ATMEGA1281-16MU vs ATMEGA1281V-8MUR Comparison
Detailed side-by-side comparison of ATMEGA1281-16MU by Microchip Technology and ATMEGA1281V-8MUR 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
ATMEGA1281V-8MUR - 8-bit AVR MCU 128KB Flash 8MHz | Microchip
ATMEGA1281V-8MUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA1281-16MU | ATMEGA1281V-8MUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core | AVR 8-bit RISC | — |
| Maximum Clock Frequency | 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 | 1.8 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) | Six flexible timers with compare modes and PWM |
| USART Channels | 4 | — |
| Serial Interfaces | TWI (I2C-compatible), SPI | SPI (master/slave), 2-wire serial (I2C-compatible) |
| ADC Channels | 16-channel | — |
| Data Bus Width | 8 Bit | — |
| Package | 64-QFN (9x9 mm), VFQFN exposed pad | 64-QFN (9x9 mm), VQFN with exposed pad (MLF) |
| Mounting Type | Surface Mount | Surface Mount |
| Temperature Range | Industrial (-40C to +85C) | — |
| Life Cycle Stage | Active | — |
| Core Architecture | — | 8-bit AVR RISC |
| Clock Speed | — | 8 MHz |
| Flash Memory | — | 128 KB (64K x 16), ISP |
| SRAM | — | 8 KB |
| EEPROM | — | 4 KB |
| Instruction Set | — | 133 instructions, most single-cycle |
| General Purpose I/O | — | 54 lines |
| Serial USART | — | Four programmable USARTs |
| ADC | — | 8/16-channel, 10-bit |
| Debug / Programming | — | JTAG on-chip debug, In-Circuit Serial Programming (ICSP) |
| Watchdog Timer | — | Programmable WDT with separate on-chip oscillator |
| Analog Comparator | — | On-chip analog comparator |
| Operating Temperature | — | -40C to +85C (industrial) |
| RoHS Status | — | Compliant (green package per FindIC listing) |
| Lifecycle Status | — | Active |