ATMEGA6490-16AUR vs ATMEGA645-16AI Comparison
Detailed side-by-side comparison of ATMEGA6490-16AUR by Microchip Technology and ATMEGA645-16AI 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
ATMEGA6490-16AUR - 8-bit AVR MCU 64KB Flash 16MHz LCD | Microchip
ATMEGA6490-16AUR ✓ ActiveMicrochip Technology
ATMEGA645-16AI - 8-bit AVR MCU 64KB Flash 16MHz | Microchip
ATMEGA645-16AI ✓ ActiveSpecification Comparison
| Parameter | ATMEGA6490-16AUR | ATMEGA645-16AI |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Flash Program Memory | 64 KB (32K x 16) ISP, read-while-write | 64 KB (32K x 16) ISP |
| EEPROM | 2 KB | 2 KB |
| SRAM | 4 KB | 4 KB |
| Maximum CPU Speed | 16 MHz | — |
| General Purpose I/O | 54 / 69 lines | — |
| Working Registers | 32 general purpose registers | — |
| LCD Controller | Integrated segment LCD driver | — |
| ADC | 8-channel 10-bit | 8-channel, 10-bit |
| Debug / Boundary Scan | JTAG interface | — |
| Supply Voltage | 4.5 V to 5.5 V (16 MHz grade) | — |
| Low Power Technology | picoPower | — |
| Package | 100-TQFP (14 x 14 mm) | 64-TQFP (14x14 mm) |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C (industrial, I grade) |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (R suffix) | — |
| RoHS Status | Compliant (GREEN, per FindIC data) | Compliant |
| Instructions | 130 instructions, mostly single-cycle | — |
| Maximum Clock Frequency | — | 16 MHz |
| Throughput | — | 16 MIPS at 16 MHz |
| Operating Voltage Range | — | 2.7 V to 5.5 V |
| 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 |
| Interfaces | — | USART, SPI, TWI (I2C) |
| ISP Capability | — | In-System Programmable Flash |