News & Events
Intersil Announces New Full-Duplex RS-485/422 Transceivers with 15 kV ESD Protection
-- New 10 Mbps and 250 kbps transceivers offer high-performance upgrade from competing products
MILPITAS, CA, May 6, 2004 Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high performance analog solutions, today announced two new full-duplex RS-485/422 transceivers, the ISL8489E and the ISL8491E. These new transceivers are drop-in upgrades from competing parts of similar nomenclature and offer full 15 kV ESD protection and high performance for a wide range of applications including, but not limited to, factory automation, process control, security networks and building environmental control.
The ISL8489E and ISL8491E provide industry leading speed, reach, data integrity, reliability and flexibility that designers of copper pair bus networks need to meet todays high-performance demands, said Michael Althar, Vice President of Intersils Analog Solutions Product Group. Intersil continues to expand the interface products portfolio with the addition of these new high-performance full-duplex RS-485/422 transceivers.
These new RS-485/422 transceivers are full duplex, configured for four-wire RS-485 networks, which allows simultaneous transmit and receive capability, or for RS-422 networks where only one driver is allowed on a bus. The ICs are ESD protected to 15 kV on all transmit (Tx) and receive (Rx) bus pins and up to 7 kV on all logic pins, which greatly improves survivability from random static charges during manufacturing and use. Packaged in a 14-lead SOIC, the devices are rated for the industrial temperature range of 40 to +85 degrees. Exceeding the tolerance of many competing parts, the ICs operate with a +/-10 percent tolerance from a 5-V supply (4.5 to 5.5 V range).
Both the ISL8489E and ISL8491E are single-unit load devices that allow up to 32 nodes per bus and offer a choice of speed. The ISL8489E is a 250-kbps data rate device that has slew rate limited drivers intended for long-run applications. The slew rate limiting reduces EMI and minimizes reflections from improperly terminated transmission lines or non-terminated stubs in multi-drop and multi-point applications. The ISL8491E is a 10-Mbps device designed for high-speed short runs.
ISL8489E and ISL8491E Technical Summary
- Drop-in performance upgrades for MAX489E, MAX491E and SP491E
- Full duplex
- Single-unit load, 32 nodes per bus
- Balanced differential signaling
- 15 kV ESD protected on all Tx and Rx bus pins
- 7 kV protection on all other pins
- Single 5-V supply, +/-10 percent tolerance, 4.5 to 5.5 V range
- 7 V to +12 V common-mode input voltage range
- RS-485 and RS-422 standards compliant
- Rx inputs feature fail-safe-if-open design (logic high Rx output if Rx inputs are floating)
- Driver outputs short circuit protected, even for voltages exceeding the power supply
- On-chip thermal shutdown disables the Tx outputs, prevents damage if power dissipation becomes excessive
- ISL8489E 250 kbps
- ISL8491E 10 Mbps
The ISL8489E and ISL8491E are available now. The suggested resale price in 100 to 999-unit quantities is $1.10 for each IC. ICs are available on tape and reel.
Additional information on these and other high-performance interface solutions can be obtained online from Intersils Interface Web site at: http://www.intersil.com/interface/ About Intersil
Intersil Corporation, a NASDAQ 100 Index company, is a leader in the design and manufacture of high performance analog semiconductors. The company’s products address three of the industry’s fastest growing markets: flat panel displays, optical storage (CD and DVD recordable) and power management. Intersil products include power management devices for battery management, hot-swap and hot-plug controllers, linear regulators, supervisory ICs, 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 rad-hard 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 www.intersil.com.
This release may include "forward looking statements" that are subject to risks and uncertainties. For information identifying economic, political, climatic, currency, regulatory, technological, competitive and some other important factors that could cause actual results to differ materially from those anticipated in the forward looking statements, see Intersil’s Safe Harbor Forward Looking Statement disclaimer found at http://www.intersil.com/legal.asp, as well as Intersil’s SEC filings as updated from time to time, found at http://www.sec.gov. All other trademarks mentioned are the property of their respective owners.
