ATMEGA3290PA-AUR vs ATMEGA649A-AUR 对比
详细并排对比 ATMEGA3290PA-AUR 出自 Microchip Technology 和 ATMEGA649A-AUR 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
ATMEGA3290PA-AUR - 8-Bit AVR MCU 32KB 20MHz TQFP-100 | Microchip
ATMEGA3290PA-AUR ✓ 量产中Microchip Technology
ATMEGA649A-AUR - 8-Bit AVR MCU, 64KB Flash, TQFP-64 | Microchip
ATMEGA649A-AUR ✓ 量产中规格对比
| 参数 | ATMEGA3290PA-AUR | ATMEGA649A-AUR |
|---|---|---|
| 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） | $2.95 | $5.72 |
| Core Processor | AVR | — |
| Core Size | 8-Bit | — |
| Program Memory Type | FLASH | — |
| Program Memory Size | 32KB (16K x 16) | — |
| RAM Size | 2KB | — |
| EEPROM Size | 1KB | — |
| 最大时钟频率 | 20 MHz | — |
| Supply Voltage Range | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Instruction Set | 131 powerful instructions, most single-clock cycle | — |
| LCD Driver | 4 x 40 Segment LCD Driver | — |
| Timers | Two 8-bit timer/counters with separate prescaler and compare mode; one 16-bit timer/counter | — |
| 封装 | TQFP-100 (14x14 mm), 0.8 mm pitch | 64-TQFP (14x14 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | -40C to +85C (Industrial) | — |
| Programming Method | In-System Programmable (ISP), self-programming Flash | — |
| Power Modes | Idle, Power-save, Power-down, Standby, Extended Standby (picoPower) | — |
| RoHS 状态 | Green / Compliant (per FindIC listing) | — |
| Core Architecture | — | 8-bit AVR RISC |
| Flash Program Memory | — | 64 KB (32K x 16) |
| EEPROM | — | 2 KB |
| SRAM | — | 4 KB |
| Maximum Clock Speed | — | 16 MHz |
| 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 |
| 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 |