XR32430EUCRTR-F

XR32430/XR32431 3-Driver/5-Receiver Intelligent RS-232 Transceiver with 1.65V-5.5V Interface General Description FEATURES The XR32430 and XR32431 products are 3 driver/ 5 receiver RS-232 transceivers. The XR32431 features a variable low voltage logic interface, down to 1.65V. These products are intended for portable or hand-held applications such as notebook and palmtop computers. The XR32430EB and XR32431EB devices feature slew-rate limited outputs for reduced crosstalk and EMI. The XR32430EH and XR32431EH devices are optimized for mid speed applications, with data rates up to 460Kbps. The XR32430EU and XR32431EU devices are optimized for high speed designs with data rates up to 1Mbps, easily meeting the demands of high speed RS-232 applications. • 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 VL pin (XR32431) • AUTO ON-LINE circuitry automatically wakes up from a 1A shutdown • Regulated Charge Pump yields stable RS-232 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/460Kbps/1Mbps min transmission rates (speed grades B/H/U) • -40°C to 85°C ambient operating temperature • Lead-free (RoHS 6) package The XR32430/31 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 Exar's driver architecture allow the XR32430/31 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. APPLICATIONS • Industrial and Single Board Computers • Industrial and Process Control Equipment • Point-Of-Sales Equipment • Building Security and Automation Ordering Information – page 13 Typical XR32431 Application and Package Pinout 0.1F TTL/CMOS Inputs 23 28 C1+ C1- 29 C2+ C2- 30 C2- C2+ C1+ V+ VCC VL VL 0.1F 0.1F 26 V- 25 NC VCC VL 0.1F 32 31 30 29 28 27 26 25 VCC V+ 26 0.1F Charge Pump V- R1IN 1 GND R2IN 2 C1- R3IN 3 R4IN 4 XR32431 R5IN 5 32 pin QFN (5x5mm) T1OUT 6 30 0.1F 12 T1IN T1OUT 6 11 T2IN T2OUT 7 10 T3IN T3OUT 8 RS-232 Outputs VCC 21 Shutdown 22 To -P Supervisor Circuit 20 OnLine Status Auto On-line / Control 18 R1OUT R1IN 1 R2IN 2 5K 17 R2OUT R2OUT 5K 19 R2OUT TTL/CMOS Outputs 15 R3OUT R3IN 3 R4IN 4 R5IN 5 5K 14 R4OUT T2OUT 18 R1OUT T3OUT 17 R2OUT RS-232 Inputs © 2014 Exar Corporation 1 / 13 NC 12 T1IN R3OUT 11 T2IN 24 R4OUT 10 T3IN 5K R5OUT 9 13 R5OUT NC 5K exar.comXR32430_XR32431 Rev 1A XR32430/XR32431 Absolute Maximum Ratings Output Voltage 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. TxOUT.....................................................................±13.2V RxOUT, Status.............................................-0.3V to +6.0V Supply Voltage (VCC)...................................-0.3V to +6.0V Short-Circuit Duration Logic Interface Voltage (VL)................................VL ≤ VCC TxOUT.............................................................Continuous V+................................................................-0.3V to +7.0V Storage Temperature...............................-65°C to +150°C V-.................................................................+0.3V to -7.0V V+ + |V-| ....................................................................±13V ESD Rating RS-232 Bus pins ICC (DC VCC or GND current).............................±100mA HBM - Human Body Model....................................±15kV Junction Temperature...............................................125°C IEC614000-4-2 Air Discharge................................±15kV Input Voltages IEC614000-4-2 Contact Discharge..........................±8kV TxIN, ONLINE, Shutdown,..........................-0.3V to +6.0V RxIN..........................................................................±15V Operating Conditions Consumer Operating Temperature Range.....................0°C to +70°C Industrial Operating Temperature Range.....................-40°C to +85°C VCC Supply Range........................................... 3.0V to 5.5V VL I/O Supply Range (VL ≤ VCC)..................... 1.65V to 5.5V Thermal Information (32 Ld QFN (5x5mm)) JA .....................................................................30.1(°C/W) JC .....................................................................10.1(°C/W) © 2014 Exar Corporation 2 / 13 exar.com/XR32430_XR32431 Rev 1A XR32430/XR32431 Electrical Characteristics Unless otherwise noted: TA = -40°C to +85°C, VCC = 3.3V±10% or 5.0V±10%, VL = VCC 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, = VL = 3.3V, TxIN = VL or GND • 0.3 1.0 mA 0.8 V VCC LOGIC INPUTS AND OUTPUTS - XR32430 VIL Input Low Voltage VIH Input High Voltage IIL TxIN, Online, Shutdown ; 3.0V≤ VCC ≤ 5.5V • Input Leakage Current TxIN, Online, Shutdown ; VIN = 0V to VCC • ±0.01 ±1.0 A IOL Output Leakage Current Status, RxOUT (Receivers disabled); VOUT = 0V to VCC • ±0.05 ±10 A VOL Output Low Voltage Status, RxOUT; IOUT = 1.5mA • 0.4 V VOH Output High Voltage Status, RxOUT; IOUT = -1.5mA • TxIN, Online, Shutdown ; 1.65V≤ VL ≤ 5.5V & VL ≤ VCC • • 2.4 V VCC - 0.6 V LOGIC INPUTS AND OUTPUTS - XR32431 VIL Input Low Voltage VIH Input High Voltage IIL Input Leakage Current TxIN, Online, Shutdown ; VIN = 0V to VL • ±0.01 ±1.0 A IOL Output Leakage Current Status, RxOUT (Receivers disabled); VOUT = 0V to VL • ±0.05 ±10 A VOL Output Low Voltage Status, RxOUT; IOUT = 1.5mA • 0.4 V VOH Output High Voltage Status, RxOUT; IOUT = -1.5mA • VL - 0.6 • 1/3 * VL 2/3 * VL V V V DRIVER OUTPUTS VSWING Output Voltage Swing All drivers outputs loaded with 3K 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  ±35 ±60 mA ±25 A +15 V RECEIVER INPUTS IVR Input Voltage Range VIL Input Low Voltage © 2014 Exar Corporation • -15 VCC = 3.3V • 0.6 1.2 V VCC = 5.0V • 0.8 1.5 V 3 / 13 exar.com/XR32430_XR32431 Rev 1A XR32430/XR32431 Symbol VIH Parameter Input High Voltage RXHYS Receiver Input Hysteresis RXR Receiver Input Resistance Conditions Min Typ Max Units VCC = 3.3V • 1.5 2.4 V VCC = 5.0V • 1.8 2.4 V 0.3 • 3 5 V 7 K 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 s tSTSL Receiver Threshold to STATUS low Figure 11 30 s tONLINE Receiver Thresholds to Drivers Enabled Figure 11, (charge pump fully discharged when receiver threshold crossed) 30 s tOFFLINE Receiver Thresholds to Drivers Disabled Figure 11 35 s TIMING CHARACTERISTICS fMAX Max Output Frequency (Speed U) RL = 3K, CL = 250pF, 1 driver active, TAMB = 0°C to 70°C • 1000 Kbps Max Output Frequency (Speed H) RL = 3K, CL = 1000pF, 1 driver active, TAMB = 0°C to 70°C • 460 Kbps Max Output Frequency (Speed B) RL = 3K, CL = 1000pF, 1 driver active • 250 Kbps tPHL Receiver Propagation Delay (high to low) Receiver input (