• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

The TUSB2136 is an integrated universal serial bus (USB) hub with a general-purpose 8052 microcontroller that can be used for various USB controller applications. The TUSB2136 has 8K × 8 RAM space for application development. Using a 12-MHz crystal, the onboard oscillator generates the internal system clocks. No additional programming is required for any part of the hub functions. The device is programmed via an inter-IC (I²C) serial interface at power on from an EEPROM, or optionally, the application firmware can be downloaded from a host PC via USB. The 8052-based microprocessor allows several third-party standard tools to be used for application development. In addition, the application code available in the general market can also be used (this may or may not require some code modification due to hardware variations).

特性

• Multiproduct support with one code and one chip (up to 16 products with one chip)
• Fully compliant with the USB specification as a compound full-speed device: TID #30270119
• Supports 1.5 and 12 Mbits/s USB data rates
• Supports USB suspend/resume and remote wake-up operation
• Integrated two-port hub with individual power management per port
• Integrated 8052 microcontroller with:
  • 256 × 8 RAM for internal data
  • 8K × 8 RAM code space available for downloadable firmware from host or I²C port.
  • 512 × 8 shared RAM used for data buffers and endpoint descriptor blocks (EDB) [1]
  • Four 8052 GPIO ports (port 0, 1, 2 and 3)
  • Master I²C controller for external slave device access
  • Watchdog timer
• Operates from a 12-MHz crystal
• On-chip PLL generates 48 MHz
• Supports a total of three input and three output (interrupt, bulk) endpoints
• Power-down mode
• 64-pin TQFP package

[1] This is the buffer space for USB packet transactions.