ATMEGA48-20AU vs ATMEGA48-20AI 对比
详细并排对比 ATMEGA48-20AU 出自 Microchip Technology 和 ATMEGA48-20AI 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 ✓ 量产中规格对比
| 参数 | ATMEGA48-20AU | ATMEGA48-20AI |
|---|---|---|
| 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 | $0.82 |
| Core Architecture | 8-bit AVR RISC (enhanced) | AVR 8-bit RISC |
| Program Memory (Flash) | 4 KB (2K x 16) | — |
| EEPROM | 256 B | 256 B |
| SRAM | 512 B | 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 | 8-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, square, gull-wing leads |
| 工作温度 | -40C to +85C (industrial) | -40C to +85C (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 | Green (per distributor data) |
| Flash Program Memory | — | 4 KB (2K x 16), ISP self-programming |
| Maximum CPU Speed | — | 20 MHz (up to 20 MIPS) |
| Supply Voltage Range | — | 1.8 V to 5.5 V |
| GPIO Count | — | 23 general purpose I/O lines |
| Serial Interfaces | — | SPI, TWI (I2C-compatible), USART |
| On-Chip Debug | — | debugWIRE |
| 安装类型 | — | Surface Mount |
| Temperature Grade | — | Industrial |