ATMEGA640V-8AU vs ATMEGA6490V-8AUR 对比
详细并排对比 ATMEGA640V-8AU 出自 Microchip Technology 和 ATMEGA6490V-8AUR 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
ATMEGA640V-8AU - 8MHz 64KB Flash AVR MCU 100-TQFP | Microchip
ATMEGA640V-8AU ✓ 量产中Microchip Technology
ATMEGA6490V-8AUR - 8-bit AVR MCU 64KB LCD 8MHz TQFP-100 | Microchip
ATMEGA6490V-8AUR ✓ 量产中规格对比
| 参数 | ATMEGA640V-8AU | ATMEGA6490V-8AUR |
|---|---|---|
| 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 | $9.42 |
| Core Architecture | 8-bit AVR RISC | — |
| Max Clock Frequency | 8 MHz | — |
| Flash Memory | 64 KB (32K x 16) | 64 KB (32K x 16) ISP, read-while-write |
| SRAM | 8 KB | 4 KB |
| EEPROM | 4 KB | 2 KB |
| Supply Voltage Range | 1.8 V to 5.5 V | — |
| General Purpose I/O | 86 lines | — |
| Timers/Counters | 6 | — |
| USART Interfaces | 4 | — |
| Serial Interfaces | SPI, 2-wire (I2C-compatible), 4x USART | — |
| ADC | 10-bit, 16-channel | — |
| Analog Comparator | Yes, on-chip | — |
| Watchdog Timer | Yes, with separate on-chip oscillator | — |
| External Memory Interface | EBI/EMI | — |
| 封装 | 100-TQFP (14 x 14 mm) | 100-TQFP (14x14 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| Program Memory Type | ISP Flash | — |
| Series | AVR ATmega | — |
| RoHS 状态 | Compliant | [DATA_NEEDED: RoHS compliance status] |
| Core Processor | — | AVR 8-bit RISC |
| Core Size | — | 8-bit |
| Speed | — | 8 MHz |
| GPIO | — | 54 / 69 general purpose I/O lines |
| Working Registers | — | 32 x 8-bit general purpose |
| LCD Controller | — | Integrated segment LCD driver |
| Operating Voltage | — | 1.8 V to 5.5 V |
| Debug / Programming | — | JTAG (boundary-scan, on-chip debug, ISP) |
| Peripherals | — | Brown-out detect/reset, POR, picoPower |
| Connectivity | — | SPI, TWI (I2C), USART |
| Packing | — | Tape & Reel (R suffix) |
| Temperature Grade | — | [DATA_NEEDED: operating temperature range] |