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january 2009 rev 3 1/16 16 STLV3243EB 15 kv esd protected 2.3 to 5.5 v, 400 kbps, rs-232 transceiver with auto-power-down features esd protection for rs-232 i/o pins: ? 8 kv iec 1000-4-2 contact discharge ? 15 kv human body model 1 ma supply current achieved when in auto- power-down 250 kbps minimum guaranteed data rate guaranteed 6 v/ms slew rate range guaranteed mous e drive ability 0.1 f external capacitors meet eia/tia-562 specifications available in flip-chip28 package description the STLV3243EB device consists of 3 drivers, 5 receivers and a dual charge-pump circuit. all transmitter outputs and receiver inputs are protected up 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 serial port. the device is guaranteed to run at data rates of 250 kbps while maintaining rs-562 output levels. the auto-power-down feature operates when forceon is low and forceoff is high. during this operation mode, if the device does not sense a valid rs-562 signal, the driver outputs are disabled. if forceoff is set low, both drivers and receivers (expert r2b) are shut off, and supply current is reduced to 1 a. disconnecting the serial port or turning off the peripheral drives causes the auto-power-down condition to occur. auto-power-down can be disabled when forceon and forceoff are high, and this should be done when driving a serial mouse. with auto-power-down enabled, the device is automatically activated when a valid signal is applied to any receiver input. typical applications are notebooks, pdas, smart- phones, hand-held equipment, palmtop computers, peripherals, battery-powered equipment, and printers. flip-chip28 table 1. device summary order code temperature range package packaging STLV3243EBjr - 40 to 85 c flip-chip28 (6x5 mm) 2500 parts per reel www.st.com obsolete product(s) - obsolete product(s)
contents STLV3243EB 2/16 contents 1 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5 timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 obsolete product(s) - obsolete product(s)
STLV3243EB pin configuration 3/16 1 pin configuration figure 1. pin configuration (bottom view, bumps side) table 2. pin description pin n symbol name and function a1 r2 in second receiver input voltage a2 r3 in third receiver input voltage a3 r4 in fourth receiver input voltage a4 r5 in fifth receiver input voltage a5 t1 out first transmitter output voltage a6 t2 out second transmitter output voltage b1 v- -5.5 v generated by the charge pump b2 r1 in first receiver input voltage b3 t3 out third transmitter output voltage b4 t3 in third transmitter input voltage b5 t1 in first transmitter input voltage b6 t2 in second transmitter input voltage c1 c 2 + positive terminal of inverting charge pump capacitor c2 c 2 - negative terminal of inverting charge pump capacitor c5 r4 out fourth receiver output voltage c6 r5 out fifth receiver output voltage d1 c 1 + positive terminal of voltage- charge pump capacitor d2 v+ 5.5 v generated by the charge pump d3 v cc supply voltage d4 forceon drive high to override automatic circuitry keeping transmitters on (forceoff must be high) d5 r1 out first receiver output voltage d6 r3 out third receiver output voltage obsolete product(s) - obsolete product(s)
pin configuration STLV3243EB 4/16 e1 gnd ground e2 c 1 - negative terminal of voltage- charge pump capacitor e3 forceoff drive low to shut down transmitters and on-board power supply. this over- rides all automatic circuitry and forceon e4 invalid output of the valid signal detector. indicates if a valid rs-232 level is present on receiver inputs logic "1" e5 r2 outb non-inverting complementary receiver output, always active for wake-up e6 r2 out second receiver output voltage table 2. pin description (continued) pin n symbol name and function table 3. invalid truth table rs-232 signal present at any receiver input invalid output yes h no l table 4. output control truth table force on force off valid receiver level operation status t out r out r 2outb x 0 x shutdown (forceoff) high z high z active 11 x normal operating (forceon) active active active 0 1 yes normal operating (auto-power-down) active active active 01 no shutdown (auto-power-down) high z active active obsolete product(s) - obsolete product(s)
STLV3243EB maximum ratings 5/16 2 maximum ratings note: absolute maximum ratings are those values beyond which damage to the device may occur. functional operation under these condition is not implied. table 5. absolute maximum ratings symbol parameter value unit v cc supply voltage -0.3 to 6 v v+ doubled voltage terminal (v cc -0.3) to 7 v v- inverted voltage terminal 0.3 to -7 v v+ +|v-| 13 v forceon, forceoff, t in input voltage -0.3 to 6 v r in receiver input voltage range 25 v t out transmitter output voltage range 13.2 v r out r outb invalid receiver output voltage range -0.3 to (v cc + 0.3) v t short short circuit duration on t out (one at a time) continuous t stg storage temperature range -65 to 150 c table 6. esd performance: transmitter outputs, receiver inputs symbol parameter test conditions min. typ. max. unit esd esd protection voltage human body model 15 kv esd esd protection voltage iec 1000-4-2 (contact discharge) 8kv obsolete product(s) - obsolete product(s)
electrical characteristics STLV3243EB 6/16 3 electrical characteristics table 7. electrical characteristics (c1 - c4 = 0.1 f, v cc = 2.3 v to 5.5 v, t a = -40 to 85 c, unless otherwise specified. typical values are referred to t a = 25 c) symbol parameter test conditions min. typ. max. unit i ashdn supply current auto- power-down forceoff = gnd,forceon = v cc all r_in open or grounded 110a i supply supply current forceon = forceoff = v cc 0.3 1 ma i shdn shutdown supply current forceoff = gnd 1 10 a table 8. logic input electrical characteristics (c1 - c4 = 0.1 f, v cc = 2.3 v to 5.5 v, t a = -40 to 85 c, unless otherwise specified. typical values are referred to t a = 25 c) symbol parameter test conditions min. typ. max. unit v til input logic threshold low t-in, forceon, forceoff v cc = 3.0 v v cc = 2.3 v 0.8 0.5 v v v tih input logic threshold high t-in, forceon, forceoff v cc = 3.0 v v cc = 2.3 v 2 1.4 v v v thys transmitter input hysteresis 0.4 v i il input leakage current t-in, forceon, forceoff 0.01 1.0 a table 9. receiver outputs electrical characteristics (c1 - c4 = 0.1 f, v cc = 2.3 v to 5.5 v, t a = -40 to 85 c, unless otherwise specified. typical values are referred to t a = 25 c) symbol parameter test conditions min. typ. max. unit i ol output leakage current receiver disabled 0.05 10 a v ol output voltage low i out = 1.6 ma 0.4 v v oh output voltage high i out = -1 ma v cc -0.6 v cc -0.1 v obsolete product(s) - obsolete product(s)
STLV3243EB electrical characteristics 7/16 table 10. auto-power-down electrical characteristics (c1 - c4 = 0.1 f, v cc = 2.3 v to 5.5 v, t a = -40 to 85 c, unless otherwise specified. typical values are referred to t a = 25 c, forceon = gnd, forceoff = v cc ) symbol parameter test conditions min. typ. max. unit v rite receiver input threshold to invalid output voltage high ( figure 3 ) positive threshold 2.7 v negative threshold 2.7 v v ritd receiver input threshold to invalid output voltage low ( figure 3 ) -0.3 0.3 v v iol invalid output voltage low i out = 1.6 ma 0.4 v v ioh invalid output voltage high i out = -1 ma v cc -0.6 v t wu receiver or transmitter edge transmitter enabled ( figure 3 ) 100 s t invh receiver positive or negative threshold to invalid high ( figure 3 ) 0.2 s t invl receiver positive or negative threshold to invalid low ( figure 3 ) 30 s table 11. transmitter electrical characteristics (c1 - c4 = 0.1 f, v cc = 2.3 v to 5.5 v, t a = -40 to 85 c, unless otherwise specified. typical values are referred to t a = 25 c) symbol parameter test conditions min. typ. max. unit v tout output voltage swing all transmitter outputs are loaded with 3 k to gnd v cc = 3.0 v v cc = 2.3 v 3.7 4.4 3.9 v r out output resistance v cc = v+ = v- = 0 v, v out = 2 v 300 10m i sc output short circuit current v cc = 3.3 v 40 60 ma i l output leakage current v cc = 0 to 5.5v, transmitter output = 12 v, transmitter disabled 25 ma v ot transmitter output voltage t1in = t2in = gnd,t3in = v cc t3out loaded with 3 k to gnd t1out and t2out loaded with 2.5 ma each 3.7 v obsolete product(s) - obsolete product(s)
electrical characteristics STLV3243EB 8/16 table 12. receiver electrical characteristics (c1 - c4 = 0.1 f, v cc = 2.3 v to 5.5 v, t a = -40 to 85 c, unless otherwise specified. typical values are referred to t a = 25 c) symbol parameter test conditions min. typ. max. unit v rin receiver input voltage operating range -25 25 v v ril rs-232 input threshold low t a = 25 c, v cc = 3.0 v t a = 25 c, v cc = 2.3 v 0.6 0.4 1.0 0.8 v v rih rs-232 input threshold high t a = 25 c, v cc = 3.0 v t a = 25 c, v cc = 2.3 v 1.4 1.2 2.4 2.0 v v rihys input hysteresis 0.5 v r rin input resistance t a = 25 c 3 5 7 k table 13. timing characteristics (c1 - c4 = 0.1 f, v cc = 2.3 v to 3 v, t a = -40 to 85 c, unless otherwise specified. typical values are referred to t a = 25 c) symbol parameter test conditions min. typ. max. unit d r maximum data rate r l = 3 k , c l = 1000 pf one transmitter switching 250 kbps t phl t plh receiver propagation delay r in to r out , c l = 150 pf 0.15 s t t_skew transmitter skew 60 ns t r_skew receiver skew 120 ns s rt transition slew rate t a = 25c r l = 3k to 7k , v cc = 3 v measured from +3 v to -3 v or -3 v to +3 v c l = 150 pf to 1000 pf 430v/s obsolete product(s) - obsolete product(s)
STLV3243EB application circuit 9/16 4 application circuit figure 2. application circuit table 14. required minimum capacitance value (f) v cc (v) c 1 c 2, c 3, c 4, c bypass 2.3 to 3.0 0.1 0.1 obsolete product(s) - obsolete product(s)
timing diagrams STLV3243EB 10/16 5 timing diagrams figure 3. auto-power-down input levels figure 4. auto-power-down input timing obsolete product(s) - obsolete product(s)
STLV3243EB timing diagrams 11/16 figure 5. data rate v cc = 2.3 v, i o = 100 ma, c i = 1 f (tantalum), c o = 10 f (tantalum) obsolete product(s) - obsolete product(s)
package mechanical data STLV3243EB 12/16 6 package mechanical data 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. obsolete product(s) - obsolete product(s)
STLV3243EB package mechanical data 13/16 dim. mm. mil s . min. typ. max. min. typ. max. a0. 83 0. 9 5 3 2.7 3 7.4 a1 0.24 9 .4 a2 0.65 25.6 b 0.25 0. 3 00. 3 5 9 . 8 11. 8 1 3 . 8 d 3 . 9 7 4.17 156. 3 164.2 d1 2.5 98 .4 e 2.47 2.67 9 7.2 105.1 e1 2 7 8 .7 e 0.45 0.55 17.7 21.7 f0.2 3 0. 3 4 9 .1 1 3 .4 f1 0. 8 00. 9 1 3 1.5 3 1. 8 flip-chip2 8 mechanical data 7 38 51 99 /c obsolete product(s) - obsolete product(s)
package mechanical data STLV3243EB 14/16 dim. mm. inch. min. typ. max. min. typ. max. a 33 0 12. 99 2 c 12. 8 1 3 .2 0.504 0.51 9 d 20.2 0.7 9 5 n60 2. 3 62 t1 8 .4 0. 88 2 ao 2.6 2. 8 0.102 0.110 bo 4.1 4. 3 0.161 0.16 9 ko 1.1 1. 3 0.04 3 0.051 po 3 . 9 4.1 0.15 3 0.161 p 3 . 9 4.1 0.15 3 0.161 tape & reel flip-chip2 8 mechanical data obsolete product(s) - obsolete product(s)
STLV3243EB revision history 15/16 7 revision history table 15. document revision history date revision changes 02-may-2005 2 removed: packages sop, ssop and tssop. 21-jan-2009 3 modified table 1 on page 1 . obsolete product(s) - obsolete product(s)
STLV3243EB 16/16 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by an authorized st representative, st products are not recommended, authorized or warranted for use in milita ry, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2009 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com obsolete product(s) - obsolete product(s)

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