XR32330 3-Driver/3-Receiver Intelligent RS-232 Transceiver with 1.65V-5.5V Interface FEATURES General Description The XR32330 product is a 3-driver/ 3-receiver RS-232 transceiver featur- Meets true EIA/TIA-232-F Standards from a +3.0V to 5.5V power supply ing a variable low voltage logic interface, down to 1.65V. This product is 1.65V to 5.5V Logic Interface V pin intended for portable or hand-held applications such as bar code scan- L ners as well as point-of-sales terminals, security and industrial control AUTO ON-LINE circuitry automatically wakes up from a 1mA shutdown applications. The XR32330EBER device features slew-rate limited out- puts for reduced crosstalk and EMI. Regulated Charge Pump yields stable RS-232 Outputs regardless of V variations CC The XR32330 uses an internal high-efficiency charge-pump power supply Enhanced ESD Specifications that requires only four 0.1F capacitors in 3.3V operation. This charge 15kV Human Body Model pump combined with Exar s driver architecture allow the XR32330 to 15kV IEC61000-4-2 Air Discharge deliver compliant RS-232 performance from a single power supply rang- 8kV IEC61000-4-2 Contact Discharge ing from +3.0V to +5.5V. 250Kbps min transmission rate (speed grade B) The AUTO ON-LINE feature allows the device to automaticallywake- -40C to 85C ambient operating temperature u during a shutdown state when an RS-232 cable is connected and a Lead-free (RoHS 6) QFN package connected peripheral is turned on. Otherwise, the device automatically shuts itself down drawing less than 1A. APPLICATIONS Portable and Hand-Held Equipment Industrial and Process Control Equipment Point-Of-Sales Equipment Building Security and Automation Ordering Information Last Page Typical Operating Circuit and Package Pinout VL VCC 0.1 F 0.1 F 18 19 V V L CC 21 C1+ 20 V+ 0.1 F 16 C1- 0.1 F 24 23 22 21 20 19 Charge 22 C2+ Pump 24 0.1 F V- 23 C2- 0.1 F 1 18 R1IN VL 9 T1IN T1OUT 4 R2IN 2 17 GND 8 T2IN T2OUT 5 TTL/CMOS RS-232 Inputs Outputs 3 16 R3IN C1- XR32330 7 T3IN T3OUT 6 V CC 24 pin QFN 4 15 T1OUT ONLINE 14 Shutdown (4x4mm) Auto On-line / 15 OnLine Control To -P Supervisor 13 Status T2OUT 5 14 SHUTDOWN Circuit 12 R1OUT R1IN 1 6 13 T3OUT STATUS 5K TTL/CMOS 11 2 RS-232 R2OUT R2IN Inputs Outputs 789 10 11 12 5K 10 R3OUT R3IN 3 5K GND 17 January 31, 2020 1 / 13 maxlinear.comXR32330 Rev 1C T3IN V- T2IN C2- T1IN C2+ R3OUT C1+ R2OUT V+ R1OUT VCCXR32330 Absolute Maximum Ratings Operating Conditions Stresses beyond those listed under Absolute Maximum Operating Temperature Range...................-40C to +85C Ratings may cause permanent damage to the device. V Supply Range......................................... 3.0V to 5.5V CC Exposure to any Maximum Rating condition for extended periods may affect device reliability and lifetime. V I/O Supply Range (V V ).................. 1.65V to 5.5V L L CC Supply Voltage (V )..................................-0.3V to +6.0V CC Logic Interface Voltage (V ).................................V V L L CC Thermal Information (24 Ld QFN (4x4mm)) V+................................................................-0.3V to +7.0V .................................................................39.2 (C/W) JA V-.................................................................+0.3V to -7.0V .................................................................15.3 (C/W) JC V+ + V- ....................................................................13V I (DC V or GND current)...............................100mA CC CC Junction Temperature...............................................125C Input Voltages TxIN, ONLINE, SHUTDOWN,....................-0.3V to +6.0V RxIN..........................................................................15V Output Voltage TxOUT....................................................................13.2V RxOUT, STATUS.........................................-0.3V to +6.0V Short-Circuit Duration TxOUT..............................................................Continuous Storage Temperature...............................-65C to +150C ESD Rating RS-232 Bus pins HBM - Human Body Model......................................15kV IEC614000-4-2 Air Discharge..................................15kV IEC614000-4-2 Contact Discharge............................8kV January 31, 2020 2 / 13 maxlinear.com/XR32330 Rev 1C