ATMEGA645A-AUR vs ATMEGA645P-AUR 对比
详细并排对比 ATMEGA645A-AUR 出自 Microchip Technology 和 ATMEGA645P-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Microchip Technology
ATMEGA645P-AUR - 8-bit AVR MCU, 64KB Flash, 16MHz | Microchip
ATMEGA645P-AUR ✓ 量产中规格对比
| 参数 | ATMEGA645A-AUR | ATMEGA645P-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） | $4.68 | $4.50 |
| Core Architecture | 8-bit AVR RISC | AVR 8-bit RISC |
| Max Operating Frequency | 16 MHz | — |
| Flash Memory | 64 KB (32K x 16) ISP FLASH | 64KB (32K x 16) In-System Programmable |
| EEPROM | 2 KB | 2KB |
| SRAM | 4 KB | 4KB |
| Operating Voltage Range | 2.5 V / 3.3 V / 5 V (per datasheet family listing) | — |
| General Purpose I/O | 54 I/O lines | — |
| Working Registers | 32 x 8-bit | — |
| ADC | 10-bit, 8 channels | — |
| LCD Controller | Yes, segment driver (megaAVR LCD family) | — |
| Timers | Two 8-bit, one 16-bit | — |
| Serial Interfaces | 2 x USART, SPI, TWI (I2C compatible) | — |
| Debug / Programming | JTAG, ICSP (In-Circuit Serial Programming) | — |
| 封装 | 64-TQFP (14 x 14 mm) | 64-TQFP (14x14 mm) |
| Operating Temperature (Max) | 85 C | — |
| 安装类型 | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (R suffix) | Tape & Reel (R suffix) |
| RoHS 状态 | Compliant | [DATA_NEEDED: RoHS compliance status] |
| 数据总线宽度 | — | 8 Bit |
| 最大时钟频率 | — | 16 MHz |
| 电源电压 | — | 4.5 V to 5.5 V (16 MHz industrial speed grade) |
| I/O Ports | — | 53 I/O lines |
| 工作温度 | — | -40C to +85C (A = industrial grade) |
| Programming Interface | — | ICSP (In-Circuit Serial Programming) |
| General Purpose Registers | — | 32 directly connected to ALU |
| Lifecycle Stage | — | Active |
| MSL Rating | — | [DATA_NEEDED: moisture sensitivity level] |