ATMEGA645A-AU vs ATMEGA645P-AU 对比
详细并排对比 ATMEGA645A-AU 出自 Microchip Technology 和 ATMEGA645P-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
ATMEGA645A-AU - 8-bit AVR MCU 64KB Flash 16MHz TQFP-64 | Microchip
ATMEGA645A-AU ✓ 量产中Microchip Technology
ATMEGA645P-AU - 8-bit AVR MCU 64KB Flash 16MHz TQFP-64 | Microchip
ATMEGA645P-AU ✓ 量产中规格对比
| 参数 | ATMEGA645A-AU | ATMEGA645P-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） | $3.95 | $4.60 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Max CPU Frequency | 16 MHz | — |
| Flash Memory | 64 KB (32K x 16) In-System Programmable | 64 KB (32K x 16) ISP |
| EEPROM | 2 KB | 2 KB |
| SRAM | 4 KB | 4 KB |
| General Purpose I/O | 54 GPIO | 54 lines |
| 封装 | 64-TQFP (14x14 mm) | 64-TQFP (14 x 14 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| 电源电压 | 4.5 V to 5.5 V (16 MHz operation) | — |
| 工作温度 | [DATA_NEEDED: operating temperature range] | -40C to +85C (Industrial) |
| ADC | 10-bit, up to 8 channels | — |
| LCD Controller | Yes, up to 4 COM x 25 SEG | — |
| Communication Interfaces | USART, SPI, TWI (I2C) | — |
| Timers | 2 x 8-bit, 1 x 16-bit (plus watchdog) | — |
| 引脚数 | 64 | — |
| RoHS 状态 | Compliant | Compliant (Green package per Microchip listings) |
| MSL 等级 | [DATA_NEEDED: moisture sensitivity level] | — |
| 最大时钟频率 | — | 16 MHz |
| Supply Voltage Range | — | 2.5 V to 5.5 V |
| Working Registers | — | 32 x 8-bit general purpose |
| Programming Interface | — | ICSP (In-Circuit Serial Programming) |
| Debug Support | — | debugWIRE via MPLAB SNAP |
| Low Power Technology | — | picoPower |
| Approximate Throughput | — | up to 16 MIPS at 16 MHz (1 MIPS/MHz) |