ATMEGA644-20MUR vs ATMEGA1284-MUR 对比
详细并排对比 ATMEGA644-20MUR 出自 Microchip Technology 和 ATMEGA1284-MUR 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
ATMEGA644-20MUR - 8-bit AVR MCU 64KB Flash 20MHz | Microchip
ATMEGA644-20MUR ✓ 量产中Microchip Technology
ATMEGA1284-MUR - 8-bit AVR MCU, 128KB Flash, 20MHz | Microchip
ATMEGA1284-MUR ✓ 量产中规格对比
| 参数 | ATMEGA644-20MUR | ATMEGA1284-MUR |
|---|---|---|
| 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） | $5.05 | $1.72 |
| Core Architecture | 8-bit AVR RISC | — |
| Max Clock Frequency | 20 MHz | — |
| Program Memory (Flash) | 64KB (32K x 16) | — |
| SRAM | 4KB | 16 KB |
| EEPROM | 2KB | 4 KB |
| Supply Voltage Range | 4.5 V to 5.5 V | — |
| 数据总线宽度 | 8 Bit | — |
| General Purpose I/O | 32 I/O lines | — |
| Timers/Counters | 3 (with compare modes and PWM) | — |
| Communication Interfaces | USART, SPI, TWI (I2C) | — |
| ADC | 10-bit | — |
| Programming Interface | ICSP (In-Circuit Serial Programming), debugWIRE | — |
| 工作温度 | Industrial (-40C to +85C) | — |
| 封装 | 44-VQFN (7x7 mm) Exposed Pad | 44-VQFN (7x7 mm) with exposed pad |
| 安装类型 | Surface Mount | Surface Mount |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | — |
| Lifecycle Stage | ACTIVE | — |
| Core Processor | — | AVR |
| Core Size | — | 8-Bit |
| Speed | — | 20 MHz |
| Flash Memory | — | 128 KB (64K x 16) |
| Operating Voltage | — | 2.5 V / 3.3 V / 5 V |
| Number of I/O | — | 32 |
| Connectivity | — | I2C, SPI, UART/USART |
| USARTs | — | 2 |
| ADC Resolution | — | 10-bit |
| Timers | — | 3 x timer/counter with compare modes and PWM |
| Real-Time Counter | — | Yes |
| Packaging | — | Tape & Reel (TR) |
| Product Status | — | Active |
| Architecture | — | AVR enhanced RISC, 133 instructions, mostly single-cycle |