ATMEGA64A-MU vs ATMEGA649A-MU Comparison
Detailed side-by-side comparison of ATMEGA64A-MU 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
ATMEGA64A-MU - 8-Bit AVR MCU, 16MHz, 64KB Flash | Microchip
ATMEGA64A-MU ✓ ActiveMicrochip Technology
ATMEGA649A-MU - 8-bit AVR MCU 64KB Flash 16MHz | Microchip
ATMEGA649A-MU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA64A-MU | ATMEGA649A-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.24 | $4.42 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Max Clock Frequency | 16 MHz | — |
| Flash Memory | 64 KB (32K x 16) ISP, read-while-write | 64 KB (32K x 16) ISP Flash |
| EEPROM | 2 KB | 2 KB |
| SRAM | 4 KB | 4 KB |
| General Purpose I/O | 53 lines | 54/69 I/O lines |
| Working Registers | 32 | 32 general purpose registers |
| Timer/Counters | 4 (two 8-bit, two 16-bit) plus RTC | — |
| USART Interfaces | 2 | — |
| ADC | 8-channel 10-bit | — |
| TWI (I2C) | Yes, byte-oriented | — |
| SPI | Yes | — |
| JTAG Interface | Yes (on-chip debug and boundary scan) | — |
| Supply Voltage Range | [DATA_NEEDED: Supply Voltage Range] | 1.8 V to 5.5 V (4.5 V to 5.5 V for 16 MHz operation) |
| Operating Temperature Range | [DATA_NEEDED: Operating Temperature Range] | — |
| Package | 64-QFN (9x9 mm), exposed pad, surface mount | 64-QFN (9x9 mm) with exposed pad (64-VFQFN) |
| Mounting Type | Surface Mount | Surface Mount |
| Pin Compatibility | 100% pin compatible with ATmega103 | — |
| Maximum Clock Speed | — | 16 MHz |
| Debug Interface | — | JTAG (boundary scan and on-chip debug) |
| Operating Temperature | — | -40C to +85C (Industrial) |
| Program Memory Type | — | Flash (read-while-write) |
| Series | — | AVR ATmega |
| RoHS Status | — | Compliant (Green package) |
| Core Performance | — | Up to 16 MIPS at 16 MHz (single-cycle instructions) |