ATMEGA164A-MCHR vs ATMEGA1281V-8MUR 对比
详细并排对比 ATMEGA164A-MCHR 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
ATMEGA164A-MCHR - 8-bit AVR MCU 16KB Flash 20MHz QFN-44 | Microchip
ATMEGA164A-MCHR ✓ 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 | ATMEGA164A-MCHR | 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） | $3.01 | $4.02 |
| Core Architecture | AVR 8-bit RISC | 8-bit AVR RISC |
| 最大时钟频率 | 20 MHz | — |
| Flash Memory | 16 KB (8K x 16) ISP Flash | 128 KB (64K x 16), ISP |
| EEPROM | 512 B | 4 KB |
| SRAM | 1 KB | 8 KB |
| Supply Voltage Range | 2.7 V to 5.5 V | 1.8 V to 5.5 V |
| General Purpose I/O | 32 I/O lines | 54 lines |
| General Purpose Working Registers | 32 registers | — |
| Instruction Set | 133 instructions, mostly single-cycle | 133 instructions, most single-cycle |
| Throughput | Up to 1 MIPS per MHz | — |
| 封装 | 44-QFN (MLF) 5x5 mm | 64-QFN (9x9 mm), VQFN with exposed pad (MLF) |
| 安装类型 | Surface Mount | Surface Mount |
| Operating Temperature (Max) | 85 C | — |
| Packaging | Tape and Reel (R suffix) | — |
| Programming | In-System Programmable (ISP), read-while-write | — |
| Debug Interface | In-Circuit Debug via MPLAB SNAP (ICSP) | — |
| 生命周期状态 | Active | Active |
| RoHS 状态 | [DATA_NEEDED: RoHS compliance status] | Compliant (green package per FindIC listing) |
| Clock Speed | — | 8 MHz |
| 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 |
| 工作温度 | — | -40C to +85C (industrial) |