ATMEGA645-16MI vs ATMEGA325-16MI 对比
详细并排对比 ATMEGA645-16MI 出自 Microchip Technology 和 ATMEGA325-16MI 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
ATMEGA645-16MI - 8-Bit AVR MCU 16MHz 64KB Flash | Microchip
ATMEGA645-16MI ✓ 量产中Microchip Technology
ATMEGA325-16MI - AVR 8-Bit MCU 16MHz 32KB Flash | Microchip
ATMEGA325-16MI ✓ 量产中规格对比
| 参数 | ATMEGA645-16MI | ATMEGA325-16MI |
|---|---|---|
| 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） | $3.92 | $3.05 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Core Clock Speed | 16 MHz | — |
| Program Memory Size | 64 KB (32K x 16) Flash | — |
| Program Memory Type | In-System Programmable FLASH | — |
| SRAM Size | 4 KB | — |
| EEPROM Size | 2 KB | — |
| Number of I/O | 53 programmable I/O lines | 54 programmable I/O lines |
| ADC Resolution | 10-bit | — |
| ADC Channels | 8 | — |
| LCD Controller | Yes (segment LCD driver) | — |
| Debug Interface | JTAG (on-chip debug, boundary scan) | — |
| 封装 | 64-QFN (9x9 mm) | 64-QFN / MLF (9x9 mm) with exposed pad |
| 安装类型 | Surface Mount | Surface Mount |
| Temperature Grade | Industrial (-I suffix) | — |
| Instructions | 130 powerful instructions, most single-cycle | 130 powerful instructions, most single-cycle |
| 电源电压 | [DATA_NEEDED: supply voltage range] | — |
| RoHS 状态 | [DATA_NEEDED: RoHS status] | Compliant (Green per FindIC data) |
| Max Clock Frequency | — | 16 MHz |
| Program Memory (Flash) | — | 32 KB (16K x 16) |
| EEPROM | — | 1 KB |
| SRAM | — | 2 KB |
| Operating Voltage Range | — | 2.7 V to 5.5 V |
| Timers/Counters | — | Two 8-bit and two 16-bit |
| ADC | — | 10-bit |
| Serial Interfaces | — | USART, SPI, TWI (I2C-compatible) |
| 工作温度 | — | -40C to +85C (industrial) |
| ISP (In-System Programmable) | — | Yes |
| JTAG / Debug | — | JTAG boundary scan and on-chip debug |