ST3232EB ST3232EC - st.com

1 This is information on a product in full production. July 2018 DocID8784 Rev 71/14ST3232 EBST3232EC 15 kV ESD protection 3 to V low power, up to 250 kbps, RS-232 drivers and receiversDatasheet - production dataFeatures ESD protection for RS-232 I/O pins 15 kV human body model 8 kV IEC 1000-4-2 contact discharge 300 A supply current 250 kbps minimum guaranteed data rate 6 V/ s minimum guaranteed slew rate Meet EIA/TIA-232 specifications down to 3 V Available in SO-16 and TSSOP16 Applications Notebook, subnotebook and palmtop computers Battery-powered equipment Hand-held equipment Peripherals and printersDescriptionThe ST3232E is a 3 V powered EIA/TIA-232 and communication interfaces with low power requirements, high data-rate capabilities and enhanced electrostatic discharge (ESD) protection to 8 kV using IEC1000-4-2 contact discharge and 15 kV using the human body model.

2 The ST3232E has a proprietary low-dropout transmitter output stage providing true RS-232 performance from 3 to 5 V supplies with a dual charge pump. The charge pump requires only four small F standard external capacitors for operations from 3 V ST3232E has two receivers and two device is guaranteed to run at data rates of 250 kbps while maintaining RS-232 output levels. TSSOP16SO-16 Table 1. Device summaryOrder codeTemperature rangePackageST3232 ECDR0 to 70 CSO-16 (tape and reel)ST3232 EBDR-40 to 85 CSO-16 (tape and reel)ST3232 ECTR0 to 70 CTSSOP16 (tape and reel)ST3232 EBTR-40 to 85 CTSSOP16 (tape and reel) , ST3232EC2/14 DocID8784 Rev 7 Contents1 Pin configuration .. 32 Absolute maximum ratings .. 43 Electrical characteristics.

3 54 Application .. 75 Typical performance characteristics .. 86 Package information .. package information .. package information .. 127 Revision history .. 13 DocID8784 Rev 73/14ST3232EB, ST3232 ECPin configuration141 Pin configurationFigure 1. Pin connection Table 2. Pin descriptionPin n SymbolName and function1C1+Positive terminal for the first charge pump capacitor2V+Doubled voltage terminal3C1-Negative Terminal for the first charge pump capacitor4C2+Positive terminal for the second charge pump capacitor5C2-Negative terminal for the second charge pump capacitor6V-Inverted voltage terminal7T2 OUTS econd transmitter output voltage8R2 INSecond receiver input voltage9R2 OUTS econd receiver output voltage10T2 INSecond transmitter input voltage11T1 INFirst transmitter input voltage12R1 OUTF irst receiver output voltage13R1 INFirst receiver input voltage14T1 OUTF irst transmitter output voltage15 GNDG round16 VCCS upply voltageAbsolute maximum ratingsST3232EB.

4 ST3232EC4/14 DocID8784 Rev 72 Absolute maximum ratings Note:Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not applied V+ and V- can have a maximum magnitude of +7 V, but their absolute addition can not exceed 13 on internal charge pump, intrinsic self limitation allows exceeding those values without any voltage sequence (VCC, then V+, then V-) is critical, therefore it is not recommended to use this device using externally applied voltage to V+ and V-. Table 3. Absolute maximum ratingsSymbolParameterValueUnitVCCS upply to 6VV+Doubled voltage terminal(VCC - ) to 7VV-Inverted voltage to -7VV+ +|V-|13 VTINT ransmitter input voltage to 6 VRINR eceiver input voltage range 25 VTOUTT ransmitter output voltage range output voltage to (VCC + )VtSHORTT ransmitter output short-to-ground timeContinuousTjMaximum junction temperature150 CRth-jcThermal resistance junction-to-case(1) (2)1.

5 Short-circuits can cause excessive heating and destructive Rth are typical values. C/WSO-1630 TSSOP1625 Rth-jaThermal resistance junction-to-ambient (1) (2)SO-1695 TSSOP1695 Figure 2. ESD performance: transmitter outputs, receiver inputsSymbolParameterTest protection voltageHuman body model 15kVESDESD protection voltageIEC-1000-4-2 8kVDocID8784 Rev 75/14ST3232EB, ST3232 ECElectrical characteristics143 Electrical characteristicsC1 - C4 = F, VCC = 3 V to V, TA = -40 to 85 C, unless otherwise specified. Typical values are referred to TA = 25 C. C1 - C4 = F, VCC = 3 V to V, TA = -40 to 85 C, unless otherwise specified. Typical values are referred to TA = 25 C. C1 - C4 = F tested at V 10 %, VCC = 3 V to V, TA = -40 to 85 C, unless otherwise specified.

6 Typical values are referred to TA = 25 C. Table 4. Electrical characteristicsSymbolParameterTest Power supply current No Load, VCC = 3 V or 5 V, TA = 25 5. Logic inputSymbolParameterTest logic threshold input logic threshold highVCC = V2 VVCC = 5 leakage currentT-IN 1 ATable 6. Transmitter SymbolParameterTest voltage swingAll transmitter outputs are loaded with 3 k to GND 5 output resistanceVCC = 0 V, VOUT = 2 V30010 MWISCO utput short-circuit current 60mAITOLO utput leakage currentVCC = 0 V or V to VVOUT = 12 VTransmitters disable 25 AElectrical characteristicsST3232EB, ST3232EC6/14 DocID8784 Rev 7C1 - C4 = F tested at V 10%, VCC = 3 V to V, TA = -40 to 85 C, unless otherwise specified.

7 Typical values are referred to TA = 25 C. C1 - C4 = F tested at V 10%, VCC = 3 V to V, TA = -40 to 85 C, unless otherwise specified. Typical values are referred to TA = 25 C Table 7. ReceiverSymbolParameterTest input voltage operating range-2525 VVRILRS-232 input threshold lowTA = 25 C, VCC = = 25 C, VCC = 5 input threshold highTA = 25 C, VCC = = 25 C, VCC = 5 resistanceTA = 25 C357k VROLTTL/CMOS Output voltage lowIOUT = Output voltage high IOUT = -1 8. Timing characteristicsSymbolParameterTest transfer rateRL = 3 k , CL2= 1000 pFone transmitter switching250kbpstPHLR tPLHRP ropagation delay input to outputRXIN = RXOUT, CL = 150 stOERR eceiver output enable time Normal operation50nstODRR eceiver output disable time Normal operation50ns|tPHLT- tTHL|Transmitter propagation delay difference(1)200ns|tPHLR- tTHR|Receiver propagation delay difference50nsSRTT ransition slew rateTA = 25 C RL = 3 k to 7 k VCC= V measured from +3 V to -3 V or -3 V to +3 VCL = 150 pF to 1000 pFCL = 150 pF to 2500 pF643030V/ sV/ s1.

8 Transmitter skew is measured at the transmitter zero-cross Rev 77/14ST3232EB, ST3232 ECApplication144 Application Figure 3. Application circuits Table 9. Capacitance value ( F) to to to performance characteristicsST3232EB, ST3232EC8/14 DocID8784 Rev 75 Typical performance characteristicsUnless otherwise specified TJ = 25 4. Output current vs. output high voltage Figure 5. Output current vs. output high voltage Figure 6. Output current vs. output low voltage Figure 7. Output current vs. output low voltage Figure 8. Voltage transfer characteristics for transmitter inputsFigure 9. Receiver input resistance DocID8784 Rev 79/14ST3232EB, ST3232 ECPackage information146 Package informationIn order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance.

9 ECOPACK specifications, grade definitions and product status are available at: ECOPACK is an ST informationST3232EB, ST3232EC10/14 DocID8784 Rev SO-16 package informationFigure 10. SO-16 package outline Dimension D does not include mold flash, protrusions or gate burrs. Mold flash, protrusions or gate burrs shall not exceed mm in total (both side).Dimension E1 does not include interlead flash or flash or protrusions shall not exceed per referred to the bottom side of the 10. SO-16 package mechanical (mm) B*N H 'E DocID8784 Rev 711/14ST3232EB, ST3232 ECPackage information14 Figure 11. SO-16 recommended footprintPackage informationST3232EB, ST3232EC12/14 DocID8784 Rev TSSOP-16 package informationFigure 12.

10 TSSOP-16 package outlineTSSOP stands for thin shrink small outline package. Dimension D does not include mold flash, protrusions or gate burrs. Mold flash, protrusions or gate burrs shall not exceed mm per side. Dimension E1 does not include interlead flash or protrusions. Interlead flash or protrusions shall not exceed mm per 11. TSSOP-16 package mechanical B(DocID8784 Rev 713/14ST3232EB, ST3232 ECRevision history147 Revision historyTable 12. Document revision historyDateRevisionChanges06-Sep-20063 Order codes : Table 1 and note on Tab l e : Table 1 on page : Table 1 on page Table 3: Absolute maximum ratings and Section 6: Package , ST3232EC14/14 DocID8784 Rev 7 IMPORTANT NOTICE PLEASE READ CAREFULLYSTM icroelectronics NV and its subsidiaries ( ST ) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice.)