±15kV ESD Protectio，3.3V，Low Power, High Speed RS-485/RS-422 Transceiver
Intersil ISL8307XE are BiCMOS 3.3V powered, single transceivers that meet both the RS-485 and RS-422 standards for balanced communication. These devices have very low bus currents (+125mA/-100mA), so they present a true “1/8 unit load” to the RS-485 bus. This allows up to 256 transceivers on the network without violating the RS-485 specification’s 32 unit load maximum, and without using repeaters. For example, in a remote utility meter reading system, individual meter readings are routed to a concentrator via an RS-485 network, so the high allowed node count minimizes the number of repeaters required.
Receiver (Rx) inputs feature a “Full Fail-Safe” design, which ensures a logic high Rx output if Rx inputs are floating, shorted, or terminated but undriven.
Hot Plug circuitry ensures that the Tx and Rx outputs remain in a high impedance state while the power supply stabilizes.
RS-485 I/O Pin ESD Protection: ±15kV HBM
Full Fail-safe (Open, Short, Terminated/Floating) Receivers
Class 3 ESD Level on all Other Pins: >7kV HBM
True 1/8 Unit Load Allows up to 256 Devices on the Bus
Single 3.3V Supply
High Data Rates: up to 20Mbps
Low Quiescent Supply Current: 800μA (Max)
Ultra Low Shutdown Supply Current: 10nA
-7V to +12V Common Mode Input/Output Voltage Range
Half and Full Duplex Pinouts
Three State Rx and Tx Outputs Available
Tiny MSOP package offering saves 50% board space
Hot Plug - Tx and Rx Outputs Remain Three-state During Power-up (Only Versions with Output Enable Pins)
Current Limiting and Thermal Shutdown for driver Overload Protection
Pb-Free (RoHS Compliant)
Automated Utility Meter Reading Systems
High Node Count Systems
Field Bus Networks
Security Camera Networks
Building Environmental Control/Lighting Systems
Industrial/Process Control Networks
Ordering Info.