Universal Serial Bus Compound Hub With Integrated Keyboard Controller

The ISP1130 integrates a Universal Serial Bus (USB) hub with a keyboard controller into a single chip, which complies with Universal Serial Bus Specication Rev. 1.1 and the USB Device Class Denition for Human Interface Devices (HID). The hub has 1 to 2 downstream ports and 1 to 3 non-removable embedded functions, one of which is dedicated to the keyboard operation. The hub controller is fully implemented in hardware, ensuring a fast response to host requests. The integrated 5 V to 3.3 V Regulator allows direct connection to the USB power supply VBUS. The downstream ports are either bus-powered or hybrid-powered and CAN Interface low-power USB devices such as a joystick or a mouse. ISP1130 uses SoftConnect technology to connect to the USB host upon detection of VBUS. The low power consumption in suspend mode allows easy design of equipment that is compliant with the ACPI, OnNow and USB Power Management requirements. The integrated keyboard controller is based on the 80C51 family and has 8 kbytes of mask ROM and 256 bytes of data RAM. The code memory is protected against reading by an external device. A built-in watchdog Timer resets the device in case of a Microcontroller hang-up. To reduce power consumption, the Microcontroller CAN be put in sleep mode or power-down mode. A serial I 2C-bus Interface is provided for optional access to an external EEPROM This allows the user to program the vendor ID, product ID or activate the built-in keyboard matrix. The ISP1130 has built-in overcurrent sense inputs, supporting individual and global overcurrent protection for downstream ports. All ports (including the hub) have GoodLink indicator outputs for easy visual monitoring of USB trafc. The ISP1130 has a reduced frequency (6 MHz) crystal Oscillator to minimize Electro Magnetic Interference (EMI). These features allow signicant cost savings in system design and easy implementation of advanced USB functionality into PC peripherals. By NXP Semiconductors
ISP1130 's PackagesISP1130 's pdf datasheet

ISP1130 Pinout, Pinouts
ISP1130 pinout,Pin out
This is one package pinout of ISP1130,If you need more pinouts please download ISP1130's pdf datasheet.

ISP1130 Application circuits
ISP1130 circuits
This is one application circuit of ISP1130,If you need more circuits,please download ISP1130's pdf datasheet.

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