ADSP-BF512 :Low Power Blackfin with Consumer Devices Connectivity
The ADSP-BF512 is the low cost entry point into the Blackfin Processor family. It offers an optimal balance between performance, peripheral integration, and price and is well suited for the most cost-sensitive applications including portable test equipment, embedded modems, biometrics, and consumer audio. The high performance 16/32-bit Blackfin embedded processor core, the flexible cache architecture, the enhanced DMA subsystem, and the dynamic power management (DPM) functionality allow system designers a flexible platform to address a wide range of applications.
IP protection has become a necessary part of today’s embedded computing applications. The ADSP-BF512 provides a security scheme which balances flexibility and upgradeability with performance through the inclusion of a firmware-based solution including OTP (One Time Programmable) memory to enable users to implement private keys for secure access to program code.
- Blackfin processor core with up to 400 MHz (800 MMACS) performance
- 2 dual-channel, full-duplex synchronous serial ports supporting 8 stereo I2S channels
- 12 peripheral DMA channels supporting one- and two-dimensional data transfers
- Lockbox™ Secure Technology: Hardware-enabled security for code and content protection
- Memory controller providing glue-less connection to multiple banks of external SDRAM, SRAM, Flash, or ROM
- 176-p, 0.5 mm pitch, 24 X 24 LQFP is offered in Commercial Temp. (0C to +70C) and Industrial Temp (-40C to +85C)
- 168-ball BGA package is offered in Commercial Temp. (0C to +70C) and Industrial Temp (-40C to +85C)
MSP430F5438A :
1.1 特性
-
- 低电源电压范围: 3.6V 到低至 1.8V
- 超低功耗
- 激活模式 (AM): 所有系统时钟激活 在 8MHz、3.0V 且闪存程序执行时为 230µA/MHz(典型值) 在 8MHz、3.0V 且 RAM 程序执行时为 110µA/MHz(典型值)
- 待机模式 (LPM3): 带有晶振的实时时钟 (RTC),看门狗和电源监视器工作,完全 RAM 保持,快速唤醒: 2.2V 时为 1.7µA,3.0V 时为 2.1µA(典型值) 低功耗振荡器 (VLO),通用计数器,看门狗和电源监视器工作,完全 RAM 保持,快速唤醒: 3.0V 时为 1.2µA(典型值)
- 关闭模式 (LPM4): 完全 RAM 保持、电源监控器工作、快速唤醒: 3.0V 时为 1.2µA(典型值)
- 关断模式 (LPM4.5): 3.0V 时为 0.1µA(典型值)
- 在 3.5µs(典型值)内从待机模式唤醒
- 16 位精简指令集 (RISC) 架构
- 扩展存储器
- 高达 25MHz 系统时钟
- 灵活的电源管理系统
- 内置可编程的低压降稳压器 (LDO)
- 电源电压监控、监视、和临时限电
- 统一时钟系统
- 针对频率稳定的锁相环 (FLL) 控制环路
- 低功耗低频内部时钟源 (VLO)
- 低频修整内部基准源 (REFO)
- 32kHz 晶振
- 高达 32MHz 的高频晶振
- 具有 5 个捕捉/比较寄存器的 16 位定时器 TA0,Timer_A
- 具有 3 个捕捉/比较寄存器的 16 位定时器 TA1,Timer_A
- 具有 7 个捕捉/比较影子寄存器的 16 位定时器 TB0,Timer_B
- 多达 4 个通用串行通信接口 (USCI)
- USCI_A0、USCI_A1、USCI_A2 和 USCI_A3 均支持:
- 增强型通用异步收发器 (UART) 支持自动波特率检测
- IrDA 编码和解码
- 同步串行外设接口 (SPI)
- USCI_B0、USCI_B1、USCI_B2 和 USCI_B3 均支持:
- I2C
- 同步串行外设接口 (SPI)
- USCI_A0、USCI_A1、USCI_A2 和 USCI_A3 均支持:
- 12 位模数转换器 (ADC)
- 内部基准电压
- 采样保持
- 自动扫描特性
- 14 个外部通道,2 个内部通道
- 硬件乘法器支持 32 位运算
- 串行板上编程,无需外部编程电压
- 3 通道内部 DMA
- 具有 RTC 特性的基本计时器
- 汇总了可用的产品系列成员