ATMEGA644PA-MNR vs ATMEGA644PA-MU 对比
详细并排对比 ATMEGA644PA-MNR 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-MNR - 8-bit AVR MCU 64KB Flash 20MHz | Microchip
ATMEGA644PA-MNR ✓ 量产中Microchip Technology
ATMEGA644PA-MU - 8-bit AVR MCU 64KB 20MHz VQFN-44 | Microchip
ATMEGA644PA-MU ✓ 量产中规格对比
| 参数 | ATMEGA644PA-MNR | 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） | $1.80 | $3.78 |
| Core | AVR 8-bit RISC | — |
| Program Memory Size | 64 KB (32K x 16) Flash | — |
| Program Memory Type | ISP FLASH, read-while-write | — |
| EEPROM Size | 2 KB | — |
| SRAM Size | 4 KB (4K x 8) | — |
| CPU Speed | 20 MHz | — |
| Number of I/O | 32 | — |
| General Purpose Working Registers | 32 | — |
| Instructions | 131, mostly single-clock cycle | 131 instructions, most single-cycle |
| Oscillator Type | Internal | — |
| 封装 / 外壳 | 44-VQFN (7x7 mm) Exposed Pad | — |
| 安装类型 | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (TR) | — |
| Programming / Debug | ICSP, JTAG | — |
| Technology Feature | picoPower low-power technology | — |
| 工作温度 | [DATA_NEEDED: exact grade per suffix; Mouser lists 105C grade variant] | — |
| Operating Voltage Range | [DATA_NEEDED: exact VCC range for this suffix] | — |
| Core Architecture | — | 8-bit AVR RISC |
| Core Frequency | — | 20 MHz |
| Flash Memory | — | 64 KB (32K x 16) ISP Flash, read-while-write |
| EEPROM | — | 2 KB |
| SRAM | — | 4 KB |
| 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) |
| 封装 | — | 44-VQFN (7x7 mm), exposed pad |
| RoHS 状态 | — | RoHS compliant (per Microchip product listing) |
| Data Sheet Document Number | — | DS40002070A (per Microchip ATMEGA644PA-MU data sheet) |