ATMEGA649P-AUR vs ATMEGA645A-AUR 对比
详细并排对比 ATMEGA649P-AUR 出自 Microchip Technology 和 ATMEGA645A-AUR 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
ATMEGA645A-AUR - 8-bit AVR MCU 64KB Flash 16MHz TQFP-64 | Microchip
ATMEGA645A-AUR ✓ 量产中规格对比
| 参数 | ATMEGA649P-AUR | ATMEGA645A-AUR |
|---|---|---|
| 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） | $4.72 | $4.68 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Flash Memory | 64 KB ISP Flash (read-while-write) | 64 KB (32K x 16) ISP FLASH |
| EEPROM | 2 KB | 2 KB |
| SRAM | 4 KB | 4 KB |
| Maximum CPU Speed | 16 MHz | — |
| General Purpose I/O | 54/69 lines | 54 I/O lines |
| Working Registers | 32 general purpose | 32 x 8-bit |
| LCD Controller | Integrated segment LCD driver | Yes, segment driver (megaAVR LCD family) |
| Debug Interface | JTAG (on-chip debug, boundary scan) | — |
| Low Power Technology | picoPower | — |
| 电源电压 | 1.8 V to 5.5 V (picoPower family) | — |
| 工作温度 | -40C to +85C (industrial, per A-grade suffix) | — |
| 封装 | 64TQFP (TQFP-64) | 64-TQFP (14 x 14 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| Packing | Tape & Reel (T&R) | — |
| RoHS / Green | GREEN package | — |
| Product Status | Active | — |
| Max Operating Frequency | — | 16 MHz |
| Operating Voltage Range | — | 2.5 V / 3.3 V / 5 V (per datasheet family listing) |
| ADC | — | 10-bit, 8 channels |
| Timers | — | Two 8-bit, one 16-bit |
| Serial Interfaces | — | 2 x USART, SPI, TWI (I2C compatible) |
| Debug / Programming | — | JTAG, ICSP (In-Circuit Serial Programming) |
| Operating Temperature (Max) | — | 85 C |
| Packaging | — | Tape & Reel (R suffix) |
| RoHS 状态 | — | Compliant |