ATMEGA640V-8AU vs ATMEGA640V-8AUR 对比
详细并排对比 ATMEGA640V-8AU 出自 Microchip Technology 和 ATMEGA640V-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
ATMEGA640V-8AUR - 8-bit AVR MCU 64KB Flash 8MHz TQFP-100 | Microchip
ATMEGA640V-8AUR ✓ 量产中规格对比
| 参数 | ATMEGA640V-8AU | ATMEGA640V-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 | $9.60 |
| Core Architecture | 8-bit AVR RISC | — |
| Max Clock Frequency | 8 MHz | — |
| Flash Memory | 64 KB (32K x 16) | — |
| SRAM | 8 KB | — |
| EEPROM | 4 KB | — |
| Supply Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| General Purpose I/O | 86 lines | — |
| Timers/Counters | 6 | Six flexible timer/counters |
| USART Interfaces | 4 | — |
| Serial Interfaces | SPI, 2-wire (I2C-compatible), 4x USART | — |
| ADC | 10-bit, 16-channel | — |
| Analog Comparator | Yes, on-chip | On-chip |
| Watchdog Timer | Yes, with separate on-chip oscillator | Programmable, separate on-chip oscillator |
| External Memory Interface | EBI/EMI | — |
| 封装 | 100-TQFP (14 x 14 mm) | 100-TQFP (14 x 14 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| Program Memory Type | ISP Flash | — |
| Series | AVR ATmega | — |
| RoHS 状态 | Compliant | Compliant (GREEN per FindIC listing) |
| Core Processor | — | AVR 8-bit RISC |
| Core Size | — | 8-bit |
| 最大时钟频率 | — | 8 MHz |
| Flash Memory Size | — | 64 KB (32K x 16) |
| SRAM Size | — | 8 KB |
| EEPROM Size | — | 4 KB |
| Number of I/O | — | 86 |
| ADC Resolution | — | 10-bit |
| ADC Channels | — | 8/16 |
| USART | — | 2/4 programmable serial USART |
| Connectivity | — | EBI/EMI, I2C (TWI), SPI, UART/USART |
| General Purpose Working Registers | — | 32 |
| Packaging | — | Tape & Reel (TR) |