ATMEGA649A-AUR vs ATMEGA645P-AU 对比
详细并排对比 ATMEGA649A-AUR 出自 Microchip Technology 和 ATMEGA645P-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
ATMEGA649A-AUR - 8-Bit AVR MCU, 64KB Flash, TQFP-64 | Microchip
ATMEGA649A-AUR ✓ 量产中Microchip Technology
ATMEGA645P-AU - 8-bit AVR MCU 64KB Flash 16MHz TQFP-64 | Microchip
ATMEGA645P-AU ✓ 量产中规格对比
| 参数 | ATMEGA649A-AUR | ATMEGA645P-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） | $5.72 | $4.60 |
| Core Architecture | 8-bit AVR RISC | 8-bit AVR RISC |
| Flash Program Memory | 64 KB (32K x 16) | — |
| EEPROM | 2 KB | 2 KB |
| SRAM | 4 KB | 4 KB |
| Maximum Clock Speed | 16 MHz | — |
| Supply Voltage Range | 4.5 V to 5.5 V | 2.5 V to 5.5 V |
| I/O Ports | 53 general-purpose I/O lines | — |
| LCD Controller | Yes, on-chip with internal contrast control | — |
| JTAG Interface | Yes (boundary-scan, on-chip debug, programming) | — |
| Instructions | 130 instructions, most single-cycle | — |
| 封装 | 64-TQFP (14x14 mm) | 64-TQFP (14 x 14 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| Flash Programming | In-System Programmable (ISP), read-while-write | — |
| Operating Temperature Grade | Industrial | — |
| 数据总线宽度 | 8 bit | — |
| 生命周期状态 | Active | — |
| Flash Memory | — | 64 KB (32K x 16) ISP |
| 最大时钟频率 | — | 16 MHz |
| General Purpose I/O | — | 54 lines |
| Working Registers | — | 32 x 8-bit general purpose |
| 工作温度 | — | -40C to +85C (Industrial) |
| Programming Interface | — | ICSP (In-Circuit Serial Programming) |
| Debug Support | — | debugWIRE via MPLAB SNAP |
| Low Power Technology | — | picoPower |
| Approximate Throughput | — | up to 16 MIPS at 16 MHz (1 MIPS/MHz) |
| RoHS 状态 | — | Compliant (Green package per Microchip listings) |