ATMEGA644P-20AQR vs ATMEGA324P-20AUR 对比
详细并排对比 ATMEGA644P-20AQR 出自 Microchip Technology 和 ATMEGA324P-20AUR 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-20AQR - 8-bit AVR MCU 64KB 20MHz TQFP-44 | Microchip
ATMEGA644P-20AQR ✓ 量产中规格对比
| 参数 | ATMEGA644P-20AQR | ATMEGA324P-20AUR |
|---|---|---|
| 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） | $5.95 | $4.52 |
| Core Architecture | AVR 8-bit RISC | 8-bit AVR RISC |
| Core Size | 8-Bit | — |
| 最大时钟频率 | 20 MHz | 20 MHz |
| Program Memory Size | 64 KB (32K x 16) Flash | 32 KB ISP Flash (16K x 16) |
| Program Memory Type | In-System Programmable Flash | — |
| RAM Size | 4 KB (4K x 8) SRAM | — |
| EEPROM Size | 2 KB | — |
| Number of I/O | 32 | — |
| 封装 / 外壳 | 44-TQFP (10 x 10 mm) | — |
| 安装类型 | Surface Mount | Surface Mount |
| Oscillator Type | Internal | — |
| Peripherals | Dual USART, 10-bit ADC, JTAG, picoPower features | — |
| Instructions | 131 powerful instructions, most single-clock cycle | — |
| 电源电压 | 5 V (industrial per Mouser listing); [DATA_NEEDED: exact VCC min/max range] | — |
| 工作温度 | [DATA_NEEDED: temperature range - Mouser lists IND (industrial)] | — |
| Packaging | Tape & Reel (TR) | — |
| Programming Interface | ICSP (SPI) and JTAG | — |
| RoHS 状态 | [DATA_NEEDED: RoHS compliance status] | Compliant |
| EEPROM | — | 1 KB |
| SRAM | — | 2 KB |
| Operating Voltage Range | — | 4.5 V to 5.5 V |
| General Purpose I/O Lines | — | 32 |
| General Purpose Working Registers | — | 32 |
| Instruction Set | — | 131 powerful instructions, most single-clock cycle |
| 封装 | — | 44-pin TQFP (10 x 10 mm, 0.80 mm pitch) |
| 工作温度范围 | — | -40C to +85C (industrial) |
| ADC | — | 8-channel 10-bit successive approximation |
| USART Interfaces | — | 2 |
| Timer/Counters | — | Three flexible timer/counters with compare modes and PWM |
| Serial Interfaces | — | SPI master/slave, byte-oriented TWI (I2C) |
| Real Time Counter | — | Yes, with separate oscillator |
| Flash Endurance | — | 10,000 write/erase cycles |
| EEPROM Endurance | — | 100,000 write/erase cycles |
| Programming Interfaces | — | SPI, JTAG, bootloader (ISP) |