ATMEGA649V-8AUR vs ATMEGA645A-AU 对比
详细并排对比 ATMEGA649V-8AUR 出自 Microchip Technology 和 ATMEGA645A-AU 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
ATMEGA649V-8AUR - 8MHz AVR MCU 64KB Flash LCD | Microchip
ATMEGA649V-8AUR ✓ 量产中Microchip Technology
ATMEGA645A-AU - 8-bit AVR MCU 64KB Flash 16MHz TQFP-64 | Microchip
ATMEGA645A-AU ✓ 量产中规格对比
| 参数 | ATMEGA649V-8AUR | ATMEGA645A-AU |
|---|---|---|
| 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） | $4.88 | $3.95 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Program Memory Size | 64KB (32K x 16) Flash | — |
| EEPROM Size | 2KB | — |
| SRAM Size | 4KB | — |
| 最大时钟频率 | 8 MHz | — |
| Supply Voltage Range | 1.8 V to 5.5 V | — |
| General Purpose I/O | 54 I/O lines | 54 GPIO |
| LCD Driver | Segment LCD controller (up to 4x40 / 132 segments per datasheet) | — |
| JTAG Interface | Yes (boundary-scan and on-chip debug) | — |
| 封装 | 64-TQFP (14x14 mm) | 64-TQFP (14x14 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (R suffix) | — |
| RoHS 状态 | Compliant | Compliant |
| 生命周期状态 | Active (newer device available: ATMEGA649A) | — |
| 工作温度 | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| ADC Resolution | [DATA_NEEDED: ADC resolution and channels] | — |
| Timers | [DATA_NEEDED: timer peripheral count and sizes] | 2 x 8-bit, 1 x 16-bit (plus watchdog) |
| Communication Interfaces | [DATA_NEEDED: USART/SPI/TWI count] | USART, SPI, TWI (I2C) |
| MIPS Rating | [DATA_NEEDED: MIPS at 8 MHz] | — |
| MSL Rating | [DATA_NEEDED: moisture sensitivity level] | — |
| Max CPU Frequency | — | 16 MHz |
| Flash Memory | — | 64 KB (32K x 16) In-System Programmable |
| EEPROM | — | 2 KB |
| SRAM | — | 4 KB |
| 电源电压 | — | 4.5 V to 5.5 V (16 MHz operation) |
| ADC | — | 10-bit, up to 8 channels |
| LCD Controller | — | Yes, up to 4 COM x 25 SEG |
| 引脚数 | — | 64 |
| MSL 等级 | — | [DATA_NEEDED: moisture sensitivity level] |