ATMEGA324A-AU vs ATMEGA324P-20AUR 对比
详细并排对比 ATMEGA324A-AU 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
ATMEGA324A-AU - AVR MCU 32KB Flash 20MHz TQFP-44 | Microchip
ATMEGA324A-AU ✓ 量产中规格对比
| 参数 | ATMEGA324A-AU | 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） | $2.09 | $4.52 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Flash Memory | 32 KB (ISP, read-while-write) | — |
| EEPROM | 1 KB | 1 KB |
| SRAM | 2 KB | 2 KB |
| Maximum CPU Frequency | 20 MHz | — |
| Supply Voltage Range | 1.8 V to 5.5 V (speed-grade dependent) | — |
| General Purpose I/O | 32 lines | — |
| General Purpose Working Registers | 32 | 32 |
| Instructions | 131 (most single-cycle) | — |
| Timers/Counters | 3 | — |
| Real Time Counter | Yes | Yes, with separate oscillator |
| Serial Interfaces | USART, SPI, 2-Wire (I2C/TWI) | SPI master/slave, byte-oriented TWI (I2C) |
| In-System Programming | Yes (ISP) | — |
| Package Type | TQFP-44, 10 x 10 mm, 1 mm height, 0.8 mm pitch | — |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | -40C to +85C (Industrial) | — |
| Life Cycle Stage | Active | — |
| RoHS 状态 | Compliant | Compliant |
| Program Memory Size | — | 32 KB ISP Flash (16K x 16) |
| 最大时钟频率 | — | 20 MHz |
| Operating Voltage Range | — | 4.5 V to 5.5 V |
| General Purpose I/O Lines | — | 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 |
| Flash Endurance | — | 10,000 write/erase cycles |
| EEPROM Endurance | — | 100,000 write/erase cycles |
| Programming Interfaces | — | SPI, JTAG, bootloader (ISP) |