SOURCE: Intersil

September 28, 2007 13:12 ET

World's Most Power-Efficient RS-485/RS-422 Single Receiver Delivers Superior IEC61000 ESD Protection in Space-Saving Packages

ISL328xE Series Provides Rugged 16.5kV IEC61000 ESD Protection on Inputs While Drawing 30 Times Less Power Than Competitive Devices

MILPITAS, CA--(Marketwire - September 28, 2007) - Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high-performance analog semiconductors, today announced the ISL328xE series of single RS-485/RS-422 receivers (Rx) designed with excellent IEC61000-level ESD protection (+/-16.5kV Air Gap and +/-9kV Contact) and an ultra-low supply current requirement in a small SOT-23 and TDFN packages.

The ISL328xE are full featured receivers including 1/8th unit load input resistance (allowing up to 256 devices on the bus), full fail-safe (open, short, and terminated but undriven); along with the enhanced ESD protection on the Rx input pins. These receivers all operate from a wide supply range of 3.0V to 5.5V and at data rates up to 20Mbps.

This family of receivers has low quiescent supply current (Icc = 500uA max) that is 1/30th the value of the nearest competitor, making a significant improvement in power critical applications. Additionally, the devices with an enable pin (ISL3281E, ISL3282E, and ISL3283E) can be put into a low power shutdown mode (Icc = 20uA max) to further reduce power consumption whenever the receiver is disabled. The ISL3281E has an active high enable while the ISL3282E and ISL3283E feature an active low enable for design flexibility.

The ISL3282E and the ISL3284E have on board level translators on the enable input and Rx output pins that simplify the design of mixed voltage systems. The logic supply pin (VL) can be connected to a lower voltage processor supply to level shift the input and output voltages to values compatible with the processor supply. This eliminates the need for external level translators.

The ISL3280E, ISL3281E, ISL3283E, ISL3284E come in SOT-23 packages that occupy a 3mm x 3mm foot print. The ISL3282E comes in a tiny 2mm x 3mm TDFN package for additional board space savings and enhanced thermal performance. All versions are offered in the industrial (-40C to +85C) and extended industrial (-40C to +125C) temperature ranges for enhanced overall reliability.

Pricing and Availability

The ISL328xE family is available now in a variety of configurations: ISL3280E in 5-lead SOT-23 packages; ISL3281E in 6-lead SOT-23 packages; ISL3282E in 8-lead TDFN packages; ISL3283E and ISL3284E, both in 6-lead SOT-23 packages.

One-thousand unit quantities are $0.68 for industrial temperature grade and $0.95 for extended industrial temperature grade.

Note to editors: To view a high-resolution downloadable photo of ISL328xE, visit Intersil's photo room at:

About Intersil's Interface Portfolio

Intersil offers a wide range of RS-232, RS-485/RS-422, and Multi-Protocol transceivers. The RS-232 family of devices operates off of 3.3V or 5V supplies, has many combinations of transmitter and receiver configurations and is protected to IEC61000 ESD specification. The RS-485 family of devices comes in 3.3V or 5V supply operation, support full/half duplex modes with many speed grades to chose from and the devices are protected to 15kV HBM ESD. To learn more, visit Intersil's Interface Website at

About Intersil

Intersil Corporation is a leader in the design and manufacture of high-performance analog semiconductors. The Company's products address some of the industry's fastest growing markets, such as, flat panel displays, cell phones, other handheld systems, and notebooks. Intersil's product families address power management functions and analog signal processing functions. Intersil products include ICs for battery management, hot-swap and hot-plug controllers, linear regulators, power sequencers, supervisory ICs, bridge drivers, PWM controllers, switching DC/DC regulators and power MOSFET drivers; optical storage laser diode drivers; DSL line drivers; video and high-performance operational amplifiers; data converters; interface ICs; analog switches and multiplexers; crosspoint switches; voice-over-IP devices; and ICs for military, space and radiation-hardened applications. For more information about Intersil or to find out how to become a member of our winning team, visit the Company's web site and career page at

Contact Information

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    Rob Purdie
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    Intersil Corporation
    (321) 724-7688
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