ATMEGA645A-AU vs ATMEGA325A-AU 对比
详细并排对比 ATMEGA645A-AU 出自 Microchip Technology 和 ATMEGA325A-AU 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
ATMEGA645A-AU - 8-bit AVR MCU 64KB Flash 16MHz TQFP-64 | Microchip
ATMEGA645A-AU ✓ 量产中Microchip Technology
ATMEGA325A-AU - AVR 8-bit MCU 32KB Flash 20MHz 64TQFP | Microchip
ATMEGA325A-AU ✓ 量产中规格对比
| 参数 | ATMEGA645A-AU | ATMEGA325A-AU |
|---|---|---|
| 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） | $3.95 | $3.12 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Max CPU Frequency | 16 MHz | — |
| Flash Memory | 64 KB (32K x 16) In-System Programmable | 32 KB (16K x 16) ISP Flash with read-while-write |
| EEPROM | 2 KB | 1 KB |
| SRAM | 4 KB | 2 KB |
| General Purpose I/O | 54 GPIO | 54 lines |
| 封装 | 64-TQFP (14x14 mm) | 64-TQFP, 14 x 14 mm, 0.8 mm pitch |
| 安装类型 | Surface Mount | Surface Mount |
| 电源电压 | 4.5 V to 5.5 V (16 MHz operation) | 4.5 V to 5.5 V |
| 工作温度 | [DATA_NEEDED: operating temperature range] | — |
| ADC | 10-bit, up to 8 channels | — |
| LCD Controller | Yes, up to 4 COM x 25 SEG | — |
| Communication Interfaces | USART, SPI, TWI (I2C) | — |
| Timers | 2 x 8-bit, 1 x 16-bit (plus watchdog) | — |
| 引脚数 | 64 | — |
| RoHS 状态 | Compliant | Green (lead-free, per FindIC listing) |
| MSL 等级 | [DATA_NEEDED: moisture sensitivity level] | — |
| 最大时钟频率 | — | 20 MHz |
| Instructions | — | 131 powerful instructions, most single-cycle |
| Working Registers | — | 32 general purpose registers |
| Debug / Test Interface | — | JTAG (on-chip debug and boundary scan) |
| Temperature Grade | — | Industrial |
| Lifecycle Stage | — | ACTIVE |
| 工作温度范围 | — | [DATA_NEEDED: operating temperature range] |
| Moisture Sensitivity Level | — | [DATA_NEEDED: MSL level] |