ST3241EBTR

ST3241EB, ST3241EC ±15 kV ESD protected 3 to 5.5 V, 400 kbps, RS-232 transceiver with auto power-down Datasheet - production data The ST3241E has a proprietary low-dropout transmitter output stage enabling true RS-232 performance from a 3.0 V to 5.5 V supply with a dual charge pump. The device is guaranteed to run at data rates of 250 kbps while maintaining RS-232 output levels. Features ESD protection for RS-232 I/O pins: ±8 kV IEC 1000-4-2 contact discharge ±15 kV human body model 1 µA supply current achieved when in auto power-down 250 kbps minimum guaranteed data rate Guaranteed 6 V/µs slew rate range Guaranteed mouse drive ability 0.1 µF external capacitors Meets EIA/TIA-232 specifications down to 3V Available in SSOP 28 package It is a complete serial port (3 drivers, 5 receivers) intended for notebook or sub-notebook computers. Receivers R1 and R2 have extra outputs in addition to their standard outputs. These extra outputs are always active. Typical applications are in notebooks, subnotebooks, palmtop computers, battery-powered equipment, hand-held equipment, peripherals, and printers. Description The ST3241E device consists of 3 drivers, 5 receivers, and a dual charge-pump circuit. The device meets the requirements of EIA/TIA and V.28/V.24 communication standards providing high data rate capability and enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ±8 kV using IEC 1000-4-2 contact discharge and ±15 kV using the human body model. The receiver R2 is always active to implement a wake-up feature for the serial port. March 2017 DocID9066 Rev 6 This is information on a product in full production. 1/14 www.st.com Contents ST3241EB, ST3241EC Contents 1 Pin information ................................................................................ 3 2 Absolute maximum ratings and ESD performance ....................... 5 3 4 Electrical characteristics ................................................................ 6 Application ....................................................................................... 8 5 Package information ....................................................................... 9 5.1 SSOP 28 package information ........................................................ 10 5.2 SSOP 28 tape and reel package information .................................. 11 6 Ordering information..................................................................... 12 7 Revision history ............................................................................ 13 2/14 DocID9066 Rev 6 ST3241EB, ST3241EC 1 Pin information Pin information Figure 1: Pin connections (top view) Table 1: Pin description Pin number Symbol Name and function 1 C2+ Positive terminal of inverting charge pump capacitor 2 C2 Negative terminal of inverting charge pump capacitor 3 V- –5.5 V generated by the charge pump 4 R1IN First receiver input voltage 5 R2IN Second receiver input voltage 6 R3IN Third receiver input voltage 7 R4IN Fourth receiver input voltage 8 R5IN Fifth receiver input voltage 9 T1OUT First transmitter output voltage 10 T2OUT Second transmitter output voltage 11 T3OUT Third transmitter output voltage 12 T3IN Third transmitter input voltage 13 T2IN Second transmitter input voltage 14 T1IN First transmitter input voltage 15 R5OUT Fifth receiver output voltage 16 R4OUT Fourth receiver output voltage 17 R3OUT Third receiver output voltage 18 R2OUT Second receiver output voltage 19 R1OUT First receiver output voltage 20 R2OUTB Non-inverting complementary receiver output, always active for wake-up DocID9066 Rev 6 3/14 Pin information ST3241EB, ST3241EC Pin number Symbol Name and function 21 R1OUTB Non-inverting complementary receiver output, always active for wake-up 22 SHDN Shutdown control, active low 23 EN Receiver enable, active low 24 C1- Negative terminal of voltage - charge pump capacitor 25 GND Ground 26 VCC Supply voltage 27 V+ 5.5 V generated by the charge pump 28 C1+ Positive terminal of voltage - charge pump capacitor Table 2: Shutdown and enable control truth table SHDN EN TOUT 0 0 ROUT TOUTB Active High Z 1 High Z 0 Active Active 1 Active 1 4/14 DocID9066 Rev 6 High Z ST3241EB, ST3241EC 2 Absolute maximum ratings and ESD performance Absolute maximum ratings and ESD performance Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Table 3: Absolute maximum ratings Symbol Parameter Value Unit –0.3 to 6 VCC Supply voltage V+ Extra positive voltage (1) (VCC – 0.3) to 7 V- Extra negative voltage (1) 0.3 to -7 (1) V+ + IV-I SHDN , EN , TIN RIN V -0.3 to 6 ± 25 Transmitter output voltage range ROUT, ROUTB, INVALID Tstg Input voltage Receiver input voltage range TOUT tSHORT 13 Receiver output voltage range ± 13.2 –0.3 to (VCC + 0.3) Short circuit duration on TOUT (one at a time) Continuous Storage temperature range –65 to 150 °C Notes: (1)V+ and V- can have a maximum magnitude of 7 V, but their absolute addition cannot exceed 13 V Table 4: ESD performance: transmitter outputs, receiver inputs Symbol Parameter ESD ESD protection voltage Test conditions Min. Human body model ± 15 IEC 1000-4-2 (contact discharge) ±8 DocID9066 Rev 6 Typ. — Max. Unit — kV 5/14 Electrical characteristics 3 ST3241EB, ST3241EC Electrical characteristics Table 5: Electrical characteristics, C1 - C4 = 0.1 µF, VCC = 3 V to 5.5 V, TA = –40 to 85 °C, unless otherwise specified, typical values are referred to TA = 25 °C Symbol Parameter Test conditions ISUPPLY Supply current No load VCC = 3.3 V or 5 V, TA = 25 °C ISHDN Shutdown supply current Min. Typ. Max. Unit 0.3 1 mA 1 10 µA — SHDN = GND, TA = 25 °C Table 6: Logic input and receiver output electrical characteristics, C1 - C4 = 0.1 µF, VCC = 3 V to 5.5 V, TA = –40 to 85 °C, unless otherwise specified Symbol Parameter VTIL Input logic threshold low VTIH Input logic threshold high IIL Test conditions Input leakage current Min. Typ. TIN, EN , SHDN Max. Unit 0.8 V VCC = 3.3 V 2 VCC = 5 V 2.4 TIN, EN , SHDN ± 0.01 ± 1.0 µA Table 7: Receiver output electrical characteristics, C1 - C4 = 0.1 µF, VCC = 3 V to 5.5 V, TA = –40 to 85 °C, unless otherwise specified Symbol Parameter Test conditions IOL Output leakage current ROUT, EN , receiver VOL Output voltage low IOUT = 1.6 mA VOH Output voltage high IOUT = -1 mA Min. Typ. Max. Unit ± 0.05 ± 10 µA disabled — 0.4 VCC – 0.6 VCC – 0.1 V Table 8: Transmitter electrical characteristics, C1 - C4 = 0.1 µF, VCC = 3 V to 5.5 V, TA = –40 to 85 °C, unless otherwise specified 6/14 Symbol Parameter Test conditions Min. Typ. VTOUT Output voltage swing All transmitter outputs are loaded with 3 kΩ to GND ±5 ± 5.4 V ROUT Output resistance VCC = V+ = V- = 0 V, VOUT = ± 2 V 300 10 M Ω ISC Output short circuit current IL Output leakage current VCC = 0 to 5.5 V, transmitter output = ±12 V, transmitter disabled VTO Transmitter output voltage T1IN = T2IN = GND, T3IN = VCC, T3OUT loaded with 3 kΩ to GND, T1OUT and T2OUT loaded with 2.5 mA each ± 35 DocID9066 Rev 6 ±5 Max. Unit ± 60 mA ± 25 µA V ST3241EB, ST3241EC Electrical characteristics Table 9: Receiver electrical characteristics, C1 - C4 = 0.1 µF, VCC = 3 V to 5.5 V, TA = –40 to 85 °C, unless otherwise specified Symbol Parameter VRIN Receiver input voltage operating range VRIL RS-232 Input threshold low VRIH Test conditions Min. Typ. -25 Max. Unit 25 TA = 25 °C, VCC = 3.3 V 0.6 1.2 TA = 25 °C, VCC = 5.0 V 0.8 1.5 V TA = 25 °C, VCC = 3.3 V 1.5 2.4 TA = 25 °C, VCC = 5.0 V 1.8 2.4 RS-232 Input threshold high VRIHYS Input hysteresis RRIN Input resistance 0.3 TA = 25 °C 3 5 kΩ 7 Table 10: Timing characteristics, C1 - C4 = 0.1 µF, VCC = 3 V to 5.5 V, TA = –40 to 85 °C, unless otherwise specified Symbol Parameter Test conditions Min. Typ. DR Maximum data rate RL = 3 kΩ, CL= 1000 pF one transmitter switching 250 tPHL, tPLH Receiver propagation delay RIN to ROUT, CL = 150 pF tT_SKEW Transmitter skew 100 tR_SKEW Receiver skew 300 Max. Unit kbps 0.15 µs ns SRT Transition slew rate TA = 25 °C, RL = 3 k to 7 kΩ, VCC = 3.3 V measured from 3 V to –3 V or –3 V to 3 V, CL = 150 pF to 1000 pF TA = 25 °C, RL = 3 k to 7 kΩ, VCC = 3.3 V measured from 3 V to –3 V or –3 V to 3 V, CL = 150 pF to 2500 pF DocID9066 Rev 6 6 30 V/µs 4 30 7/14 Application 4 ST3241EB, ST3241EC Application Figure 2: Application circuits Table 11: Required minimum capacitance value (µF) 8/14 VCC C1 C2 C3 C4 Cbypass 3.0 to 3.6 0.1 0.1 0.1 0.1 0.1 4.5 to 5.5 0.047 0.33 0.33 0.33 0.1 3.0 to 5.5 0.1 0.47 0.47 0.47 0.1 DocID9066 Rev 6 ST3241EB, ST3241EC 5 Package information Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK ® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. DocID9066 Rev 6 9/14 Package information 5.1 ST3241EB, ST3241EC SSOP 28 package information Figure 3: SSOP 28 package outline Table 12: SSOP 28 mechanical data Dimensions Ref. Millimeters Min. Typ. A Max. Min. Typ. 2 A1 0.050 A2 1.65 b Max. 0.079 0.002 1.85 0.065 0.22 0.38 0.009 0.015 c 0.09 0.25 0.004 0.010 D 9.9 10.2 10.5 0.390 0.402 0.413 E 7.4 7.8 8.2 0.291 0.307 0.323 E1 5 5.3 5.6 0.197 0.209 0.220 e 10/14 Inches 1.75 0.65 K 0° L 0.55 0.75 0.069 0.073 0.0256 10 ° 0° 0.95 0.022 DocID9066 Rev 6 10 ° 0.030 0.037 ST3241EB, ST3241EC 5.2 Package information SSOP 28 tape and reel package information Figure 4: SSOP 28 tape and reel package outline 1. Drawing is not to scale Table 13: SSOP 28 tape and reel mechanical data Dimensions Ref. Millimeters Min. Typ. A Inches Max. Min. Typ. 330 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T Ao 8.4 Bo 13.2 — Max. 0.504 22.4 0.519 — 0.882 8.6 0.331 10.7 10.9 0.421 0.429 Ko 2.9 3.1 0.114 0.122 Po 3.9 4.1 0.153 0.161 P 11.9 12.1 0.468 0.476 DocID9066 Rev 6 0.339 11/14 Ordering information 6 ST3241EB, ST3241EC Ordering information Table 14: Order codes 12/14 Order code Temperature range ST3241EBPR -40 to 85 °C ST3241ECPR 0 to 70 °C Package Packaging SSOP 28 (tape and reel) 1350 parts per reel DocID9066 Rev 6 Marking ST3241EB ST3241EC ST3241EB, ST3241EC 7 Revision history Revision history Table 15: Document revision history Date Revision 21-Jun-2004 2 The IL (Output Leakage Current) mA ==> µA in table 8 03-Apr-2006 3 Order code updated. 13-Nov-2007 4 Added Table 1 28-Sep-2010 5 Removed TSSOP28 package and all references from datasheet; updated ECOPACK® text in Section 5; reformatted document; minor textual updates. 6 Features: updated units of slew rate change (from 6 V/ms to 6 V/µs) Moved "Device summary" table to Section 6: "Ordering information" and added "Marking". Table 12: removed "BSC" from "e" dimension 08-Mar-2017 Changes DocID9066 Rev 6 13/14 ST3241EB, ST3241EC IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics 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. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2017 STMicroelectronics – All rights reserved 14/14 DocID9066 Rev 6