ATMEGA3290A-AU vs ATMEGA329A-AU 对比
详细并排对比 ATMEGA3290A-AU 出自 Microchip Technology 和 ATMEGA329A-AU 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 | ATMEGA3290A-AU | ATMEGA329A-AU |
|---|---|---|
| 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） | $3.85 | $3.31 |
| Core Processor | AVR | — |
| Core Size | 8-Bit | — |
| Speed | 20 MHz | — |
| Program Memory Size | 32KB (16K x 16) FLASH | — |
| RAM Size | 2K x 8 SRAM | — |
| EEPROM Size | 1KB | — |
| Number of I/O | 69 | — |
| Working Registers | 32 general purpose | 32 general purpose |
| Instructions | 130 powerful instructions, most single-cycle | — |
| LCD Controller | On-chip, up to 4 x 40 segments, internal contrast control | On-chip LCD controller with internal contrast control |
| Timers | Two 8-bit with prescaler/compare, one 16-bit | Three flexible timers |
| Debug/Programming Interface | JTAG (boundary-scan, on-chip debug and programming) | JTAG (boundary-scan, on-chip debug, ISP programming) |
| Oscillator Type | Internal | — |
| 封装 / 外壳 | 100-TQFP (14x14 mm) | — |
| 工作温度 | Industrial range | — |
| 安装类型 | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (TR) | — |
| 工作电源电压 | [DATA_NEEDED: operating supply voltage range] | — |
| Core Architecture | — | 8-bit AVR RISC |
| Flash Memory | — | 32 KB ISP Flash (16K x 16) with read-while-write |
| SRAM | — | 2 KB |
| EEPROM | — | 1 KB |
| 最大时钟频率 | — | 20 MHz |
| General Purpose I/O | — | 54 lines |
| 封装 | — | 64-TQFP (14x14 mm) |
| Temperature Grade | — | Industrial |
| RoHS 状态 | — | Green (compliant) |
| Supply Voltage Range | — | 2.5 V to 5.5 V (per ATmega329A family; see datasheet) |
| Product Family | — | AVR ATmega |