XR32220EUER-L

XR32220 2-Driver / 2-Receiver Intelligent RS-232 Transceiver with 1.65V to 5.5V Interface Description The XR32220 product is a 2 driver / 2 receiver RS-232 transceiver featuring a variable low voltage logic interface, down to 1.65V. This product is intended for portable or hand-held applications such as notebook and palmtop computers. The XR32220EBER device feature slew-rate limited outputs for reduced crosstalk and EMI. The XR32220EUER device is optimized for high speed with data rates up to 1Mbps, easily meeting the demands of high speed RS-232 applications. The XR32220 uses an internal high-efficiency charge-pump power supply that requires only four 0.1μF capacitors in 3.3V operation. This charge pump combined with MaxLinear’s driver architecture allow the XR32220 to deliver compliant RS-232 performance from a single power supply ranging from +3.0V to +5.5V. The AUTO ON-LINE® feature allows the device to automatically “wake-up” during a shutdown state when an RS-232 cable is connected and a connected peripheral is turned on. Otherwise, the device automatically shuts itself down drawing less than 1μA. Typical Application VCC 9 24 T1IN T1OUT 5 T2IN T2OUT 6 0.1µF RS-232 Outputs VCC To µ-P Supervisor Circuit 14 Shutdown 15 OnLine 13 Status Auto On-line / Control R1IN 3 12 R1OUT TTL/CMOS Outputs 5KΩ 11 R2OUT RS-232 Inputs R2IN 4 5KΩ GND VCC V- 24 23 22 21 20 19 NC 1 18 VL NC 2 17 GND R1IN 3 XR32220 16 C1- R2IN 4 24 pin QFN (4x4mm) 15 Online T1OUT 5 14 T2OUT 6 13 7 8 9 10 11 12 R1OUT 10 TTL/CMOS Inputs C2- V+ 23 0.1µF R2OUT C2+ 20 C1+ 22 V+ Charge Pump T1IN C1+ C1- C2+ 0.1µF 21 16 T2IN 0.1µF VCC C2- 19 VL NC 18 APPLICATIONS ■ Industrial and Single Board Computers ■ Industrial and Process Control Equipment ■ Point-Of-Sales Equipment ■ Building Security and Automation 0.1µF V- 0.1µF NC VL FEATURES ■ Meets true EIA/TIA-232-F Standards from a +3.0V to 5.5V power supply ■ Interoperable with EIA/TIA-232 and adheres to EIA/TIA-562 down to a +2.7V power source ■ 1.65V to 5.5V Logic Interface V pin L ■ AUTO ON-LINE circuitry automatically wakes up from a 1µA shutdown ■ Regulated Charge Pump yields stable RS232 Outputs regardless of VCC variations ■ Enhanced ESD Specifications ■ ±15kV Human Body Model ■ ±15kV IEC61000-4-2 Air Discharge ■ ±8kV IEC61000-4-2 Contact Discharge ■ 250Kbps min transmission rate (speed grade B) ■ 1000Kbps min transmission (speed grade U) ■ -40°C to 125°C ambient operating temperature ■ Lead-free (RoHS 6) package Shutdown Status 17 Figure 1. Typical Application Figure 2. Package Pinout REV1E 1/14 XR32220 Absolute Maximum Ratings Operating Conditions Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Maximum Rating condition for extended periods may affect device reliability and lifetime. Operating Temperature Range................... -40°C to +125°C VCC Supply Range............................................3.0V to 5.5V VL I/O Supply Range (VL ≤ VCC).....................1.65V to 5.5V Supply Voltage (VCC).................................... -0.3V to +6.0V Logic Interface Voltage (VL)...................................VL ≤ VCC V+.................................................................. -0.3V to +7.0V Thermal Information (24 Ld QFN (4x4mm)) θJA.......................................................................39.2(°C/W) V-................................................................... +0.3V to -7.0V θJC.......................................................................15.3(°C/W) V+ + |V-|....................................................................... ±13V ICC (DC VCC or GND current)................................. ±100mA Maximum Junction Temperature................................ 150°C 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................................. -65°C to +150°C ESD Rating RS-232 Bus pins HBM - Human Body Model......................................... ±15kV IEC614000-4-2 Air Discharge..................................... ±15kV IEC614000-4-2 Contact Discharge............................... ±8kV REV1E 2/14 XR32220 Electrical Characteristics Unless otherwise noted: TA = -40°C to +125°C, VCC = 3.3V ± 10% or 5.0V ± 10%, VL = VCC. Limits applying over the full operating temperature range are denoted by a •. Symbol Parameter Conditions • Min Typ Max Units DC CHARACTERISTICS ICC1 Supply Current, Auto On-Line enabled All RxIN open, Online = GND, Shutdown = VL, VCC = VL = 3.3V, TxIN = VL or GND • 1.0 10 µA ICC2 Supply Current, Shutdown Shutdown = GND, VCC = VL = 3.3V, TxIN = VL or GND • 1.0 10 µA ICC3 Supply Current, Auto On-Line disabled Online = Shutdown = VL, no load, VCC = VL = 3.3V, TxIN = VL or GND • 0.3 1.0 mA 1/3 * VL V LOGIC INPUTS AND OUTPUTS VIL Input Low Voltage VIH Input High Voltage IIL Input Leakage Current TxIN, Online, Shutdown; TAMB = 25°C, VIN = 0V to VL IOL Output Leakage Current Status, RxOUT (Receivers disabled); VOUT = 0V to VL • VOL Output Low Voltage Status, RxOUT; IOUT = 1.5mA • VOH Output High Voltage Status, RxOUT; IOUT = -1.5mA • VL - 0.6 TxIN, Online, Shutdown; 1.65V ≤ VL ≤ 5.5V & VL ≤ VCC • • 2/3 * VL V ±0.01 ±1.0 µA ±0.05 ±10 µA 0.4 V V DRIVER OUTPUTS VSWING Output Voltage Swing All drivers outputs loaded with 3KΩ to GND • ±5.0 OR Output Resistance VCC = V+ = V- = 0V, VOUT = ±2V • 300 IOSC Output Short-Circuit Current VOUT = 0V • IOL Output Leakage Current VCC = 0V or 3.0V to 5.5V, VOUT = ±12V • ±5.4 V Ω ±35 ±60 mA ±25 µA +15 V RECEIVER INPUTS IVR Input Voltage Range VIL Input Low Voltage VIH Input High Voltage RXHYS Receiver Input Hysteresis RXR Receiver Input Resistance • -15 VCC = 3.3V • 0.6 1.2 V VCC = 5.0V • 0.8 1.5 V VCC = 3.3V • 1.5 2.4 V VCC = 5.0V • 1.8 2.4 V 0.3 • REV1E 3 5 V 7 KΩ 3/14 XR32220 Electrical Characteristics (Continued) Unless otherwise noted: TA = -40°C to +125°C, VCC = 3.3V ± 10% or 5.0V ± 10%, VL = VCC. Limits applying over the full operating temperature range are denoted by a •. Symbol Parameter Conditions • Min Typ Max Units AUTO ON-LINE CIRCUITRY CHARACTERISTICS (ONLINE = GND, SHUTDOWN = VL, VL = VCC) RXSTSH Receiver Threshold to STATUS high level • -2.7 +2.7 V RXSTSL Receiver Threshold to STATUS low level • -0.3 +0.3 V tSTSH Receiver Threshold to STATUS high Figure 11 0.2 µs tSTSL Receiver Threshold to STATUS low Figure 11 30 µs tONLINE Receiver Thresholds to Drivers Enabled Figure 11, (charge pump fully discharged when receiver threshold crossed) 30 µs tOFFLINE Receiver Thresholds to Drivers Disabled Figure 11 35 µs TIMING CHARACTERISTICS Maximum Output Frequency (Speed U) RL = 3KΩ, CL = 250pF, 1 driver active • 1000 Kbps Maximum Output Frequency (Speed B) RL = 3KΩ, CL = 1000pF, 1 driver active • 250 Kbps tPHL Receiver Propagation Delay (high to low) Receiver input (