISP Flash |
| EEPROM | β | 2 KB |
| SRAM | β | 4 KB |
| Maximum Clock Speed | β | 16 MHz |
| 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 |
| RoHS Status | β | Compliant (Green package) |
| Core Performance | β | Up to 16 MIPS at 16 MHz (single-cycle instructions) |