ATMEGA649-16AI vs ATMEGA645-16AI Comparison
Detailed side-by-side comparison of ATMEGA649-16AI 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
ATMEGA649-16AI - 8-Bit AVR MCU 16MHz 64KB Flash | Microchip
ATMEGA649-16AI β ActiveMicrochip Technology
ATMEGA645-16AI - 8-bit AVR MCU 64KB Flash 16MHz | Microchip
ATMEGA645-16AI β ActiveSpecification Comparison
| Parameter | ATMEGA649-16AI | ATMEGA645-16AI |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.00 | $6.45 |
| Core | AVR 8-Bit RISC | β |
| Core Size | 8-Bit | β |
| Maximum Clock Frequency | 16 MHz | 16 MHz |
| Program Memory Size | 64 KB (32K x 16) Flash, ISP, read-while-write | β |
| EEPROM Size | 2 KB | β |
| SRAM Size | 4 KB | β |
| Instruction Set | 130 powerful instructions, most single-cycle | 130 instructions, mostly single-cycle |
| General Purpose I/O | 54 I/O lines (TQFP-64 configuration) | β |
| Working Registers | 32 x 8-bit general purpose | β |
| JTAG | Yes (on-chip debug and boundary scan) | β |
| LCD Controller | On-chip segment LCD driver | β |
| Package | 64-TQFP (14x14 mm) | 64-TQFP (14x14 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C (industrial grade, per Atmel part number suffix 'I') | -40C to +85C (industrial, I grade) |
| Supply Voltage Range | [DATA_NEEDED: supply voltage range] | β |
| RoHS Status | Compliant (per Microchip product listing) | Compliant |
| Programming Interfaces | ISP (SPI), JTAG, ICSP via MPLAB SNAP | β |
| Core Architecture | β | 8-bit AVR RISC |
| Flash Program Memory | β | 64 KB (32K x 16) ISP |
| SRAM | β | 4 KB |
| EEPROM | β | 2 KB |
| Throughput | β | 16 MIPS at 16 MHz |
| Operating Voltage Range | β | 2.7 V to 5.5 V |
| ADC | β | 8-channel, 10-bit |
| Programmable I/O | β | 68 (device), 54 available on 64-TQFP |
| JTAG Interface | β | Yes (on-chip debugging and boundary scan) |
| Interfaces | β | USART, SPI, TWI (I2C) |
| ISP Capability | β | In-System Programmable Flash |