ATMEGA48-20AU vs ATMEGA48PA-AU 对比
详细并排对比 ATMEGA48-20AU 出自 Microchip Technology 和 ATMEGA48PA-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 | ATMEGA48-20AU | ATMEGA48PA-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） | $1.68 | $1.38 |
| Core Architecture | 8-bit AVR RISC (enhanced) | — |
| Program Memory (Flash) | 4 KB (2K x 16) | — |
| EEPROM | 256 B | — |
| SRAM | 512 B | — |
| Maximum CPU Frequency | 20 MHz | — |
| Throughput | Up to 20 MIPS | — |
| Supply Voltage (Vcc) | 4.5 V to 5.5 V | — |
| I/O Pins | 23 | — |
| ADC | 6-channel, 10-bit | — |
| Timer/Counters | 3 (2x 8-bit, 1x 16-bit) | 3 (two 8-bit, one 16-bit) |
| Communication Interfaces | USART, SPI, TWI (I2C) | — |
| 封装 | 32-pin TQFP (7x7 mm, 0.8 mm pitch) | 32-TQFP (7x7 mm) |
| 工作温度 | -40C to +85C (industrial) | -40 C to +85 C (industrial) |
| On-chip Debug | debugWIRE | — |
| In-System Programming | Yes (SPI) | — |
| Sleep Modes | 6 (Idle, ADC NR, Power-save, Power-down, Standby, Ext Standby) | — |
| Watchdog Timer | Programmable, with on-chip oscillator | — |
| RoHS 状态 | Compliant | Compliant |
| Core Processor | — | AVR 8-bit RISC |
| Program Memory Size | — | 4 KB (2K x 16) Flash |
| EEPROM Size | — | 256 B |
| SRAM Size | — | 512 B |
| 最大时钟频率 | — | 20 MHz |
| Operating Voltage Range | — | 1.8 V to 5.5 V |
| Supply Voltage (5V operation) | — | 4.5 V to 5.5 V |
| Number of I/O Lines | — | 23 |
| General Purpose Working Registers | — | 32 |
| Instruction Set | — | 131 instructions, most single-cycle |
| ADC Resolution | — | 10-bit |
| ADC Channels | — | 8 |
| 安装类型 | — | Surface Mount |
| Flash Write/Erase Cycles | — | 10,000 |
| EEPROM Write Cycles | — | 100,000 |