DATASHEET ISL8483, ISL8485, ISL8488, ISL8489, ISL8490, ISL8491 FN6046 Rev 9.00 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers February 16, 2016 The Intersil RS-485/RS-422 devices are BiCMOS 5V Features powered, single transceivers that meet both the RS-485 and Specified for 10% Tolerance Supplies RS-422 standards for balanced communication. Unlike competitive devices, this Intersil family is specified for 10% Class 3 ESD Protection (HBM) on all Pins >7kV tolerance supplies (4.5V to 5.5V). High Data Rates up to 5Mbps The ISL8483, ISL8488, and ISL8489 utilize slew rate limited Slew Rate Limited Versions for Error Free Data drivers which reduce EMI, and minimize reflections from Transmission at 250kbps (ISL8483, ISL8488, ISL8489) improperly terminated transmission lines, or unterminated Single Unit Load Allows up to 32 Devices on the Bus stubs in multidrop and multipoint applications. 1nA Low Current Shutdown Mode (ISL8483) Data rates up to 5Mbps are achievable by using the ISL8485, ISL8490, or ISL8491, which feature higher slew Low Quiescent Current: rates. -160A (ISL8483, ISL8488, ISL8489) -500A (ISL8485, ISL8490, ISL8491) All devices present a single unit load to the RS-485 bus, which allows up to 32 transceivers on the network. -7V to +12V Common Mode Input Voltage Range Receiver (Rx) inputs feature a fail-safe if open design, Three State Rx and Tx Outputs (Except ISL8488, which ensures a logic high Rx output if Rx inputs are ISL8490) floating. 30ns Propagation Delays, 5ns Skew (ISL8485, ISL8490, ISL8491) Driver (Tx) outputs are short circuit protected, even for voltages exceeding the power supply voltage. Additionally, Full Duplex and Half Duplex Pinouts on-chip thermal shutdown circuitry disables the Tx outputs to Operate from a Single +5V Supply (10% Tolerance) prevent damage if power dissipation becomes excessive. Current Limiting and Thermal Shutdown for driver The ISL8488 - 91 are configured for full duplex (separate Rx Overload Protection input and Tx output pins) applications. The ISL8488 and Pb-Free Plus Anneal Available (RoHS Compliant) ISL8490 are offered in space saving 8 lead packages for applications not requiring Rx and Tx output disable functions Applications (e.g., point-to-point). Half duplex configurations (ISL8483, ISL8485) multiplex the Rx inputs and Tx outputs to allow Factory Automation transceivers with Rx and Tx disable functions in 8 lead Security Networks packages. Building Environmental Control Systems Industrial/Process Control Networks Level Translators (e.g., RS-232 to RS-422) RS-232 Extension Cords FN6046 Rev 9.00 Page 1 of 18 February 16, 2016ISL8483, ISL8485, ISL8488, ISL8489, ISL8490, ISL8491 TABLE 1. SUMMARY OF FEATURES DATA RECEIVER/ PART HALF/FULL NO. OF DEVICES RATE SLEW-RATE DRIVER QUIESCENT LOW POWER PIN NUMBER DUPLEX ALLOWED ON BUS (Mbps) LIMITED ENABLE I (A) SHUTDOWN COUNT CC ISL8483 Half 32 0.25 Yes Yes 160 Yes 8 (No longer available or supported) ISL8485 Half 32 5 No Yes 500 No 8 ISL8488 (No Full 32 0.25 Yes No 160 No 8 longer available or supported) ISL8489 (No Full 32 0.25 Yes Yes 160 No 14 longer available or supported ISL8490 Full 32 5 No No 500 No 8 ISL8491 Full 32 5 No Yes 500 No 14 Ordering Information PART NUMBER PART MARKING TEMP. RANGE (C) PACKAGE PKG. DWG. ISL8483IPZ (Note) (No longer ISL8483IPZ -40 to 85 8 Ld PDIP* (Pb-free) E8.3 available, recommended replacement ISL3152EIPZ) ISL8485CBZ (Note) 8485CBZ 0 to 70 8 Ld SOIC(Pb-free) M8.15 ISL8485CBZ-T (Note) 8485CBZ 8 Ld SOIC Tape and Reel (Pb-free) M8.15 ISL8485CPZ (Note) ISL8485CPZ 0 to 70 8 Ld PDIP* (Pb-free) E8.3 ISL8485IBZ (Note) 8485IBZ -40 to 85 8 Ld SOIC (Pb-free) M8.15 ISL8485IB-T 8485IB 8 Ld SOIC Tape and Reel M8.15 ISL8485IBZ-T (Note) 8485IBZ 8 Ld SOIC Tape and Reel (Pb-free) M8.15 ISL8485IP ISL8485IP -40 to 85 8 Ld PDIP E8.3 ISL8485IPZ (Note) ISL8485IPZ -40 to 85 8 Ld PDIP* (Pb-free) E8.3 ISL8488IBZ (Note) (No longer 8488IBZ -40 to 85 8 Ld SOIC (Pb-free) M8.15 available, recommended replacement ISL8488EIBZ) ISL8488IPZ (Note) (No longer ISL8488IPZ -40 to 85 8 Ld PDIP* (Pb-free) E8.3 available, recommended replacement ISL3152EIPZ) ISL8489IP ISL8489IP -40 to 85 14 Ld PDIP E14.3 (No longer available, no recommended replacement ) ISL8490IBZ (Note) 8490IBZ -40 to 85 8 Ld SOIC (Pb-free) M8.15 ISL8490IBZ-T (Note) 8490IBZ 8 Ld SOIC Tape and Reel (Pb-free) M8.15 ISL8491IBZ (Note) 8491IBZ -40 to 85 14 Ld SOIC (Pb-free) M14.15 ISL8491IBZ-T (Note) 8491IBZ 14 Ld SOIC Tape and Reel (Pb-free) M14.15 *Pb-free PDIPs can be used for through hole wave solder processing only. They are not intended for use in Reflow solder processing applications. NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. FN6046 Rev 9.00 Page 2 of 18 February 16, 2016