ATMEGA645-16MU vs ATMEGA649-16MU Comparison
Detailed side-by-side comparison of ATMEGA645-16MU by Microchip Technology and ATMEGA649-16MU 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
ATMEGA645-16MU - 8-bit AVR MCU, 64KB Flash, 16MHz | Microchip
ATMEGA645-16MU ✓ ActiveMicrochip Technology
ATMEGA649-16MU - 8-bit AVR MCU 64KB Flash 16MHz 64-QFN | Microchip
ATMEGA649-16MU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA645-16MU | ATMEGA649-16MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.65 | $4.80 |
| Core Architecture | 8-bit AVR RISC | — |
| Program Memory Size | 64 KB (32K x 16) Flash, ISP | — |
| SRAM Size | 4 KB | — |
| EEPROM Size | 2 KB | — |
| Maximum Clock Frequency | 16 MHz | — |
| Throughput | 16 MIPS at 16 MHz | — |
| Supply Voltage Range | 2.7 V to 5.5 V | — |
| Number of I/O Lines | 68 | — |
| ADC Resolution | 10-bit | — |
| ADC Channels | 8 channels | — |
| Debug Interface | JTAG (on-chip debugging and boundary scan) | — |
| Package | 64-QFN (9x9 mm) | 64-QFN (9x9 mm) with exposed pad (64-VFQFN) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| Speed Grade Class | 16 (industrial, GREEN) | — |
| RoHS Status | GREEN package (per FindIC listing) | [DATA_NEEDED: RoHS status] |
| Core Supply | Single supply | — |
| Core Processor | — | AVR |
| Core Size | — | 8-bit |
| Speed | — | 16 MHz |
| Flash Memory | — | 64 KB (32K x 16) |
| EEPROM | — | 2 KB |
| RAM | — | 4 KB |
| GPIO | — | 54 / 69 |
| Connectivity | — | SPI, UART/USART |
| LCD Controller | — | On-chip LCD controller with internal contrast control |
| JTAG | — | Yes (boundary-scan and on-chip debug/programming) |
| Operating Voltage | — | [DATA_NEEDED: operating voltage range] |
| Oscillator Type | — | Internal |