ISL8491E Datasheet | Renesas

feature higher slew rates. The devices present a “single unit load” to the RS-485 bus, which allows a total of 32 transmitters and receivers on the network. For “1/8 unit load” versions (256 devices on the bus), please refer to the ISL4489E, ISL4491E data sheet. Receiver (Rx) inputs feature a “fail-safe if open” design, which ensures a logic high Rx output if Rx inputs are floating. Driver (Tx) outputs are short circuit protected, even for voltages exceeding the power supply voltage. Additionally, on-chip thermal shutdown circuitry disables the Tx outputs to prevent damage if power dissipation bees excessive. Features - RS-485 I/O Pin ESD Protection  15k V HBM - Class 3 ESD Level on all Other Pins - . >7k V HBM - High Data Rates (ISL8490E, ISL8491E) . . up to 10Mbps - Slew Rate Limited for Error Free Data Transmission (ISL8488E, ISL8489E) - Single Unit Load Allows up to 32 Devices on the Bus (See ISL4489E, ISL4491E for 256 Devices on Bus) - Low Quiescent Current: - 120µA (ISL8488E) - 140µA (ISL8489E) - 370µA (ISL8490E, ISL8491E) - -7V to +12V mon Mode Input Voltage Range - Three-State Rx and Tx Outputs (Except ISL8488E, ISL8490E) - Full Duplex Pinout - Operates from a Single +5V Supply (10% Tolerance) - Current Limiting and Thermal Shutdown for Driver Overload Protection - Pb-Free Plus Anneal Available (Ro HS pliant) Applications - Factory Automation - Security Networks - Building Environmental Control Systems - Industrial/Process Control Networks - Level Translators (e.g., RS-232 to RS-422) - RS-232 “Extension Cords” PART HALF/FULL NUMBER DUPLEX ISL8488E Full ISL8489E Full ISL8490E Full Full HIGH ESD? Yes Yes Yes Yes TABLE 1. SUMMARY OF...