ATMEGA649V-8AU vs ATMEGA649V-8AI 对比
详细并排对比 ATMEGA649V-8AU 出自 Microchip Technology 和 ATMEGA649V-8AI 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。
规格对比
| 参数 | ATMEGA649V-8AU | ATMEGA649V-8AI |
|---|---|---|
| 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） | $7.28 | $5.40 |
| Core | 8-bit AVR RISC | — |
| Flash Memory | 64 KB (32K x 16), ISP, read-while-write | — |
| EEPROM | 2 KB | 2 KB |
| SRAM | 4 KB | 4 KB |
| Maximum Clock Speed | 8 MHz | — |
| Supply Voltage Range | 1.8 V to 5.5 V | — |
| General Purpose I/O | 54 I/O lines (69 available on 100-pin variant) | 54 I/O lines |
| LCD Controller | Integrated segment LCD driver (up to 25 segments x 4 commons) | Integrated segment LCD driver |
| ADC | 10-bit, 8 channels | 10-bit |
| Debug / Boundary Scan | JTAG interface (IEEE 1149.1 boundary-scan) | — |
| Working Registers | 32 general purpose registers | 32 general purpose |
| Programming | In-System Programmable (ISP), ICSP via MPLAB SNAP | — |
| 封装 | 64-TQFP, 14 x 14 mm | 64-TQFP (14x14 mm) |
| 工作温度 | -40C to +85C (industrial) | — |
| 数据总线宽度 | 8 Bit | — |
| 安装类型 | Surface Mount | Surface Mount |
| RoHS / Green | GREEN package per ADatasheet listing | — |
| Peripherals | Timers, USART, SPI, TWI, RTC/TOSC pins | — |
| Core Architecture | — | AVR 8-bit RISC |
| Max CPU Clock | — | 8 MHz |
| Flash Program Memory | — | 64 KB (32K x 16) |
| Operating Voltage Range | — | 1.8 V to 5.5 V |
| Timers/Counters | — | Two 8-bit, two 16-bit |
| Temperature Grade | — | Industrial (-40C to +85C) |
| Programming Interface | — | ISP / ICSP via SPI, JTAG for debug |
| Instructions | — | 130 instructions, most single-cycle |
| RoHS 状态 | — | [DATA_NEEDED: RoHS status] |