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.

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 pct) 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 Cel to+85 Cel
• Full-scan design with high fault coverage
• Available in TSSOP48 and HVQFN48 packages.

Products/packages

Products in the above table are all in production. Some variants are discontinued; click here for information on these variants.

Pricing/ordering/availability

Applications

• Personal Digital Assistant (PDA)
• Digital camera
• Communication device, for example:
• Router
• Modem
• Mass storage device, for example:
• Zip drive
• Printer
• Scanner.

Related applications
Motherboard components

Block diagrams/pinning

Technical documents

Application Notes

AN10010_5; ISP1181A/ISP1181B/ISP1183 Frequently Asked Questions (27-Nov-07)

AN10013-01; Interrupt Control in ISP1181x (01-Aug-02)

AN10030_1; Simultaneous DMA and PIO Access in the ISP1161x, ISP1181x and ISP136x Device Controller (01-Mar-03)

AN10035_1; Comparing energy efficiency of USB at full-speed and high-speed rates (01-Oct-03)

AN10339_1; UART serial interface through USB evaluation board (18-Feb-05)

INTERFACING_1181_TO_HITACHI_SH7709; Interfacing ISP1181 to Hitachi SH7709 RISC Processor (01-Dec-00)

Support Documents

1181_FW_PROG_GUIDE; Firmware Programming Guide for ISP1181 (2001-01-04)

1181_PC_EVAL_KIT_MANUAL-02; ISP1181 PC Eval Kit User's Manual (2001-09-01)

ISP1181B_Errata_040603; ISP1181B Erratasheet (2004-06-03)

75010422; ISP1181B USB Interface Device with Parallel Bus (2002-10-01)

UM10064_1; ISP1181x Microcontroller Eval Kit (2007-02-16)

UM10002-01; ISP118x USB-to-RS-232 Reference Kit (2000-02-02)

75015937; NXP USB products (01-Feb-07)

75014395; Your connection to I 2 C,UART,CAN,and USB Connecting with Philips Wired Connectivity (2005-04-01)

Parametrics/similar products

Similar products

ISP1181B links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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