ATMEGA649-16AI vs ATMEGA329-16AI Comparison
Detailed side-by-side comparison of ATMEGA649-16AI by Microchip Technology and ATMEGA329-16AI 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
ATMEGA329-16AI - 8-bit AVR MCU 32KB Flash 16MHz LCD | Microchip
ATMEGA329-16AI β ActiveSpecification Comparison
| Parameter | ATMEGA649-16AI | ATMEGA329-16AI |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.00 | $0.00 |
| 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 | β |
| General Purpose I/O | 54 I/O lines (TQFP-64 configuration) | 54 lines |
| Working Registers | 32 x 8-bit general purpose | 32 |
| JTAG | Yes (on-chip debug and boundary scan) | β |
| LCD Controller | On-chip segment LCD driver | Integrated segment LCD driver |
| 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) |
| Supply Voltage Range | [DATA_NEEDED: supply voltage range] | 2.7 V to 5.5 V |
| RoHS Status | Compliant (per Microchip product listing) | β |
| Programming Interfaces | ISP (SPI), JTAG, ICSP via MPLAB SNAP | β |
| Core Architecture | β | 8-bit AVR RISC |
| Flash Program Memory | β | 32 KB (16K x 16), ISP with read-while-write |
| SRAM | β | 2 KB |
| EEPROM | β | 1 KB |
| ADC | β | 8-channel, 10-bit |
| Serial Interfaces | β | SPI, UART/USART, USI |
| Debug Interface | β | JTAG (on-chip debug and boundary scan) |
| Peripherals | β | Brown-out Detect/Reset, POR, PWM, WDT |
| Programming | β | In-System Programmable (ICSP via MPLAB SNAP) |