ATSAMD21E18A-MU vs ATSAMD20E18A-MU 对比
详细并排对比 ATSAMD21E18A-MU 出自 Microchip Technology 和 ATSAMD20E18A-MU 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
ATSAMD21E18A-MU - 48MHz Cortex-M0+ MCU, 256KB Flash | Microchip
ATSAMD21E18A-MU ✓ 量产中Microchip Technology
ATSAMD20E18A-MU - 48MHz ARM Cortex-M0+ 256KB Flash MCU | Microchip
ATSAMD20E18A-MU ✓ 量产中规格对比
| 参数 | ATSAMD21E18A-MU | ATSAMD20E18A-MU |
|---|---|---|
| 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） | $2.27 | $2.75 |
| Core | ARM Cortex-M0+ 32-bit | ARM Cortex-M0+ |
| Family | SAM D21E (SAMD21E18A) | — |
| Functional Safety | FuSa (IEC 60730 Class B) variant | — |
| Max CPU Clock | 48 MHz | — |
| CoreMark | 2.46 CoreMark/MHz | — |
| Flash Memory | 256 KB | — |
| SRAM | 32 KB | 32 KB (32K x 8) |
| Operating Voltage (VDD) | 1.6 V to 3.6 V | — |
| 封装 | 32-pin VQFN (5x5 mm) with EP | 32-VQFN (5x5 mm) with Exposed Pad |
| 引脚数量 | 32 | — |
| 安装类型 | Surface Mount | Surface Mount |
| ADC | 12-bit, up to 20 channels, 350 ksps | — |
| DAC | 10-bit, 1 channel | — |
| Analog Comparators | 2 | — |
| SERCOM Channels | Up to 6 (UART/SPI/I2C configurable) | — |
| USB | USB 2.0 Full-Speed Device/Host with on-chip transceiver | Full-Speed USB 2.0 Device (per SAM D20 family) |
| PTC (Touch) | Up to 256 channels (Peripheral Touch Controller) | — |
| DMA Channels | 24 | — |
| Event System Channels | 12 | — |
| RTC | Yes, 32-bit RTC | — |
| 工作温度 | -40 C to +85 C (Industrial) | -40 C to +85 C |
| RoHS 状态 | Compliant | — |
| MSL 等级 | [DATA_NEEDED: MSL moisture sensitivity level] | MSL3 (per Microchip package profile) |
| Bootloader | On-chip ROM (UART/USB bootloader) | — |
| Core Architecture | — | ARM 32-bit |
| Instruction Set | — | Thumb/Thumb-2 |
| Maximum CPU Frequency | — | 48 MHz |
| Program Memory (Flash) | — | 256 KB (256K x 8) |
| Supply Voltage (Vdd) | — | 1.62 V to 3.63 V |
| I/O Voltage | — | 3.3 V (typ) |
| Performance | — | 2.14 CoreMark/MHz |
| Peripheral Touch Controller (PTC) | — | Yes |
| SERCOM Modules | — | Up to 6 (I2C/SPI/UART configurable) |
| ADC / DAC | — | 12-bit ADC / 10-bit DAC (per SAM D20 family) |
| Lead-Free / RoHS | — | Yes / Compliant (per Microchip product page) |
| Moisture Sensitivity Floor Life | — | 168 hours |