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MFG:PHI  Package Cooled:YQFP  D/C:07+  

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Part Number: ISP1581

 

MFG: PHI

Package Cooled: YQFP

D/C: 07+

Description: The ISP1581 is a cost-optimized and feature-optimized Universal Serial Bus (USB) interface device, whi...


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ISP1581 General Description


The ISP1581 is a cost-optimized and feature-optimized Universal Serial Bus (USB) interface device, which fully complies with the Universal Serial Bus Specification Rev. 2.0. It provides high-speed USB communication capacity to systems based on a microcontroller or microprocessor. The ISP1581 communicates with the system's microcontroller/processor through a high-speed general-purpose parallel interface.

The ISP1581 supports automatic detection of USB 2.0 system operation. The USB 1.1 fall-back mode allows the device to remain operational under full-speed conditions. It is designed as a generic USB interface device so that it can fit into all existing device classes, such as: Imaging Class, Mass Storage Devices, Communication Devices, Printing Devices and Human Interface Devices.

The internal generic DMA block allows easy integration into data streaming applications. In addition, the various configurations of the DMA block are tailored for mass storage applications.

The internal generic DMA block allows easy integration into data streaming applications. In addition, the various configurations of the DMA block are tailored for mass storage applications.

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

The ISP1581 is ideally suited for many types of peripherals, such as: printers; scanners; magneto-optical (MO), compact disc (CD), digital video disc (DVD) and Zip®/Jaz® drives; digital still cameras; USB-to-Ethernet links; cable and DSL modems. The low power consumption during 'suspend' mode allows easy design of equipment that is compliant to the ACPI™, OnNow™ and USB power management requirements.

The ISP1581 also incorporates features such as SoftConnect™, a reduced frequency crystal oscillator and integrated termination resistors. These features allow significant cost savings in system design and easy implementation of advanced USB functionality into PC peripherals

ISP1581 Maximum Ratings

Symbol Parameter Conditions Min Max Unit
VCC supply voltage   -0.5 +6.0 V
VI input voltage   -0.5 VCC+0.5 V
Ilatchup latch-up current VI < 0 or VI > VCC - 200 mA
Vesd electrostatic discharge voltage ILI < 15 A   - <tbd> V
Tstg storage temperature   -60 +150
Ptot total power dissipation   - <tbd> mW

ISP1581 Features

Complies fully with Universal Serial Bus Specification Rev. 2.0
Complies with most Device Class specifications
High performance USB interface device with integrated Serial Interface Engine (SIE), FIFO memory, data transceiver and 3.3 V voltage regulators
Supports automatic USB 2.0 mode detection and USB 1.1 fall-back mode
High speed DMA interface
Fully autonomous and multi-configuration DMA operation
Up to 14 programmable USB endpoints with 2 fixed control IN/OUT endpoints
Integrated physical 8 kbyte of multi-configuration FIFO memory
Endpoints with double buffering to increase throughput and ease real-time data transfer
Bus independent interface with most microcontroller/microprocessors (16 Mbytes/s or 16 Mwords/s)
Bus-powered capability with low power consumption and low 'suspend' current
12 MHz crystal oscillator with integrated PLL for low EMI
Software controlled connection to the USB bus (SoftConnect™)
Complies with the ACPI™, OnNow™ and USB power management requirements
Internal power-on and low-voltage reset circuit, also supporting a software reset
Operation over the extended USB bus voltage range (4.0 to 5.5 V) with 5 V tolerant I/O pads
Operating temperature range -40 to +85 °C
12 kV in-circuit ESD protection on human accessible pins such as D+ and D-
Full-scan design with high fault coverage (>99%)
Available in LQFP64 package.

ISP1581 Typical Application

·  Personal digital assistant (PDA)
·  Mass storage device, e.g., Zip®, Jaz®, MO, CD, DVD drive
·  Digital camera
·  Communication device, e.g. router, modem
·  Printer
·  Scanner.

ISP1581 Connection Diagram

ISP1581  Connection Diagram

ISP1581 datasheet

ISP1581
PDF/DataSheet Download

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