Renesas ISL3179EFRZ

ТрансиверRS422, RS48540 Мбит/с

Overview

The ISL3179EFRZ and ISL3180E are high ESD protected, 3.3V powered, single transceivers that meet both the RS-485 and RS-422 standards for balanced communication. Each device has low bus currents (+220μA/-150μA), so they present a “1/5 unit load” to the RS-485 bus. This allows up to 160 transceivers on the network without violating the RS-485 specification’s 32 unit load maximum, and without using repeaters.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.The ISL3180E is configured for full duplex applications. The ISL3179EFRZ half duplex version multiplexes the Rx inputs and Tx outputs to allow a transceiver with an output disable function in 8 Ld packages.Hot plug circuitry ensures that the Tx and Rx outputs remain in a high impedance state while the power supply stabilizes.

Features

Applications

• Wireless modems
• Remote controls
• Wireless network systems
• Satellite communications networks
• Ethernet circuitry
• Wired telephone
• Cordless telephone
• Desktop PC
• Notebook
• Pocket PC