ISL3333IRZ

ISL3333IRZ is a 3.3V, ±15KV ESD protected, two port, dual protocol (RS-232/RS-485) transceiver. It is a 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. It also features a logic supply pin (VL) that sets the VOH level of logic outputs, and the switching points of logic inputs, to be compatible with another supply voltage in mixed voltage systems. Typical applications are 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.

• True flow-through pinouts simplify board layouts
• Full failsafe (open/short) Rx in RS-485/422 mode
• Loopback mode facilitates board self test functions
• Logic supply pin (VL) eases operation in mixed supply systems
• RS-232 Tx and Rx enable pins
• Small charge pump caps is 4 x 0.1µF
• User selectable RS-485 data rate is 20Mbps (fast speed)
• 400Kbps RS-232 data rate, 20M, 460k, 115Kbps RS-485 data rate
• 40 lead QFN package
• Temperature rating range from -40°C to +85°C