ATMEGA324A-MU vs ATMEGA644PA-MU 对比
详细并排对比 ATMEGA324A-MU 出自 Microchip Technology 和 ATMEGA644PA-MU 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
ATMEGA644PA-MU - 8-bit AVR MCU 64KB 20MHz VQFN-44 | Microchip
ATMEGA644PA-MU ✓ 量产中规格对比
| 参数 | ATMEGA324A-MU | ATMEGA644PA-MU |
|---|---|---|
| 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） | $3.90 | $3.78 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Flash Memory | 32 KB ISP Flash (read-while-write) | 64 KB (32K x 16) ISP Flash, read-while-write |
| EEPROM | 1 KB | 2 KB |
| SRAM | 2 KB | 4 KB |
| 最大时钟频率 | 20 MHz | — |
| General Purpose I/O Lines | 32 | — |
| Working Registers | 32 general purpose | — |
| Supply Voltage Class | 2.5 V / 3.3 V / 5 V systems | — |
| 封装 | 44-VFQFN Exposed Pad | 44-VQFN (7x7 mm), exposed pad |
| 安装类型 | Surface Mount | Surface Mount |
| Temperature Range | Industrial (-40C to +85C) | — |
| Instructions | 131 powerful instructions, most single-cycle | 131 instructions, most single-cycle |
| Throughput | Up to ~1 MIPS per MHz | — |
| Real Time Counter | Yes | — |
| 生命周期状态 | Active | — |
| Packaging | Tape & Reel | — |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | RoHS compliant (per Microchip product listing) |
| Supply Voltage Range (Vcc min-max) | [DATA_NEEDED: full Vcc min-max range] | — |
| Core Frequency | — | 20 MHz |
| GPIO Count | — | 32 |
| MIPS Throughput | — | Up to 20 MIPS at 20 MHz |
| Timer/Counters | — | Three flexible timer/counters with compare modes and PWM |
| USART | — | Two programmable serial USARTs |
| Serial Interfaces | — | Two-Wire Interface (I2C-compatible), SPI |
| ADC | — | 8-channel 10-bit ADC |
| RTC | — | Real Time Counter with separate oscillator |
| Low Power Technology | — | picoPower |
| Supply Voltage Range | — | 2.5 V / 3.3 V / 5 V class (per distributor listing: 2.5V/3.3V/5V) |
| Data Sheet Document Number | — | DS40002070A (per Microchip ATMEGA644PA-MU data sheet) |