产品概览
The ADSP-BF531SBSTZ400 from Analog Devices is a 400MHz 16-bit fixed-point Blackfin embedded processor in a 176-lead LQFP (24 x 24mm) package. With 52KB on-chip L1 memory, dual MAC units (800 MMACs), and rich peripherals including 2 SPORTs, UART, SPI, and 12 DMA channels, it delivers cost-effective DSP performance.
主要规格
| 核心 | Blackfin (MSA architecture, 16-bit fixed-point) |
| Max Clock Frequency | 400 MHz |
| Peak Performance | 800 MMACs |
| L1 Instruction Memory | 32KB (16KB SRAM + 16KB SRAM/Cache) |
| L1 Data Memory | 20KB (16KB SRAM/Cache + 4KB scratchpad) |
| L1 Total | 52KB |
| Boot ROM | 1KB |
| DMA Channels | 12 (1D and 2D) |
| Serial Ports (SPORTs) | 2 (dual-channel, full-duplex, 8 stereo I2S) |
| SPI | 1 |
| UART | 1 (with IrDA) |
| 计时器 | 3 general-purpose + 1 watchdog + RTC |
| GPIO | 16 |
| External Memory | SDRAM, SRAM, Flash, ROM (glueless) |
| Core Voltage | 1.2V (internal regulator from VDDEXT) |
| I/O Voltage | 3.3V |
| 工作温度 | -40 to +85°C |
| 包装 | LQFP-176 (SBST suffix, 24 x 24mm) |
特点
- 400MHz Blackfin DSP with dual 40-bit MAC units
- 800 MMACs peak performance
- 52KB L1 memory (instruction + data + scratchpad)
- On-chip voltage regulator (core from I/O supply)
- 2 SPORTs with 8 stereo I2S channels
- Parallel Peripheral Interface (ITU-R 656 video)
- 12 DMA channels (1D and 2D)
- External memory controller (SDRAM, SRAM, Flash, ROM)
- Dynamic power management (0.8V to 1.2V core)
- PLL with 1× to 63× multiplication
- Pin and code compatible with BF532/BF533
应用
- Portable test equipment
- Embedded modems
- Biometric systems
- Consumer audio processing
- Multi-channel audio with CIF video