ATMEGA1281-16AU vs ATMEGA2561-16MU 对比
详细并排对比 ATMEGA1281-16AU 出自 Microchip Technology 和 ATMEGA2561-16MU 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
ATMEGA1281-16AU - 8-Bit AVR MCU 128KB Flash 16MHz | Microchip
ATMEGA1281-16AU ✓ 量产中Microchip Technology
ATMEGA2561-16MU - 8-bit AVR MCU 256KB Flash 16MHz 64-QFN | Microchip
ATMEGA2561-16MU ✓ 量产中规格对比
| 参数 | ATMEGA1281-16AU | ATMEGA2561-16MU |
|---|---|---|
| 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） | $8.27 | $11.83 |
| Core Architecture | AVR 8-bit RISC | AVR 8-bit RISC |
| 最大时钟频率 | 16 MHz | — |
| Flash Memory | 128 KB (64K x 16) ISP FLASH | — |
| SRAM | 8 KB (8K x 8) | 8 KB |
| EEPROM | 4 KB (4K x 8) | 4 KB |
| 电源电压 | 2.7 V to 5.5 V | — |
| I/O Pins | 54 | — |
| ADC | 8-channel 10-bit | 8-channel, 10-bit |
| USARTs | 2 | — |
| 封装 | 64-TQFP (14 x 14 mm) | 64-VFQFN (9x9 mm) with exposed pad |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | -40C to +85C | -40 C to +85 C (industrial) |
| 数据总线宽度 | 8 Bit | — |
| Oscillator Type | Internal | — |
| Life Cycle Stage | ACTIVE | — |
| RoHS 状态 | Green / RoHS compliant (per Jotrin: GREEN packaging) | — |
| Maximum CPU Frequency | — | 16 MHz |
| MIPS Throughput | — | 16 MIPS |
| Program Flash Memory | — | 256 KB (128K x 16) |
| Operating Voltage (VCC) | — | 4.5 V to 5.5 V |
| Programmable I/O Lines | — | 54 |
| General-Purpose Working Registers | — | 32 |
| USART | — | 4 channels |
| SPI | — | 1 channel (Master/Slave) |
| TWI (I2C) | — | 1 channel (byte-oriented) |
| Timer/Counters | — | 2x 8-bit + 4x 16-bit with PWM |
| Watchdog Timer | — | Yes, with separate on-chip oscillator |
| Analog Comparator | — | On-chip, with selectable hysteresis |
| JTAG Debug Interface | — | Yes (boundary-scan capable) |
| External Memory Interface (EBI/EMI) | — | Yes |
| MSL 等级 | — | [DATA_NEEDED: MSL level] |
| Lead-Free / RoHS | — | Yes / Compliant |