ATMEGA645A-AU vs ATMEGA645-16AI 对比
详细并排对比 ATMEGA645A-AU 出自 Microchip Technology 和 ATMEGA645-16AI 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
ATMEGA645-16AI - 8-bit AVR MCU 64KB Flash 16MHz | Microchip
ATMEGA645-16AI ✓ 量产中规格对比
| 参数 | ATMEGA645A-AU | ATMEGA645-16AI |
|---|---|---|
| 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 | $6.45 |
| 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 | — |
| EEPROM | 2 KB | 2 KB |
| SRAM | 4 KB | 4 KB |
| General Purpose I/O | 54 GPIO | — |
| 封装 | 64-TQFP (14x14 mm) | 64-TQFP (14x14 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| 电源电压 | 4.5 V to 5.5 V (16 MHz operation) | — |
| 工作温度 | [DATA_NEEDED: operating temperature range] | -40C to +85C (industrial, I grade) |
| ADC | 10-bit, up to 8 channels | 8-channel, 10-bit |
| 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 | Compliant |
| MSL 等级 | [DATA_NEEDED: moisture sensitivity level] | — |
| Flash Program Memory | — | 64 KB (32K x 16) ISP |
| 最大时钟频率 | — | 16 MHz |
| Throughput | — | 16 MIPS at 16 MHz |
| Operating Voltage Range | — | 2.7 V to 5.5 V |
| Programmable I/O | — | 68 (device), 54 available on 64-TQFP |
| JTAG Interface | — | Yes (on-chip debugging and boundary scan) |
| Instruction Set | — | 130 instructions, mostly single-cycle |
| Interfaces | — | USART, SPI, TWI (I2C) |
| ISP Capability | — | In-System Programmable Flash |