ISL3333IRZ-T7A

ISL3333IRZ-T7A is a 3.3V, ±15KV ESD protected, two port, dual protocol (RS-232/RS-485) transceiver. This two port interface IC where each port can be independently configured as a single RS-485/422 transceiver, or as a dual (2 Tx, 2 Rx) RS-232 transceiver. If either port is in RS-232 mode, the onboard charge pump generates RS-232 compliant ±5V Tx output levels from a single VCC supply as low as 3.15V. The transceiver is RS-232 compliant, with the Rx inputs handling up to ±25V. In RS-485 mode, the transceivers support both the RS-485 and RS-422 differential communication standards. The receiver features “full fail-safe” operation, so the Rx outputs remain in a high state if the inputs are open or shorted together. Applications include gaming applications (such as slot machines), single board computers, factory automation, security networks, industrial/process control networks, level translators (such as RS-232 to RS-422), point of sale equipment, dual channel RS-485 interfaces.

• Operates from a single 3.3V supply
• 2 independent ports, each user selectable for RS-232 (2 transceivers)orRS-485/RS-422 (1 transceiver)
• True flow-through pinouts simplify board layouts
• Loopback mode facilitates board self test functions
• Small charge pump caps is 4 x 0.1µF
• Low current shutdown mode is 35µA
• 2.3V typical driver differential VOUT (with load, R = 50 ohm)
• 3.0V maximum driver common-mode VOUT (R = 27 or 50 ohm)
• 2.2V minimum input high voltage (VL = VCC if QFN, TA =+25°C)
• 40 lead QFN package, temperature range from -40 to 85°C