ATMEGA644P-20PU vs ATMEGA1284P-PU 对比
详细并排对比 ATMEGA644P-20PU 出自 Microchip Technology 和 ATMEGA1284P-PU 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 | ATMEGA644P-20PU | ATMEGA1284P-PU |
|---|---|---|
| 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） | $8.55 | $6.05 |
| Core Architecture | AVR 8-bit RISC | 8-bit AVR RISC |
| Core Size | 8-bit | — |
| Max Clock Frequency | 20 MHz | 20 MHz |
| Flash Memory | 64KB (32K x 16) | 128 KB (64K x 16) ISP Flash |
| SRAM | 4KB | 16 KB |
| EEPROM | 2KB | 4 KB |
| 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 | — |
| 封装 | 40-PDIP (0.600 inch width) | 40-PDIP (through-hole) |
| 安装类型 | Through Hole | Through Hole |
| 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) | — |
| 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 |
| 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 |