View ST3222ECTR_6798660.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

august 2007 rev 7 1/15 15 st3222eb st3222ec 15 kv esd protected, 3 to 5.5 v low power, up to 250 kbps, rs-232 drivers and receivers features 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 250kbps minimum guarantee data rate 6 v/s minimum guarantee slew rate meet eia/tia-232 specification down to 3 v available in sso p20 and tssop20 description the st3222e is a 3 v powered eia/tia-232 and v.28/v.24 communications interface 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. st3222e 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 0.1 mf external capacitors for operation form 3 v supply. the device has two receivers and two drivers. the st3222e features a 1 ma shutdown mode that reduces power consumption and extends battery life in portable systems. its receivers can remain acti ve in shutdown mode, allowing external devices such as modems to be monitored using only 1 ma supply current. the device is guaranteed to run at data rates of 250 kbps while maintaining rs-232 output levels. typical applications are notebook, sub-notebook and palmtop computers, battery powered equipment, hand-held equipment, peripherals and printers. ssop tssop table 1. device summary order codes temperature range package packaging st3222ecpr 0 to 70 c ssop20 (tape & reel) 1350 parts per reel st3222ebpr -40 to 85 c ssop20 (tape & reel) 1350 parts per reel ST3222ECTR 0 to 70 c tssop20 (tape & reel) 2500 parts per reel st3222ebtr -40 to 85 c tssop20 (tape & reel) 2500 parts per reel www.st.com
contents st3222e 2/15 contents 1 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
st3222e pin configuration 3/15 1 pin configuration figure 1. pin connection table 2. pin description pin n symbol name and function 1en receiver enable control. drive low for normal operation. drive high to force the receivers outputs (r_out) into a high-impedance state. 2c 1 + positive terminal for the first charge pump capacitor 3 v+ 5.5v generated by the charge pump. 4c 1 - negative terminal for the first charge pump capacitor 5c 2 + positive terminal for the second charge pump capacitor 6c 2 - negative terminal for the second charge pump capacitor 7 v- -5.5v generated by the charge pump. 8t2 out second transmitter output voltage 9r2 in second receiver input voltage 10 r2 out second receiver output voltage 11 nc not connected 12 t2 in second transmitter input voltage 13 t1 in first transmitter input voltage 14 nc not connected 15 r1 out first receiver output voltage 16 r1 in first receiver input voltage 17 t1 out first transmitter output voltage 18 gnd ground 19 v cc supply voltage 20 shdn active low shutdown control input. driv e low to shut-down transmitter and charge pump
absolute maximu m ratings st3222e 4/15 2 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 implied. v+ and v- can have a maximum magnitude of +7 v, but their absolute addition can not exceed 13 v. table 3. 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 t in transmitter input voltage range -0.3 to 6 v shdn transmitter input voltage range -0.3 to 6 v r in receiver input voltage range 25 v t out transmitter output voltage range 13.2 v r out receiver output voltage range -0.3 to (v cc + 0.3) v t short transmitter output short to gnd time continuous table 4. shutdown and enable control truth table shdn en t-out r-out 0 0 high z active 0 1 high z high z 1 0 active active 1 1 active high z table 5. 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 8kv
st3222e electrical characteristics 5/15 3 electrical characteristics note: 1 transmitter input hysteresis is typically 250 mv table 6. electrical characteristics (c 1 - c 4 = 0.1 f, v cc = 3 v to 5.5 v, t a = -40 to 85c, unless otherwise specified. typical values are referred to t a = 25c) symbol parameter test conditions min. typ. max. unit i supply v cc power supply current no load, shdn = v cc , t a = 25c 0.3 1 ma i shdn shutdown supply current no load, shdn = v cc , t a = 25c 1 10 a table 7. logic input electrical characteristics (c 1 - c 4 = 0.1f, v cc = 3 v to 5.5 v, t a = -40 to 85c, unless otherwise specified. typical values are referred to t a = 25c) symbol parameter test conditions min. typ. max. unit v il input logic threshold low t-in, en , shdn ( note: 1 )0.8v v ih input logic threshold high v cc = 3.3 v 2 v v cc = 5 v 2.4 v hys transmitter input hysteresis 0.25 v i il input leakage current t-in, en , shdn 0.01 1a table 8. transmitter electrical characteristics (c 1 - c 4 = 0.1f v cc = 3 v to 5.5 v, t a = -40 to 85c, unless otherwise specified. typical values are referred to t a = 25c) symbol parameter test conditions min. typ. max. unit v tout output voltage swing all transmitter outputs are loaded with 3 k to gnd 5 5.4 v r tout transmitter output resistance v cc = v+ = v- = 0 v, v out = 2 v 300 10m i tsc output short circuit current 60 ma i tol output leakage current v cc = 0 or 3 v to 3.6 v, v out = 12 v transmitters disable 25 a
electrical characteristics st3222e 6/15 table 9. receiver electrical characteristics (c 1 - c 4 = 0.1f, v cc = 3 v to 5.5 v, t a = -40 to 85c, unless otherwise specified. typica l values are referred to t a = 25c) symbol parameter test conditions min. typ. max. unit i ol output leakage current r-out, en = v cc , receiver disabled 0.05 10 a v rin receiver input voltage operating range -25 25 v v ril input threshold low t a = 25c, v cc = 3.3 v 0.6 1.2 v t a = 25c, v cc = 5 v 0.8 1.5 v rih input threshold high t a = 25c, v cc = 3.3 v 1.5 2.4 v t a = 25c, v cc = 5 v 1.8 2.4 v rihys input hysteresis 0.5 v r rin input resistance t a = 25c 3 5 7 k v rol output voltage low i out = 1.6 ma 0.4 v v roh output voltage high i out = -1 ma v cc -0.6 v cc - 0.1 v table 10. timing characteristics (c 1 - c 4 = 0.1f, v cc = 3 v to 5.5 v, t a = -40 to 85c, unless otherwise specified. typical values are referred to t a = 25c) symbol parameter test conditions min. typ. max. unit d r data transfer rate r l = 3 k , c l2 = 1000 pf one transmitter switching 250 kbps t phlr t plhr propagation delay input to output r xin to r xout , c l = 150 pf 0.15 s |t phlt - t thl | transmitter propagation delay difference (1) 200 ns t oer receiver output enable time normal operation 50 ns t odr receiver output disable time normal operation 50 ns |t phlr - t thr | receiver propagation delay difference 50 ns s rt transition slew rate t a = 25c r l = 3 k to 7 k v cc = 3.3 v measured from +3v to -3v or -3v to +3v c l = 150 pf to 1000 pf 630v/s t a = 25c r l = 3 k to 7 k v cc = 3.3 v measured from +3v to -3v or -3v to +3v c l = 150 pf to 2500 pf 430v/s 1. transmitter skew is measured at the transmitter ze ro cross points
st3222e application circuits 7/15 4 application circuits figure 2. application schematic table 11. capacitance value (f) v cc 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 0.33 3.0 to 5.5 0.22 0.1 0.1 0.1 0.22
typical performance characteristics st3222e 8/15 5 typical performance characteristics (unless otherwise specified t j = 25c) figure 3. output current vs output high voltage figure 4. output current vs output high voltage figure 5. output current vs output low voltage figure 6. output current vs output low voltage figure 7. voltage transfer characteristics for transmitter inputs figure 8. receiver input resistance
st3222e package mechanical data 9/15 6 package mechanical data in order to meet environmental requirements, st offers these devices in ecopack? packages. these packages have a lead-free second level interconnect. the category of second level interconnect is marked on the package and on the inner box label, in compliance with jedec standard jesd97. the maximum ratings related to soldering conditions are also marked on the inner box label. ecopack is an st trademark. ecopack specifications are available at: www.st.com
package mechanical data st3222e 10/15 dim. mm. inch. min. typ. max. min. typ. max. a 2 0.07 9 a1 0.05 0.002 a2 1.65 1.75 1. 8 5 0.065 0.06 9 0.07 3 b 0.22 0. 38 0.00 9 0.015 c0.0 9 0.25 0.004 0.010 d6. 9 7.2 7.5 0.272 0.2 83 0.2 9 5 e 7.4 7. 88 .2 0.2 9 10. 3 07 0. 3 2 3 e1 5 5. 3 5.6 0.1 9 7 0.20 9 0.220 e 0.65 b s c 0.0256 b s c k04 8 04 8 l 0.55 0.75 0. 9 5 0.022 0.0 3 0 0.0 3 7 ss op20 mechanical data c e b a2 a e1 d 1 pin 1 identification a1 l k e 00614 3 6c
st3222e package mechanical data 11/15 dim. mm. inch. min. typ. max. min. typ. max. a 1.2 0.047 a1 0.05 0.15 0.002 0.004 0.006 a2 0. 8 1 1.05 0.0 3 1 0.0 39 0.041 b 0.1 9 0. 3 0 0.007 0.012 c0.0 9 0.20 0.004 0.007 9 d 6.4 6.5 6.6 0.252 0.256 0.260 e 6.2 6.4 6.6 0.244 0.252 0.260 e1 4. 3 4.4 4.4 8 0.16 9 0.17 3 0.176 e 0.65 b s c 0.0256 b s c k0 8 0 8 l 0.45 0.60 0.75 0.01 8 0.024 0.0 3 0 t ss op20 mechanical data c e b a2 a e1 d 1 pin 1 identification a1 l k e 00 8 7225c
package mechanical data st3222e 12/15 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 t 22.4 0. 88 2 ao 8 .4 8 .6 0. 33 10. 339 bo 7.7 7. 9 0. 3 0 3 0. 3 11 ko 2. 93 .1 0.114 0.122 po 3 . 9 4.1 0.15 3 0.161 p 11. 9 12.1 0.46 8 0.476 tape & reel ss op20 mechanical data
st3222e package mechanical data 13/15 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 t 22.4 0. 88 2 ao 6. 8 7 0.26 8 0.276 bo 6. 9 7.1 0.272 0.2 8 0 ko 1.7 1. 9 0.067 0.075 po 3 . 9 4.1 0.15 3 0.161 p 11. 9 12.1 0.46 8 0.476 tape & reel t ss op20 mechanical data
revision history st3222e 14/15 7 revision history table 12. revision history date revision changes 22-mar-2006 6 order codes updated. 23-aug-2007 7 added table 1. in cover page.
st3222e 15/15 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. ? 2007 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

▲Up To Search▲

Price & Availability of ST3222ECTR

	To Download ST3222ECTR Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .