ATSAME70Q21B-AN vs ATSAME70Q21A-AN 对比
详细并排对比 ATSAME70Q21B-AN 出自 Microchip Technology 和 ATSAME70Q21A-AN 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
ATSAME70Q21B-AN - ARM Cortex-M7 MCU 300MHz 2MB Flash | Microchip
ATSAME70Q21B-AN ✓ 量产中Microchip Technology
ATSAME70Q21A-AN - 300MHz Cortex-M7 MCU 2MB Flash | Microchip
ATSAME70Q21A-AN ✓ 量产中规格对比
| 参数 | ATSAME70Q21B-AN | ATSAME70Q21A-AN |
|---|---|---|
| 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） | $17.40 | $11.78 |
| Core | ARM Cortex-M7 with FPU and DSP extensions | — |
| 最大时钟频率 | 300 MHz | 300 MHz |
| Program Memory | 2 MB (2048 Kbytes) Flash | — |
| Data Memory | 384 KB SRAM | — |
| Operating Voltage Range | 1.62 V to 3.6 V (VDDIO), 1.2 V (VDDCORE) | 1.62 V to 3.6 V |
| 封装 | 144-pin LQFP (20 x 20 mm) | 144-LQFP (20x20 mm) |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度范围 | -40 C to +105 C (industrial) | -40C to +85C |
| ADC | 12-bit, up to 2 MSPS | 12-bit, up to 2 MSPS, 24 channels |
| High-Speed USB | USB Host + Device with on-chip HS PHY | — |
| Ethernet | GMAC (10/100) with IEEE 1588 PTP | 10/100 Mbps MAC (MII/RMII) |
| CAN-FD Controllers | 2 | — |
| External Memory Interface | EBI with 16-bit data bus, SDRAM/NAND/NOR support | — |
| Image Sensor Interface (ISI) | Yes | — |
| Hardware AES | Yes (AES-256) | — |
| True Random Number Generator (TRNG) | Yes | — |
| DMA Channels | 16 (two 8-channel XDMAC) | — |
| RoHS 状态 | ROHS3 Compliant | Compliant |
| Core Architecture | — | ARM Cortex-M7 with FPU |
| Program Memory (Flash) | — | 2 MB (2048 KB) dual-bank |
| SRAM | — | 384 KB |
| CoreMark Performance | — | 1500 CoreMark / 300 DMIPS |
| Instruction Cache (I-cache) | — | 16 KB |
| Data Cache (D-cache) | — | 16 KB |
| USB Interface | — | HS USB Host/Device with on-chip PHY |
| CAN Interface | — | 2x CAN-FD |
| Image Sensor Interface | — | Yes (ISI, up to 12-bit) |
| External Bus Interface | — | 16-bit EBI with SDRAM controller |
| Hardware Cryptography | — | AES-256, True Random Number Generator (TRNG) |
| MSL 等级 | — | 3 (168 hours) |