ATMEGA3290A-AU vs ATMEGA3250A-AU 对比
详细并排对比 ATMEGA3290A-AU 出自 Microchip Technology 和 ATMEGA3250A-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。
Microchip Technology
ATMEGA3250A-AU - 8-bit AVR MCU 32KB 20MHz TQFP-100 | Microchip
ATMEGA3250A-AU ✓ 量产中规格对比
| 参数 | ATMEGA3290A-AU | ATMEGA3250A-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 | $2.50 |
| Core Processor | AVR | AVR |
| Core Size | 8-Bit | 8-Bit |
| Speed | 20 MHz | 20 MHz |
| Program Memory Size | 32KB (16K x 16) FLASH | — |
| RAM Size | 2K x 8 SRAM | — |
| EEPROM Size | 1KB | — |
| Number of I/O | 69 | 68 |
| Working Registers | 32 general purpose | — |
| Instructions | 130 powerful instructions, most single-cycle | 131 (most single-cycle) |
| LCD Controller | On-chip, up to 4 x 40 segments, internal contrast control | — |
| Timers | Two 8-bit with prescaler/compare, one 16-bit | — |
| Debug/Programming Interface | JTAG (boundary-scan, on-chip debug and programming) | — |
| Oscillator Type | Internal | — |
| 封装 / 外壳 | 100-TQFP (14x14 mm) | — |
| 工作温度 | Industrial range | [DATA_NEEDED: operating temperature 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] | — |
| Flash Memory | — | 32 KB (16K x 16) |
| SRAM | — | 2 KB |
| EEPROM | — | 1 KB |
| 电源电压 | — | 4.5 V to 5.5 V |
| I/O Ports | — | 32 (A-J port system) |
| Connectivity | — | SPI, UART/USART, TWI (I2C) |
| Peripherals | — | Brown-out Detect/Reset, POR, PWM, WDT |
| ADC Resolution | — | 10 bit |
| ADC Channels | — | 8 |
| Debug Interface | — | JTAG (on-chip debug + boundary scan) |
| 封装 | — | 100-TQFP (14x14 mm), 0.8 mm pitch |
| RoHS 状态 | — | Compliant (Green) |