ATMEGA644P-20AU vs ATMEGA324P-20AU 对比
详细并排对比 ATMEGA644P-20AU 出自 Microchip Technology 和 ATMEGA324P-20AU 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-20AU - 8-Bit AVR MCU 20MHz 64KB Flash TQFP-44 | Microchip
ATMEGA644P-20AU ✓ 量产中Microchip Technology
ATMEGA324P-20AU - 8-bit AVR MCU 20MHz 32KB Flash | Microchip
ATMEGA324P-20AU ✓ 量产中规格对比
| 参数 | ATMEGA644P-20AU | ATMEGA324P-20AU |
|---|---|---|
| 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 | $6.24 |
| Core | AVR 8-bit RISC | — |
| Core Size | 8-Bit | — |
| 最大时钟频率 | 20 MHz | 20 MHz |
| Program Memory Size | 64 KB (32K x 16) FLASH | — |
| Data RAM Size | 4 KB SRAM | — |
| EEPROM Size | 2 KB | — |
| Supply Voltage Range | 4.5 V to 5.5 V (20 MHz grade) | — |
| Number of USARTs | 2 | — |
| ADC Resolution | 10-bit | — |
| Peripherals | SPI, TWI (I2C), PWM timers, WDT, BOD | — |
| I/O Count | 32 | — |
| 封装 | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | -40C to +85C (industrial) | [DATA_NEEDED: operating temperature range] |
| Throughput | Up to 20 MIPS at 20 MHz (approx. 1 MIPS/MHz) | — |
| Programming | In-System Programmable (ISP) via SPI | In-System Programmable (ISP), read-while-write |
| RoHS 状态 | Compliant (green package) | — |
| Core Architecture | — | 8-bit AVR RISC |
| Flash Memory | — | 32 KB (16K x 16) ISP |
| EEPROM | — | 1 KB |
| SRAM | — | 2 KB |
| 电源电压 | — | 4.5 V to 5.5 V (20 MHz rating) |
| Number of I/O Lines | — | 32 |
| USARTs | — | 2 |
| Timers | — | 3 timer/counters with compare modes and PWM |
| ADC | — | 8-channel, 10-bit |
| Serial Interfaces | — | 2x USART, SPI, Two-Wire (I2C-compatible) |
| Low Power Technology | — | picoPower |
| Working Registers | — | 32 general purpose |
| Moisture Sensitivity Level | — | [DATA_NEEDED: MSL level] |