ATMEGA1281V-8MUR vs ATMEGA128A-MU Comparison
Detailed side-by-side comparison of ATMEGA1281V-8MUR by Microchip Technology and ATMEGA128A-MU 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-8MUR - 8-bit AVR MCU 128KB Flash 8MHz | Microchip
ATMEGA1281V-8MUR ✓ ActiveMicrochip Technology
ATMEGA128A-MU - 8-bit AVR MCU 128KB 16MHz 64-QFN | Microchip (Tape & Reel)
ATMEGA128A-MU ✓ ActiveSpecification Comparison
| Parameter | ATMEGA1281V-8MUR | ATMEGA128A-MU |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Category | Microcontrollers | Microcontrollers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $4.02 | $5.20 |
| Core Architecture | 8-bit AVR RISC | — |
| Clock Speed | 8 MHz | — |
| Flash Memory | 128 KB (64K x 16), ISP | 128 KB (64K x 16) |
| SRAM | 8 KB | 4 KB |
| EEPROM | 4 KB | 4 KB |
| Supply Voltage Range | 1.8 V to 5.5 V | 2.7 V to 5.5 V |
| Instruction Set | 133 instructions, most single-cycle | — |
| General Purpose I/O | 54 lines | 53 lines |
| Timers/Counters | Six flexible timers with compare modes and PWM | — |
| Serial USART | Four programmable USARTs | — |
| ADC | 8/16-channel, 10-bit | — |
| 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) | [DATA_NEEDED: operating temperature range] |
| Package | 64-QFN (9x9 mm), VQFN with exposed pad (MLF) | 64-VFQFN Exposed Pad (9x9 mm) |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant (green package per FindIC listing) | — |
| Lifecycle Status | Active | Active |
| Core Processor | — | AVR |
| Core Size | — | 8-Bit |
| Maximum Clock Speed | — | 16 MHz |
| Working Registers | — | 32 general purpose |
| Instructions | — | 133 powerful instructions, most single-cycle |
| Timer/Counters | — | 4 flexible timer/counters with compare modes and PWM |
| Connectivity | — | EBI/EMI, I2C (Two-Wire Interface), SPI, UART/USART (2x USART) |
| Real-Time Counter | — | Yes |
| Packaging | — | Tape & Reel (TR) |