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