ATMEGA640V-8AU vs ATMEGA6450V-8AU 对比
详细并排对比 ATMEGA640V-8AU 出自 Microchip Technology 和 ATMEGA6450V-8AU 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
ATMEGA6450V-8AU - 8-bit AVR MCU, 64KB Flash, 8MHz | Microchip
ATMEGA6450V-8AU ✓ 量产中规格对比
| 参数 | ATMEGA640V-8AU | ATMEGA6450V-8AU |
|---|---|---|
| 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 | $2.31 |
| Core Architecture | 8-bit AVR RISC | AVR 8-bit RISC |
| Max Clock Frequency | 8 MHz | — |
| Flash Memory | 64 KB (32K x 16) | 64KB (32K x 16), In-System Programmable |
| SRAM | 8 KB | 4KB |
| EEPROM | 4 KB | 2KB |
| 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 (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 package per Microchip classification) |
| 数据总线宽度 | — | 8 Bit |
| Maximum Clock Speed | — | 8 MHz |
| ADC Resolution | — | 10-bit |
| I/O Ports | — | 53 I/O lines |
| 电源电压 | — | 1.8 V (V-variant extended low-voltage range) |
| Instructions | — | 130 powerful instructions, most single-cycle |
| In-System Programming | — | Yes (ICSP) |
| 工作温度 | — | -40C to +85C (A-grade industrial) |
| Life Cycle Stage | — | ACTIVE |
| LCD Controller | — | Integrated segment LCD drive (6450 family) |