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