ATSAMD21G18A-AU vs ATSAM3U4EA-CU 对比
详细并排对比 ATSAMD21G18A-AU 出自 Microchip Technology 和 ATSAM3U4EA-CU 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
ATSAM3U4EA-CU - 96MHz Cortex-M3 MCU 256KB Flash LFBGA-144 | Microchip
ATSAM3U4EA-CU ✓ 量产中规格对比
| 参数 | ATSAMD21G18A-AU | ATSAM3U4EA-CU |
|---|---|---|
| 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 | $12.05 |
| Core | 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 | 52 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 |
| DAC | 10-bit | — |
| Peripheral Touch Controller (PTC) | Up to 256 channels (capacitive touch/proximity) | — |
| 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) | 144-ball LFBGA (10x10 mm) |
| 安装类型 | Surface Mount | Surface Mount (BGA) |
| RoHS 状态 | Compliant (Green package) | — |
| Core Architecture | — | ARM Cortex-M3 (32-bit RISC) |
| Maximum CPU Clock | — | 96 MHz |
| Instruction Set | — | Thumb-2 |
| Program Memory | — | 256 KB Flash (dual-bank, 128-bit wide access) |
| Operating Voltage | — | 1.8 V / 3.3 V |
| USB | — | High-Speed USB 2.0 Device (480 Mbps, integrated transceiver) |
| Memory Card Interface | — | High-Speed MCI (SDIO/SD/MMC) |
| External Bus Interface | — | Yes (EBI - SRAM, NOR, NAND) |
| Memory Protection Unit | — | Yes (MPU) |
| GPIOs | — | Up to 96 |
| 工作温度 | — | -40°C to +85°C |