ATMEGA1281V-8MU vs ATMEGA1281V-8MUR Comparison
Detailed side-by-side comparison of ATMEGA1281V-8MU 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
ATMEGA1281V-8MU - 8MHz AVR MCU, 128KB Flash | Microchip
ATMEGA1281V-8MU ✓ ActiveMicrochip Technology
ATMEGA1281V-8MUR - 8-bit AVR MCU 128KB Flash 8MHz | Microchip
ATMEGA1281V-8MUR ✓ ActiveSpecification Comparison
| Parameter | ATMEGA1281V-8MU | ATMEGA1281V-8MUR |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Core Architecture | AVR 8-bit RISC | 8-bit AVR RISC |
| Data Bus Width | 8 Bit | — |
| Maximum Clock Speed | 8 MHz | — |
| Flash Memory | 128 KB (64K x 16) In-System Programmable | 128 KB (64K x 16), ISP |
| SRAM | 8 KB | 8 KB |
| EEPROM | 4 KB | 4 KB |
| Supply Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| General Purpose I/O | 54 lines | 54 lines |
| Timers/Counters | 6 (two 8-bit, four 16-bit) | Six flexible timers with compare modes and PWM |
| ADC | 8-channel, 10-bit | 8/16-channel, 10-bit |
| USART | 2 | — |
| SPI | 1 | — |
| TWI (I2C-compatible) | 1 | — |
| JTAG Debug / Boundary Scan | Yes | — |
| Instructions | 133, most single-cycle | — |
| Working Registers | 32 x 8-bit | — |
| Package | 64-QFN (MLF), 9 x 9 mm | 64-QFN (9x9 mm), VQFN with exposed pad (MLF) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant (green package) | Compliant (green package per FindIC listing) |
| Lifecycle Stage | ACTIVE | — |
| Clock Speed | — | 8 MHz |
| Instruction Set | — | 133 instructions, most single-cycle |
| Serial USART | — | Four programmable USARTs |
| Serial Interfaces | — | SPI (master/slave), 2-wire serial (I2C-compatible) |
| 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) |
| Lifecycle Status | — | Active |