ATSAME70N21B-CNT vs ATSAME70N21A-CNT 对比
详细并排对比 ATSAME70N21B-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
ATSAME70N21B-CNT - 300MHz Cortex-M7 MCU 2MB Flash | Microchip
ATSAME70N21B-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 | ATSAME70N21B-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） | $9.28 | $8.85 |
| Core Architecture | ARM Cortex-M7 with FPU | — |
| Maximum CPU Clock | 300 MHz | 300 MHz |
| Flash Memory | 2 MB (2048 KB) | 2 MB (2048 KB) |
| SRAM | 384 KB multi-port | 384 KB |
| Instruction Cache | 16 KB | — |
| Data Cache | 16 KB | — |
| 封装 | 100-pin TFBGA (9x9 mm) | 100-pin TFBGA, 9x9 mm, 0.8 mm pitch |
| Operating Voltage | 1.62 V to 3.6 V | — |
| Supply Voltage (VDDIO) | 1.62 V to 3.6 V | — |
| 工作温度 | -40C to +105C (industrial) | -40C to +105C (industrial) |
| ADC | 12-bit, up to 2 Msps | 12-bit, up to 2 MSPS, 24 channels |
| DAC | 12-bit, dual-channel | — |
| USB | USB 2.0 High-Speed with on-chip PHY | — |
| Ethernet | 10/100 MAC with IEEE 1588 | — |
| CAN | 2x CAN-FD controllers | — |
| External Bus Interface | 16-bit SDRAM up to 150 MHz | — |
| Display Controller | TFT LCD with 2D graphics accelerator | TFT LCD controller with 2D acceleration |
| RoHS 状态 | Compliant | ROHS3 Compliant |
| Core | — | ARM Cortex-M7 with FPU (single + double precision) |
| 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 |
| Crypto Accelerator | — | AES-256, SHA-256, TRNG hardware |
| 安装类型 | — | Surface Mount (BGA) |
| MSL 等级 | — | 3 (168 hours) |
| Manufacturer Lead Time | — | 8 weeks (as of 2026-09-22) |