RENESAS ISL32493EIBZ-T7A

ISL32490E, ISL32492E, ISL32493E, ISL32495E, ISL32496E, and ISL32498E are fault protected, 5V powered, differential transceivers that exceed the RS - 485 and RS - 422 standards for balanced communication. The RS - 485 transceiver pins (driver outputs and receiver inputs) are fault protected up to ±60V and are protected against ±16.5kV ESD strikes without latch - up. Additionally, the extended Common - Mode Range (CMR) allows these transceivers to operate in environments with common - mode voltages up to ±25V (more than twice the range required for RS - 485), making this fault protected RS - 485 family one of the most robust on the market. The transmitters (Tx) deliver an exceptional 2.5V (typical) differential output voltage into the RS - 485 specified 54Ω load. This yields better noise immunity than standard RS - 485 ICs, or allows up to six 120Ω terminations in star network topologies. The receiver (Rx) inputs feature a full fail - safe design that ensures a logic high Rx output if the Rx inputs are floating, shorted, or on a terminated but undriven (idle) bus. The Rx outputs have high drive levels; typically, 15mA at VOL = 1V (for opto - coupled, isolated applications). Half duplex (Rx inputs and Tx outputs multiplexed together) and full duplex pinouts are available.

• Fault protected RS - 485 bus pins up to ±60V
• Extended CMR: ±25V (more than twice the range required for RS - 485)
• ±16.5kV HBM ESD protection on RS - 485 bus pins
• 1/4 unit load for up to 128 devices on the bus
• High transient overvoltage tolerance: ±80V
• Full fail - safe (open, short, terminated) RS - 485 receivers
• High Rx IOL for opto - couplers in isolated designs
• Hot plug circuitry; Tx and Rx outputs remain three - state during power - up/power - down
• Choice of RS - 485 data rates: 250kbps to 15Mbps
• Low quiescent supply current: 2.3mA
• Ultra low shutdown supply current: 10μA

• Utility meters/automated meter reading systems
• High node count RS - 485 systems
• PROFIBUS and RS - 485 based field bus networks, and factory automation
• Security camera networks
• Building lighting and environmental control systems
• Industrial/process control networks