ATMEGA645-16MU vs ATMEGA64A-MU Comparison
Detailed side-by-side comparison of ATMEGA645-16MU by Microchip Technology and ATMEGA64A-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
ATMEGA645-16MU - 8-bit AVR MCU, 64KB Flash, 16MHz | Microchip
ATMEGA645-16MU ✓ ActiveMicrochip Technology
ATMEGA64A-MU - 8-Bit AVR MCU, 16MHz, 64KB Flash | Microchip
ATMEGA64A-MU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA645-16MU | ATMEGA64A-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.65 | $4.24 |
| Core Architecture | 8-bit AVR RISC | 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 | [DATA_NEEDED: Supply Voltage Range] |
| 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), exposed pad, surface mount |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | — |
| Speed Grade Class | 16 (industrial, GREEN) | — |
| RoHS Status | GREEN package (per FindIC listing) | — |
| Core Supply | Single supply | — |
| Max Clock Frequency | — | 16 MHz |
| Flash Memory | — | 64 KB (32K x 16) ISP, read-while-write |
| EEPROM | — | 2 KB |
| SRAM | — | 4 KB |
| General Purpose I/O | — | 53 lines |
| Working Registers | — | 32 |
| 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) |
| Operating Temperature Range | — | [DATA_NEEDED: Operating Temperature Range] |
| Pin Compatibility | — | 100% pin compatible with ATmega103 |