ATMEGA644PA-PU vs ATMEGA644P-20PU 对比
详细并排对比 ATMEGA644PA-PU 出自 Microchip Technology 和 ATMEGA644P-20PU 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
ATMEGA644PA-PU - 8-bit AVR MCU 20MHz 64KB Flash DIP-40 | Microchip
ATMEGA644PA-PU ✓ 量产中Microchip Technology
ATMEGA644P-20PU - 8-bit AVR MCU 20MHz 64KB Flash | Microchip
ATMEGA644P-20PU ✓ 量产中规格对比
| 参数 | ATMEGA644PA-PU | ATMEGA644P-20PU |
|---|---|---|
| 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） | $5.15 | $8.55 |
| Core Architecture | 8-bit AVR RISC | AVR 8-bit RISC |
| Core Series | AVR ATmega | — |
| 最大时钟频率 | 20 MHz | — |
| Flash Memory | 64 KB (32K x 16) | 64KB (32K x 16) |
| SRAM | 4 KB | 4KB |
| EEPROM | 2 KB | 2KB |
| General Purpose I/O Lines | 32 | — |
| Working Registers | 32 | — |
| ADC | 8-channel, 10-bit | — |
| USART Interfaces | 2 | — |
| Two-Wire Interface | Yes (byte-oriented, I2C-compatible) | — |
| Timer/Counters | 3, with compare modes and PWM | — |
| Low Power Technology | picoPower | — |
| 封装 | 40-PDIP (0.600 in, 15.24 mm) | 40-PDIP (0.600 inch width) |
| 安装类型 | Through Hole | Through Hole |
| Operating Voltage Range | [DATA_NEEDED: operating voltage range] | — |
| 工作温度范围 | [DATA_NEEDED: operating temperature range] | — |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | [DATA_NEEDED: RoHS compliance status] |
| Core Size | — | 8-bit |
| Max Clock Frequency | — | 20 MHz |
| I/O Count | — | 32 |
| ADC Channels | — | 8 channels, 10-bit |
| PWM Channels | — | 6 |
| Timers/Counters | — | 3 |
| Communication Interfaces | — | I2C, SPI, UART/USART (2 x USART) |
| Supply Voltage (max speed) | — | 5 V (4.5V to 5.5V) |
| 工作温度 | — | -40C to +85C |
| Program Memory Type | — | ISP FLASH (read-while-write) |
| Technology | — | picoPower low-power CMOS |
| MSL 等级 | — | N/A (through-hole) |