ATMEGA329V-8AI vs ATMEGA649V-8AI 对比
详细并排对比 ATMEGA329V-8AI 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 | ATMEGA329V-8AI | 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） | $4.45 | $5.40 |
| Core Architecture | 8-bit AVR RISC | AVR 8-bit RISC |
| CPU Speed | 8 MHz | — |
| Program Memory (Flash) | 32 KB (16K x 16) | — |
| SRAM | 2 KB | 4 KB |
| EEPROM | 1 KB | 2 KB |
| Supply Voltage (Vcc) | 1.8 V to 5.5 V | — |
| General Purpose I/O | 54 lines | 54 I/O lines |
| General Purpose Registers | 32 | — |
| LCD Controller | On-chip, supports up to 4x25 segments | Integrated segment LCD driver |
| ADC | 10-bit, up to 8 channels | 10-bit |
| Timers/Counters | Three flexible Timer/Counters with PWM | Two 8-bit, two 16-bit |
| Serial Interfaces | USART, SPI, TWI (I2C-compatible) | — |
| Debug Interface | JTAG (IEEE 1149.1 compliant) | — |
| 封装 | 64-pin TQFP, 14x14 mm body, 0.5 mm pitch | 64-TQFP (14x14 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | -40C to +85C (industrial) | — |
| RoHS 状态 | Compliant | [DATA_NEEDED: RoHS status] |
| Max CPU Clock | — | 8 MHz |
| Flash Program Memory | — | 64 KB (32K x 16) |
| Operating Voltage Range | — | 1.8 V to 5.5 V |
| 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 |