ST-Ericsson

ISP1181B

General Description

The ISP1181B is a Universal Serial Bus (USB) peripheral controller that complies with Universal Serial Bus Specification Rev. 2.0, supporting data transfer at full-speed (12 Mbit/s). It provides full-speed USB communication capacity to microcontroller or microprocessor-based systems. The ISP1181B communicates with the system's microcontroller or microprocessor through a high-speed general-purpose parallel interface.

The ISP1181B supports fully autonomous, multi-configurable Direct Memory Access (DMA) operation.

The modular approach to implementing a USB peripheral controller allows the designer to select the optimum system microcontroller from the wide variety available. The ability to reuse existing architecture and firmware investments shortens development time, eliminates risks and reduces costs. The result is fast and efficient development of the most cost-effective USB peripheral solution.

The ISP1181B is ideally suited for application in many personal computer peripherals such as printers, communication devices, scanners, external mass storage (Zip® drive) devices and digital still cameras. It offers an immediate cost reduction for applications that currently use SCSI implementations

Key Features

 

  • Complies with Universal Serial Bus Specification Rev. 2.0 and most Device Class specifications
  • Supports data transfer at full-speed (12 Mbit/s)
  • High performance USB peripheral controller with integrated Serial Interface Engine (SIE), FIFO memory, transceiver and 3.3 V voltage regulator
  • High speed (11.1 Mbyte/s or 90 ns read/write cycle) parallel interface
  • Fully autonomous and multi-configuration DMA operation
  • Up to 14 programmable USB endpoints with 2 fixed control IN/OUT endpoints
  • Integrated physical 2462 bytes of multi-configuration FIFO memory
  • Endpoints with double buffering to increase throughput and ease real-time data transfer
  • Seamless interface with most microcontrollers/microprocessors
  • Bus-powered capability with low power consumption and low 'suspend' current
  • 6 MHz crystal oscillator input with integrated PLL for low EMI
  • Controllable LazyClock (100 kHz ± 50 %) output during 'suspend'
  • Software-controlled connection to the USB bus (SoftConnect™)
  • Good USB connection indicator that blinks with traffic (GoodLink™)
  • Clock output with programmable frequency (up to 48 MHz)
  • Complies with the ACPI™, OnNow™ and USB power management requirements
  • Internal power-on and low-voltage reset circuit, with possibility of a software reset
  • Operation over the extended USB bus voltage range (4.0 V to 5.5 V) with 5 V tolerant I/O pads
  • Operating temperature range –40 °C to +85 °C
  • Full-scan design with high fault coverage
  • Available in TSSOP48 and HVQFN48 packages.

     

    • Connection Diagram

    Applications

    CONTACT

    For USB technical support and errata sheets (if any), contact wired.support@stericsson.com

    Supporting Documents

    Type:Description:File Size:Download:
    Selection GuideUSB Controllers Selection Guide225KB download
    FlyerUSB peripheral controllers PDIUSBD12, ISP1181B, ISP1183283KB download
    FlyerComplete USB software from the leader in USB for mobile364KB download
    BrochureUSB evaluation kits and reference tools2606KB download
    DatasheetISP1181B Full-speed USB peripheral controller1859KB download
    User ManualISP118x USB-to-RS-232 reference kit380KB download
    User ManualISP1181x microcontroller eval kit205KB download
    Application NoteInterrupt control in ISP1181x174KB download
    Application NoteISP1181A/ISP1181B/ISP1183 Frequently Asked Questions197KB download
    Application NoteSimultaneous DMA and PIO access in ISP1161A1, ISP1181x and ISP136289KB download
    Application NoteComparing energy efficiency of USB at full and high speed rates733KB download
    User ManualFirmware programming guide for ISP1181301KB download
    User ManualISP1181 PC eval kit154KB download
    Application NoteInterfacing ISP1181 to Hitachi SH7709 RISC processor220KB download
    © 2010 ST-Ericsson. All rights reserved TERMS OF USEPRIVACY STATEMENT