ATMEGA1284P-PU vs ATMEGA644P-20PU 对比
详细并排对比 ATMEGA1284P-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
ATMEGA644P-20PU - 8-bit AVR MCU 20MHz 64KB Flash | Microchip
ATMEGA644P-20PU ✓ 量产中规格对比
| 参数 | ATMEGA1284P-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） | $6.05 | $8.55 |
| Core Architecture | 8-bit AVR RISC | AVR 8-bit RISC |
| Flash Memory | 128 KB (64K x 16) ISP Flash | 64KB (32K x 16) |
| SRAM | 16 KB | 4KB |
| EEPROM | 4 KB | 2KB |
| Max Clock Frequency | 20 MHz | 20 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V | — |
| GPIO Count | 32 general purpose I/O lines | — |
| ADC | 8-channel 10-bit | — |
| USART Count | 2 | — |
| Timer/Counters | 3 with compare modes and PWM | — |
| Serial Interfaces | 2x USART, TWI (I2C-compatible), SPI | — |
| 封装 | 40-PDIP (through-hole) | 40-PDIP (0.600 inch width) |
| 安装类型 | Through Hole | Through Hole |
| Special Features | picoPower, Real Time Counter, Read-While-Write Flash | — |
| Instruction Set Throughput | Up to 1 MIPS per MHz | — |
| Working Registers | 32 general purpose | — |
| 生命周期状态 | Active | — |
| Core Size | — | 8-bit |
| 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 |
| RoHS 状态 | — | [DATA_NEEDED: RoHS compliance status] |
| MSL 等级 | — | N/A (through-hole) |