ATMEGA644-20MUR vs ATMEGA32A-MUR 对比
详细并排对比 ATMEGA644-20MUR 出自 Microchip Technology 和 ATMEGA32A-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 ✓ 量产中规格对比
| 参数 | ATMEGA644-20MUR | ATMEGA32A-MUR |
|---|---|---|
| 品牌 | Microchip Technology | Microchip Technology |
| 分类 | Microcontrollers | Microcontrollers |
| 生命周期状态 | 有效 | 有效 |
| Core Architecture | 8-bit AVR RISC | — |
| Max Clock Frequency | 20 MHz | — |
| Program Memory (Flash) | 64KB (32K x 16) | — |
| SRAM | 4KB | 2 KB |
| EEPROM | 2KB | 1 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) | I2C, SPI, UART/USART |
| ADC | 10-bit | 8-channel, 10-bit |
| Programming Interface | ICSP (In-Circuit Serial Programming), debugWIRE | — |
| 工作温度 | Industrial (-40C to +85C) | [DATA_NEEDED: operating temperature range] |
| 封装 | 44-VQFN (7x7 mm) Exposed Pad | 44-VQFN, 7x7 mm |
| 安装类型 | Surface Mount | Surface mount |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | [DATA_NEEDED: RoHS status] |
| Lifecycle Stage | ACTIVE | — |
| Product Type | — | 8-bit AVR microcontroller |
| Architecture | — | AVR enhanced RISC |
| Maximum Clock Speed | — | 16 MHz |
| Flash Memory | — | 32 KB |
| 电源电压 | — | 4.5 V to 5.5 V |
| I/O Ports | — | 32 |
| Debug Interface | — | JTAG |
| Package Type | — | VQFN with exposed pad |
| Core | — | AVR 8-bit core |
| Program Memory Type | — | Self-programmable Flash |
| Instruction Set | — | 131 AVR instructions |
| ADC Resolution | — | 10 bit |
| REACH Status | — | [DATA_NEEDED: REACH status] |
| AEC-Q100 Qualification | — | [DATA_NEEDED: AEC-Q100 qualification] |
| Absolute Maximum Ratings | — | [DATA_NEEDED: absolute maximum ratings] |