ATMEGA1281-16MU vs ATMEGA329-16MUR Comparison
Detailed side-by-side comparison of ATMEGA1281-16MU by Microchip Technology and ATMEGA329-16MUR 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
ATMEGA1281-16MU - 8-Bit AVR MCU 16MHz 128KB Flash | Microchip (Tape & Reel)
ATMEGA1281-16MU ✓ ActiveMicrochip Technology
ATMEGA329-16MUR - 32KB Flash 16MHz AVR MCU, 64-QFN | Microchip
ATMEGA329-16MUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA1281-16MU | ATMEGA329-16MUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core | AVR 8-bit RISC | AVR 8-bit RISC |
| Maximum Clock Frequency | 16 MHz | 16 MHz |
| Program Memory Size | 128 KB (64K x 16) Flash | — |
| SRAM Size | 8 KB | — |
| EEPROM Size | 4 KB | — |
| Supply Voltage Range | 2.7 V to 5.5 V | 4.5 V to 5.5 V |
| Number of I/O Lines | 54 | — |
| General Purpose Working Registers | 32 | — |
| Timers/Counters | 6 (flexible, with compare modes and PWM) | — |
| USART Channels | 4 | — |
| Serial Interfaces | TWI (I2C-compatible), SPI | — |
| ADC Channels | 16-channel | — |
| Data Bus Width | 8 Bit | — |
| Package | 64-QFN (9x9 mm), VFQFN exposed pad | 64-QFN (9x9 mm), 0.8 mm pitch, exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Temperature Range | Industrial (-40C to +85C) | — |
| Life Cycle Stage | Active | — |
| Flash Program Memory | — | 32 KB (16K x 16) |
| EEPROM | — | 1 KB |
| SRAM | — | 2 KB |
| General Purpose I/O | — | 54 lines |
| ADC Resolution | — | 10-bit |
| LCD Controller | — | Segment LCD, 25 segments x 4 commons |
| JTAG Interface | — | Yes (on-chip debug and boundary scan) |
| Instructions | — | 131 instructions, mostly single-cycle |
| Operating Temperature | — | [DATA_NEEDED: operating temperature range] |
| Programming Interface | — | ISP / ICSP via SPI, JTAG |
| Lifecycle Status | — | Active |