ATSAMA5D28B-CN vs ATSAMA5D28A-CN 对比
详细并排对比 ATSAMA5D28B-CN 出自 Microchip Technology 和 ATSAMA5D28A-CN 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
ATSAMA5D28B-CN - Cortex-A5 500MHz MPU, 128MB DDR2 | Microchip
ATSAMA5D28B-CN ✓ 量产中Microchip Technology
ATSAMA5D28A-CN - 500MHz Cortex-A5 MPU, 289-LFBGA | Microchip
ATSAMA5D28A-CN ✓ 量产中规格对比
| 参数 | ATSAMA5D28B-CN | ATSAMA5D28A-CN |
|---|---|---|
| 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） | $17.95 | $11.40 |
| Core Architecture | Arm Cortex-A5 (Armv7-A) | ARM Cortex-A5 (32-bit) with NEON and FPU |
| Maximum CPU Clock | 500 MHz | 500 MHz |
| FPU | VFPv4 (single/double precision) | — |
| L1 Instruction Cache | 32 Kbytes | — |
| L1 Data Cache | 32 Kbytes | — |
| L2 Cache | 128 Kbytes (configurable as SRAM) | — |
| MMU | Yes (full translation) | — |
| TrustZone | Yes (Arm TrustZone) | — |
| NEON Media Engine | Yes (SIMD) | — |
| Integrated DRAM | 128 Mbytes DDR2/DDR3L/LPDDR2/LPDDR3 controller | — |
| External Memory Bus | 16-bit ECC-capable | — |
| USB Controllers | 2x USB 2.0 High-Speed (Host/Device) | — |
| Ethernet | 10/100 MAC with IEEE 1588 + GMAC | Dual 10/100/1000 GMAC with 1588 PTP |
| CAN | 2x CAN-FD | Dual CAN-FD |
| SD/MMC | 3x SD/SDIO/MMC/e.MMC | — |
| UART / SPI / I2C | Multiple instances (peripheral multiplexing) | — |
| Crypto Accelerator | AES, SHA, TRNG, secure boot | — |
| 工作温度 | -40 C to +85 C (industrial) | -40C to +85C (Industrial) |
| 电源电压 | 3.3 V I/O, 1.2 V core (internal LDO) | 1.2 V (core) |
| 封装 | 289-ball LFBGA, 14 mm x 14 mm | 289-LFBGA (14x14 mm, 0.8 mm pitch) |
| 安装类型 | Surface Mount (BGA) | Surface Mount (BGA) |
| MSL 等级 | 3 (168 hours) | — |
| RoHS 状态 | Compliant | Compliant |
| Number of Cores | — | 1 |
| Internal SRAM | — | 128 KB |
| External Memory Support | — | DDR2 / DDR3L / LPDDR2 / LPDDR3 |
| Backup Mode Current | — | 5 uA (RTC retention) |
| Display Controller | — | LCD up to WXGA (1280x720) |
| Image Sensor Interface | — | Hardware ISI |
| USB | — | USB 2.0 Host + Device |
| Storage Interfaces | — | QSPI, e.MMC, SD/MMC, NAND |