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