ATMEGA645-16AI vs ATMEGA6450-16AU Comparison
Detailed side-by-side comparison of ATMEGA645-16AI by Microchip Technology and ATMEGA6450-16AU 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
ATMEGA645-16AI - 8-bit AVR MCU 64KB Flash 16MHz | Microchip
ATMEGA645-16AI ✓ ActiveMicrochip Technology
ATMEGA6450-16AU - 8-Bit AVR MCU 16MHz 64KB Flash | Microchip
ATMEGA6450-16AU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA645-16AI | ATMEGA6450-16AU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $6.45 | $7.85 |
| Core Architecture | 8-bit AVR RISC | — |
| Flash Program Memory | 64 KB (32K x 16) ISP | — |
| SRAM | 4 KB | — |
| EEPROM | 2 KB | — |
| Maximum Clock Frequency | 16 MHz | — |
| Throughput | 16 MIPS at 16 MHz | — |
| Operating Voltage Range | 2.7 V to 5.5 V | — |
| ADC | 8-channel, 10-bit | — |
| Programmable I/O | 68 (device), 54 available on 64-TQFP | — |
| JTAG Interface | Yes (on-chip debugging and boundary scan) | — |
| Instruction Set | 130 instructions, mostly single-cycle | — |
| Operating Temperature | -40C to +85C (industrial, I grade) | [DATA_NEEDED: Operating Temperature range] |
| Package | 64-TQFP (14x14 mm) | — |
| Mounting Type | Surface Mount | Surface Mount |
| Interfaces | USART, SPI, TWI (I2C) | — |
| ISP Capability | In-System Programmable Flash | — |
| RoHS Status | Compliant | [DATA_NEEDED: RoHS status] |
| Core Processor | — | AVR |
| Core Size | — | 8-Bit |
| Speed | — | 16 MHz |
| Program Memory Size | — | 64 KB (32K x 16) Flash |
| EEPROM Size | — | 2 KB |
| RAM Size | — | 4 KB |
| Supply Voltage (Vcc/Vdd) | — | 4.5 V to 5.5 V |
| Number of I/O | — | [DATA_NEEDED: Number of I/O] |
| ADC Resolution | — | 10-bit |
| Peripherals | — | [DATA_NEEDED: Peripherals list] |
| Connectivity | — | [DATA_NEEDED: Connectivity (SPI, UART/USART, TWI)] |
| Oscillator Type | — | Internal |
| Package / Case | — | 100-TQFP (14x14 mm) |
| Program Memory Type | — | In-System Programmable FLASH |
| Architecture | — | Advanced RISC, 130 instructions |