ATMEGA168P-20AU vs ATMEGA168A-AU 对比
详细并排对比 ATMEGA168P-20AU 出自 Microchip Technology 和 ATMEGA168A-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。
规格对比
| 参数 | ATMEGA168P-20AU | ATMEGA168A-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） | $2.91 | $1.42 |
| Core Processor | AVR 8-bit RISC | — |
| Program Memory Size | 16 KB (8K x 16) Flash | 16 KB (8K x 16) Flash |
| EEPROM Size | 512 B | 512 B |
| SRAM Size | 1 KB | 1 KB |
| 最大时钟频率 | 20 MHz | 20 MHz |
| Operating Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Number of I/O Lines | 23 | 23 |
| General Purpose Registers | 32 | 32 |
| Instruction Set | 133 instructions, most single-cycle | 131 instructions, most single-cycle |
| ADC Resolution | 10-bit | 10-bit |
| Timer/Counters | 3 (two 8-bit, one 16-bit) with compare modes | — |
| Serial Interfaces | USART, SPI, TWI (I2C) | USART, SPI, Two-Wire (I2C) |
| 封装 | 32-TQFP (7x7 mm) | 32-TQFP (7x7 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度 | -40 C to +85 C (industrial) | -40 C to +85 C |
| Programming Interface | ISP / ICSP (SPI-based) | — |
| RoHS 状态 | Compliant (GREEN) | Compliant |
| Supply Current (Active) | [DATA_NEEDED: active supply current] | [DATA_NEEDED: active supply current] |
| Core Architecture | — | 8-bit AVR RISC |
| Program Memory Type | — | Flash (ISP, read-while-write) |
| Timers/Counters | — | 3 (two 8-bit, one 16-bit) with compare modes |
| Sleep Modes | — | 6 (Idle, ADC Noise Reduction, Power-save, Power-down, Standby, Extended Standby) |
| Lifecycle Stage | — | Active |