DATASHEET 16.5kV ESD Protected, +125C, 3.0V to 5.5V, SOT-23/TDFN Packaged, 20Mbps, Full Fail-safe, Low Power, RS-485/RS-422 Receivers ISL3280E, ISL3281E,ISL3282E, Features IEC61000 ESD protection on RS-485 inputs . 16.5kV ISL3283E, ISL3284E, ISL3285E - Class 3 ESD level on all other pins >5kV HBM The Intersil ISL3280E, ISL3281E, ISL3282E, ISL3283E, ISL3284E, ISL3285E are 16.5kV IEC61000 ESD Protected, Pb-free (RoHS compliant) 3.0V to 5.5V powered, single receivers that meet both the Wide supply range . 3.0V to 5.5V RS-485 and RS-422 standards for balanced communication. Specified for +125C operation These receivers have very low bus currents (+125A/-100A), so they present a true 1/8 unit load to the RS-485 bus. This Logic supply pin (V ) eases operation in mixed supply L allows up to 256 receivers on the network without violating the systems (ISL3282E, ISL3284E, ISL3285E only) RS-485 specifications 32 unit load maximum and without using Full fail-safe (open, short, terminated/undriven) repeaters. True 1/8 unit load allows up to 256 devices on the bus Receiver inputs feature a Full Fail-Safe design, which ensures High data rates up to 20Mbps a logic high Rx output if Rx inputs are floating, shorted, or terminated but undriven. Low quiescent supply current . 500A (max) - Very low shutdown supply current 20A (max) The ISL3280E and ISL3284E feature an always enabled Rx the ISL3281E and ISL3285E feature an active high Rx enable -7V to +12V common mode input voltage range pin and the ISL3282E and ISL3283E include an active low Tri-statable Rx available (active low or high EN input) enable pin. All versions are offered in Industrial and Extended Industrial (-40C to +125C) temperature ranges. 5V tolerant logic inputs when VCC 5V A 26% smaller footprint is available with the ISL3282E and Applications ISL3285E TDFN package. These devices, plus the ISL3284E, also feature a logic supply pin (V ) that sets the V level of L OH Clock distribution the RO output (and the switching points of the RE / RE input) High node count systems to be compatible with another supply voltage in mixed voltage Space constrained systems systems. Security camera networks For companion single RS-485 transmitters in micro packages, please see the ISL3293E datasheet. Building environmental control/lighting systems Industrial/process control networks TABLE 1. SUMMARY OF FEATURES PART DATA RATE DEVICES RX QUIESCENT I LOW POWER LEAD CC NUMBER FUNCTION (Mbps) ON BUS ENABLE V PIN (A) SHUTDOWN COUNT L ISL3280E 1 Rx 20 256 NO NO 350 NO 5-SOT ISL3281E 1 Rx 20 256 ACTIVE HIGH NO 350 YES 6-SOT ISL3282E 1 Rx 20 256 ACTIVE LOW YES 350 YES 8-TDFN ISL3283E 1 Rx 20 256 ACTIVE LOW NO 350 YES 6-SOT ISL3284E 1 Rx 20 256 NO YES 350 NO 6-SOT ISL3285E 1 Rx 20 256 ACTIVE HIGH YES 350 YES 8-TDFN December 4, 2014 CAUTION: These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1 1-888-INTERSIL or 1-888-468-3774 Copyright Intersil Americas LLC 2007, 2014. All Rights Reserved FN6543.3 Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners.ISL3280E, ISL3281E,ISL3282E, ISL3283E, ISL3284E, ISL3285E Pin Configurations ISL3280E ISL3281E (5 LD SOT-23) (6 LD SOT-23) TOP VIEW TOP VIEW V 1 5 A V 1 6 A CC CC GND 2 R GND 2 R 5 RE RO 3 4 B RO 3 4 B ISL3282E ISL3283E (8 LD TDFN) (6 LD SOT-23) TOP VIEW TOP VIEW V 1 6 A CC RO B 1 8 GND 2 R 5 RE GND 2 RE 7 R RO 3 4 B NC V 3 6 L V 4 5 A CC ISL3284E ISL3285E (6 LD SOT-23) (8 LD TDFN) TOP VIEW TOP VIEW V 1 6 A CC RO B 1 8 GND 2 R 5 V L GND 2 7 RE R RO 3 4 B NC V 3 6 L V 4 5 A CC Submit Document Feedback FN6543.3 2 December 4, 2014