ATSAME70N20A-CNT vs ATSAME70N21A-CNT 对比
详细并排对比 ATSAME70N20A-CNT 出自 Microchip Technology 和 ATSAME70N21A-CNT 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
ATSAME70N20A-CNT - 300MHz Cortex-M7 MCU 1MB Flash | Microchip
ATSAME70N20A-CNT ✓ 量产中Microchip Technology
ATSAME70N21A-CNT - 300MHz Cortex-M7 MCU 2MB Flash | Microchip
ATSAME70N21A-CNT ✓ 量产中规格对比
| 参数 | ATSAME70N20A-CNT | ATSAME70N21A-CNT |
|---|---|---|
| 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） | $8.85 | $8.85 |
| Core Architecture | ARM Cortex-M7 with FPU (single + double precision) | — |
| 最大时钟频率 | 300 MHz | — |
| Core Performance | 1500 CoreMark / 600 DMIPS | — |
| Flash Memory | 1024 KB (1 MB) | 2 MB (2048 KB) |
| SRAM | 384 KB | 384 KB |
| Instruction Cache | 16 KB | — |
| Data Cache | 16 KB | — |
| Tightly-Coupled Memory (TCM) | Yes (ITCM + DTCM) | — |
| Operating Voltage | 1.62 V to 3.6 V (core 1.2 V internal) | — |
| 封装 | 100-pin TFBGA (9x9 mm) | 100-pin TFBGA, 9x9 mm, 0.8 mm pitch |
| 工作温度 | -40 C to +105 C (industrial) | -40C to +105C (industrial) |
| 安装类型 | Surface Mount (Tape & Reel, CNT suffix) | Surface Mount (BGA) |
| Supply Voltage Range | 3.0 V to 3.6 V typical (VDDIO/VDDIN) | — |
| USB Interface | USB 2.0 High-Speed PHY integrated | — |
| Ethernet | 10/100 Mbps MAC (GMII/RMII/MII) | — |
| CAN Interface | CAN-FD x2 | — |
| ADC | 12-bit, up to 2 MSPS, 24 channels | 12-bit, up to 2 MSPS, 24 channels |
| External Bus Interface (EBI) | 16-bit, supports SRAM/SDRAM/NOR up to 128 MB | — |
| RoHS 状态 | Compliant | ROHS3 Compliant |
| MSL 等级 | 3 (168 hours) | 3 (168 hours) |
| Core | — | ARM Cortex-M7 with FPU (single + double precision) |
| Maximum CPU Clock | — | 300 MHz |
| Instruction Cache (I-Cache) | — | 16 KB |
| Data Cache (D-Cache) | — | 16 KB |
| CoreMark Score | — | 1500 (typical) |
| Supply Voltage (VDDIO/VDDCORE) | — | 3.3 V (typical); 1.2 V core |
| Communication | — | Ethernet MAC, HS USB PHY, 2x CAN-FD, 4x UART, 5x SPI, 3x I2C, I2S |
| Display Controller | — | TFT LCD controller with 2D acceleration |
| Crypto Accelerator | — | AES-256, SHA-256, TRNG hardware |
| Manufacturer Lead Time | — | 8 weeks (as of 2026-09-22) |