ATMEGA128A-MU vs ATMEGA1281V-8MUR 对比
详细并排对比 ATMEGA128A-MU 出自 Microchip Technology 和 ATMEGA1281V-8MUR 出自 Microchip Technology。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
Microchip Technology
ATMEGA128A-MU - 8-bit AVR MCU 128KB 16MHz 64-QFN | Microchip (Tape & Reel)
ATMEGA128A-MU ✓ 量产中Microchip Technology
ATMEGA1281V-8MUR - 8-bit AVR MCU 128KB Flash 8MHz | Microchip
ATMEGA1281V-8MUR ✓ 量产中规格对比
| 参数 | ATMEGA128A-MU | ATMEGA1281V-8MUR |
|---|---|---|
| 品牌 | Microchip Technology | Microchip Technology |
| 分类 | Microcontrollers | Microcontrollers |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $5.20 | $4.02 |
| Core Processor | AVR | — |
| Core Size | 8-Bit | — |
| Maximum Clock Speed | 16 MHz | — |
| Flash Memory | 128 KB (64K x 16) | 128 KB (64K x 16), ISP |
| EEPROM | 4 KB | 4 KB |
| SRAM | 4 KB | 8 KB |
| Supply Voltage Range | 2.7 V to 5.5 V | 1.8 V to 5.5 V |
| General Purpose I/O | 53 lines | 54 lines |
| 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 | — |
| 封装 | 64-VFQFN Exposed Pad (9x9 mm) | 64-QFN (9x9 mm), VQFN with exposed pad (MLF) |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | [DATA_NEEDED: operating temperature range] | -40C to +85C (industrial) |
| Packaging | Tape & Reel (TR) | — |
| 生命周期状态 | Active | Active |
| Core Architecture | — | 8-bit AVR RISC |
| Clock Speed | — | 8 MHz |
| Instruction Set | — | 133 instructions, most single-cycle |
| 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 |
| RoHS 状态 | — | Compliant (green package per FindIC listing) |