ISL3330IAZ-T

ISL3330IAZ-T is an ESD-protected, dual-protocol (RS-232/RS-485) transceiver. This device is a BiCMOS interface IC that is user-configured as either a single RS-422/RS-485 differential transceiver or as a dual (2 Tx, 2 Rx) RS-232 transceiver. In RS-232 mode, the on-board charge pump generates RS-232 compliant ±5V Tx output levels, from a supply as low as 3.15V. Four small 0.1µF capacitors are required for the charge pump. 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 RS-485 receiver features a "full failsafe" operation, so the Rx output remains in a high state if the inputs are open or shorted together. The application includes gaming applications (e.g., slot machines), single board computers, factory automation, security networks, industrial/process control networks, level translators (e.g., RS-232 to RS-422), and point of sale equipment.

• 1 number of ports, 20Mbps, 460kbps RS-485 data rate, 400kbps RS-232 data rate
• ACTIVE H Rx enable, low power shutdown
• True flow-through pinouts simplify board layouts
• Full failsafe (open/short) Rx in RS-485/RS-422 mode
• Driver differential VOUT (with load) is 2.3V typ (R = 50 ohm (RS-422), TA = +25°C)
• Driver common-mode VOUT is 3.0V max (R = 27ohm or 50 ohm, TA = +25°C)
• Driver output voltage swing is ±5.0V min (All TOUTS Loaded with 3kohm to Ground)
• No-load supply current is 3.7mA typ (485/232 active low = 0V, ON = VCC)
• Driver output skew is 2ns typ (RDIFF = 54ohm, CL = 100pF)
• 20 Ld SSOP package, temperature range from -40 to +85°C