ATMEGA48-20AI vs ATMEGA168-20AU 对比
详细并排对比 ATMEGA48-20AI 出自 Microchip Technology 和 ATMEGA168-20AU 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
ATMEGA48-20AI - 8-bit AVR MCU, 4KB Flash, 20MHz | Microchip
ATMEGA48-20AI ✓ 量产中Microchip Technology
ATMEGA168-20AU - 8-Bit AVR MCU 16KB Flash 20MHz | Microchip
ATMEGA168-20AU ✓ 量产中规格对比
| 参数 | ATMEGA48-20AI | ATMEGA168-20AU |
|---|---|---|
| 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） | $0.82 | $1.82 |
| Core Architecture | AVR 8-bit RISC | 8-bit AVR RISC |
| Flash Program Memory | 4 KB (2K x 16), ISP self-programming | — |
| SRAM | 512 B | 1 KB |
| EEPROM | 256 B | 512 B |
| Maximum CPU Speed | 20 MHz (up to 20 MIPS) | — |
| Supply Voltage Range | 1.8 V to 5.5 V | 2.7 V to 5.5 V |
| GPIO Count | 23 general purpose I/O lines | — |
| ADC | 8-channel, 10-bit | 8-channel, 10-bit successive approximation |
| Timer/Counters | 3 (two 8-bit, one 16-bit) | — |
| Serial Interfaces | SPI, TWI (I2C-compatible), USART | USART, SPI, TWI (I2C) |
| On-Chip Debug | debugWIRE | debugWIRE |
| 工作温度 | -40C to +85C (Industrial) | -40C to +85C |
| 封装 | 32-TQFP, 7x7 mm, square, gull-wing leads | 32-TQFP (7x7 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| Temperature Grade | Industrial | — |
| RoHS 状态 | Green (per distributor data) | Compliant |
| Program Memory | — | 16 KB In-System Programmable Flash |
| 最大时钟频率 | — | 20 MHz |
| Throughput | — | 20 MIPS at 20 MHz |
| General Purpose I/O Lines | — | 23 |
| General Purpose Working Registers | — | 32 x 8-bit |
| Timers | — | 2 x 8-bit, 1 x 16-bit with PWM |
| Instruction Set | — | 131 powerful instructions, most single clock cycle |