ATMEGA649P-MUR vs ATMEGA329A-MUR 对比
详细并排对比 ATMEGA649P-MUR 出自 Microchip Technology 和 ATMEGA329A-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
ATMEGA649P-MUR - 16MHz 8-bit AVR MCU, 64KB Flash, 64-QFN | Microchip
ATMEGA649P-MUR ✓ 量产中Microchip Technology
ATMEGA329A-MUR - 8-bit AVR MCU, 32KB Flash, 64-QFN | Microchip
ATMEGA329A-MUR ✓ 量产中规格对比
| 参数 | ATMEGA649P-MUR | ATMEGA329A-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） | $5.10 | $3.61 |
| Core Processor | AVR | — |
| Core Size | 8-Bit | — |
| Maximum Clock Speed | 16 MHz | — |
| Program Memory (Flash) | 64 KB (32K x 16) | 32 KB (16K x 16) |
| EEPROM Size | 2 KB | — |
| SRAM Size | 4 KB | — |
| General-Purpose I/O Lines | 54/69 | — |
| Supply Voltage Range | 2.7 V to 5.5 V | — |
| 工作温度 | -40C to +85C (Industrial) | -40 C to +85 C (Industrial) |
| 封装 | 64-QFN (9x9 mm) with exposed pad | 64-pin QFN (9 x 9 mm) with exposed pad |
| 安装类型 | Surface Mount | Surface Mount |
| LCD Controller | Integrated, up to 4x25 segments | — |
| ADC | 10-bit, up to 8 channels | 10-bit |
| Timers/Counters | Two 8-bit, One 16-bit | 2 x 8-bit, 1 x 16-bit |
| Communication Interfaces | USART, SPI, TWI (I2C) | — |
| Debug Interface | JTAG / debugWIRE | — |
| Watchdog Timer | Yes, with separate on-chip oscillator | — |
| RoHS 状态 | Compliant | Compliant ("Green") |
| Lead-Free / Green | Yes (Green) | — |
| Packing Media | Tape and Reel (4000 per reel) | — |
| Core Architecture | — | 8-bit AVR RISC |
| SRAM | — | 2 KB |
| EEPROM | — | 1 KB |
| Maximum CPU Speed | — | 20 MHz |
| Supply Voltage (Vcc) | — | 4.5 V to 5.5 V |
| I/O Pins | — | 32 |
| On-chip LCD Driver | — | Yes (segmented LCD) |
| Communication | — | USART, SPI, TWI (I2C-compatible) |
| Instruction Set | — | 131 instructions, mostly single-cycle |