ATMEGA329A-AU vs ATMEGA3290A-AU 对比
详细并排对比 ATMEGA329A-AU 出自 Microchip Technology 和 ATMEGA3290A-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 | ATMEGA329A-AU | ATMEGA3290A-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） | $3.31 | $3.85 |
| 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 | — |
| Working Registers | 32 general purpose | 32 general purpose |
| LCD Controller | On-chip LCD controller with internal contrast control | On-chip, up to 4 x 40 segments, internal contrast control |
| Debug/Programming Interface | JTAG (boundary-scan, on-chip debug, ISP programming) | JTAG (boundary-scan, on-chip debug and programming) |
| Timers | Three flexible timers | Two 8-bit with prescaler/compare, one 16-bit |
| 封装 | 64-TQFP (14x14 mm) | — |
| 安装类型 | Surface Mount | Surface Mount |
| 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 | — |
| 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 |
| Instructions | — | 130 powerful instructions, most single-cycle |
| Oscillator Type | — | Internal |
| 封装 / 外壳 | — | 100-TQFP (14x14 mm) |
| 工作温度 | — | Industrial range |
| Packaging | — | Tape & Reel (TR) |
| 工作电源电压 | — | [DATA_NEEDED: operating supply voltage range] |