ATMEGA325-16AU vs ATMEGA645-16AI 对比
详细并排对比 ATMEGA325-16AU 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
ATMEGA325-16AU - 32KB Flash 16MHz AVR 8-Bit MCU | Microchip
ATMEGA325-16AU ✓ 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 | ATMEGA325-16AU | 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） | $2.40 | $6.45 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Program Memory Size | 32KB (16K x 16) FLASH | — |
| EEPROM Size | 1KB | — |
| SRAM Size | 2KB | — |
| 最大时钟频率 | 16 MHz | 16 MHz |
| Supply Voltage Range | 4.5 V to 5.5 V | — |
| Number of I/O Pins | 54 | — |
| 封装 | 64-TQFP (14 x 14 mm, 0.8 mm pitch) | 64-TQFP (14x14 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | -40C to +85C | -40C to +85C (industrial, I grade) |
| Instruction Set | 131 instructions, mostly single-cycle | 130 instructions, mostly single-cycle |
| Peripherals | 10-bit ADC, UART, SPI, Watchdog Timer, Timers | — |
| In-System Programming | Yes (ISP FLASH) | — |
| Life Cycle Stage | ACTIVE | — |
| RoHS 状态 | [DATA_NEEDED: RoHS compliance status] | Compliant |
| MSL Rating | [DATA_NEEDED: moisture sensitivity level] | — |
| Flash Program Memory | — | 64 KB (32K x 16) ISP |
| SRAM | — | 4 KB |
| EEPROM | — | 2 KB |
| Throughput | — | 16 MIPS at 16 MHz |
| Operating Voltage Range | — | 2.7 V to 5.5 V |
| ADC | — | 8-channel, 10-bit |
| Programmable I/O | — | 68 (device), 54 available on 64-TQFP |
| JTAG Interface | — | Yes (on-chip debugging and boundary scan) |
| Interfaces | — | USART, SPI, TWI (I2C) |
| ISP Capability | — | In-System Programmable Flash |