ATSAMD21G18A-AU vs ATSAMD20G18A-AU 对比
详细并排对比 ATSAMD21G18A-AU 出自 Microchip Technology 和 ATSAMD20G18A-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。
Microchip Technology
ATSAMD21G18A-AU - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAMD21G18A-AU ✓ 量产中Microchip Technology
ATSAMD20G18A-AU - 48MHz Cortex-M0+ MCU 256KB Flash | Microchip
ATSAMD20G18A-AU ✓ 量产中规格对比
| 参数 | ATSAMD21G18A-AU | ATSAMD20G18A-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） | $2.78 | $2.84 |
| Core | ARM Cortex-M0+ (32-bit) | ARM Cortex-M0+ (32-bit) |
| Series | SAM D21G (Functional Safety / FuSa) | — |
| Maximum CPU Frequency | 48 MHz | — |
| CoreMark/MHz | 2.46 | — |
| Flash Memory | 256 KB (256K x 8) | — |
| SRAM | 32 KB | 32 KB |
| Operating Voltage Range | 1.62 V to 3.63 V | — |
| Programmable I/O Pins | Up to 52 | — |
| ADC | 14-channel, 12-bit | 12-bit, up to 350 ksps |
| DAC | 10-bit | 10-bit, 350 ksps |
| Peripheral Touch Controller (PTC) | Up to 256 channels (capacitive touch/proximity) | 256-channel capacitive touch |
| DMAC Channels | 12 | — |
| Event System Channels | 12 | — |
| Timer/Counters | Up to five 16-bit | — |
| Communication Peripherals (SERCOM) | Configurable as USART / SPI / I2C | — |
| Debug Interface | Serial Wire Debug (SWD), 2-pin | — |
| Sleep Modes | Idle, Standby with SleepWalking | — |
| 封装 | 48-pin TQFP (7x7 mm) | 48-pin TQFP (7x7 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| RoHS 状态 | Compliant (Green package) | Compliant |
| Family | — | SAM D20 (Atmel SMART) |
| Maximum CPU Clock | — | 48 MHz |
| CoreMark Score | — | 2.14 CoreMark/MHz |
| Flash Program Memory | — | 256 KB (256K x 8) |
| Operating Voltage (VDDIN) | — | 1.62 V to 3.63 V |
| GPIO Pins | — | 38 |
| Communication Peripherals | — | 6 SERCOM (USART/SPI/I2C), I2S, USB 2.0 FS (device) |
| Timers/Counters | — | TC (8-bit/16-bit/24-bit), RTC, WDT |
| 工作温度 | — | -40C to +85C (industrial, -AU suffix) |
| MSL 等级 | — | 3 (168 hours) |
| Programming/Debug | — | SWD, SAM-BA bootloader |