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february 2009 rev 3 1/16 1 m4z28-br00sh M4Z32-BR00SH zeropower ? snaphat ? (battery) features provides battery backup power for non-volatile zeropower ? and supervisor devices in the 28-pin snaphat ? soic package removable battery avoids heat associated with surface-mount process snaps directly onto surface-mounted snaphat ? soic choice of battery capacities ? m4z28-br00sh = 48 mah ? M4Z32-BR00SH = 120 mah keyed insertion to in sure proper assembly removable for replacement and proper disposal pb-free package available in tubes or tape & reel snaphat ? (sh) battery www.st.com
contents m4z28-br00sh, M4Z32-BR00SH 2/16 contents 1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 mechanical information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 battery characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 ul recognition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3 battery life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.4 general notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4 dc and ac parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6 part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 7 environmental information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 8 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
m4z28-br00sh, M4Z32-BR00SH list of tables 3/16 list of tables table 1. signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 table 2. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 table 3. operating and ac measurement conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 table 4. sh ? 4-pin snaphat ? housing for 48 mah battery package mech. data . . . . . . . . . . . . . 11 table 5. sh ? 4-pin snaphat ? housing for 120 mah battery package mech. data . . . . . . . . . . . . 12 table 6. ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 table 7. document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
list of figures m4z28-br00sh, M4Z32-BR00SH 4/16 list of figures figure 1. logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 figure 2. snaphat ? insertion/extraction forces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 figure 3. battery discharge rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 4. dip extractor tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 5. sh ? 4-pin snaphat ? housing for 48 mah battery package outline . . . . . . . . . . . . . . . . 11 figure 6. sh ? 4-pin snaphat ? housing for 120 mah battery package outline . . . . . . . . . . . . . . . 12 figure 7. recycling symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
m4z28-br00sh, M4Z32-BR00SH description 5/16 1 description the m4zxx-br00sh snaphat ? top is a detachable lithium power source for st?s non- volatile zeropower ? surface-mount soic (mh) package (28-pin). the snaphat top contains a lithium battery a nd is designed to be ?snapped on? after the soic is surface mounted on the pc board. the two-piece solution prevents the battery from being exposed to the high temperatures of the surface mount process. figure 1. logic diagram table 1. signal names v bat? negative voltage v bat+ positive voltage ai02525 s naphat v bat? v bat+
mechanical information m4z28-br00sh, M4Z32-BR00SH 6/16 2 mechanical information electrical connection to the soic is made thro ugh two pins that connect to the press fitted sockets at one end of the soic. critical contact points between the pins and sockets are gold-plated to resist oxidation. internally, each socket contains six independent contact fingers to form redundant connections between the two components. these sockets were designed to provide high point contact force to provide the lowest possible contact resistance. the snaphat ? top also incorporates four molded-in retaining clips which hold onto the ends of the soic insuring mechanical and electrical connection even under severe mechanical shock and vibration. the combined soic and snaphat assembly can sustain shock levels in excess of 100 g without separating. this package also passes variable frequency testing in accordance with mil-std-883, method 2007.2, condition a. figure 2 illustrates the affect of re peated insertion and extraction of the snaphat top to the soic. the force required to extract the snaphat, and then to re-insert it, reduces each time. after four or five extractions, the reduction starts to become unnoticeable and the force required remains at a fairly constant figure. typically, tho ugh, the snaphat will only need to be extracted and re-inserted once in its lifetime. figure 2. snaphat ? insertion/extraction forces 0 2.5 5 7.5 10 12.5 15 12345678910 number of extractions force (pounds) average insertion average extraction ai02526
m4z28-br00sh, M4Z32-BR00SH mechanical information 7/16 2.1 battery characteristics figure 3 on page 8 illustrates the lithium co in cell discharge rate for a given load. this demonstrates the characteristically flat voltage level supplied by the battery until very near the end of its life. these discharge levels have been greatly accelerated in comparison to the normal, actual usage. note: these batteries contain no mercury (hg), cadmium (cd), or lead (pb). 2.2 ul recognition the m4zxx-br00sh has been recognized by underwriters laboratories under their component recognition program and carries u.l. file number e89556. 2.3 battery life for information on data retention life and battery storage life, please refer to the application note an1012. 2.4 general notes st has conducted experiments using a manual press which determined that if approximately 60 pounds of force is applied to the top of the snaphat ? , battery damage and/or die cracks could be induced. as figure 2 on page 6 specifies, only an average of less than 13 force-pounds is required for proper insertion. we recommend that no more than 40 pounds of force be applied during snaphat ? insertion. if a manual press is employed, it is very important that it be calibrated such that it cannot exceed this limit. to remove the snaphat ? top for replacement, a dip/ic extr actor tool should be used (see figure 4). the snaphat top should be grabbed by the narrow end to avoid bending the pins. caution: to avoid draining battery do not plac e snaphat pins into conductive foam. caution: to avoid damaging snaphat sockets do not wave solder soic.
mechanical information m4z28-br00sh, M4Z32-BR00SH 8/16 figure 3. battery discharge rates figure 4. dip extractor tool ai02519 0 1.0 1.5 2.0 2.5 3.0 3.5 voltage (v) load characteristics temp: 20c 1000 2000 3000 4000 5000 6000 duration (hrs.) (b) 15k 30k 50k 100k 0 1.0 1.5 2.0 2.5 3.0 3.5 voltage (v) load characteristics temp: 20c 200 400 600 1200 1600 1800 duration (hrs.) (a) 100k 800 1000 1400 2000 15k 30k br1225 br1632 ai02527
m4z28-br00sh, M4Z32-BR00SH maximum ratings 9/16 3 maximum ratings stressing the device above the rating listed in the absolute maximum ratings table may cause permanent damage to the device. these are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not imp lied. exposure to absolute ma ximum rating conditions for extended periods may affect device reliability. refer also to the stmicroelectronics sure program and other relevant quality documents. table 2. absolute maximum ratings caution: do not wave solder soic to avoid damaging snaphat ? sockets. symbol parameter value unit t a ambient operating tem perature ?40 to 85 c t stg storage temperature (v cc off, oscillator off) ?40 to 85 c
dc and ac parameters m4z28-br00sh, M4Z32-BR00SH 10/16 4 dc and ac parameters this section summarizes the operating and measurement conditions, as well as the dc and ac characteristics of the device. the parameters in the following dc and ac characteristic tables are derived from tests performed under the measurement conditions listed in the relevant tables. designers should check that the operating conditions in their projects match the measurement conditions when using the quoted parameters. table 3. operating and ac measurement conditions parameter m4z28-br00sh M4Z32-BR00SH unit nominal battery voltage (v cc )2.82.8v nominal battery capacity 48 120 mah battery chemistry li(cf) li(cf)
m4z28-br00sh, M4Z32-BR00SH package mechanical data 11/16 5 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. figure 5. sh ? 4-pin snaphat ? housing for 48 mah battery package outline note: drawing is not to scale. table 4. sh ? 4-pin snaphat ? housing for 48 mah battery package mech. data shzp-a a1 a d e ea eb a2 b l a3 symbol mm inches typ min max typ min max a 9.78 0.385 a1 6.73 7.24 0.265 0.285 a2 6.48 6.99 0.255 0.275 a3 0.38 0.015 b 0.46 0.56 0.018 0.022 d 21.21 21.84 0.835 0.860 e 14.22 14.99 0.560 0.590 ea 15.55 15.95 0.612 0.628 eb 3.20 3.61 0.126 0.142 l 2.03 2.29 0.080 0.090
package mechanical data m4z28-br00sh, M4Z32-BR00SH 12/16 figure 6. sh ? 4-pin snaphat ? housing for 120 mah battery package outline note: drawing is not to scale. table 5. sh ? 4-pin snaphat ? housing for 120 mah battery package mech. data shzp-a a1 a d e ea eb a2 b l a3 symbol mm inches typ min max typ min max a 10.54 0.415 a1 8.00 8.51 0.315 0.335 a2 7.24 8.00 0.285 0.315 a3 0.38 0.015 b 0.46 0.56 0.018 0.022 d 21.21 21.84 0.835 0.860 e 17.27 18.03 0.680 0.710 ea 15.55 15.95 0.612 0.628 eb 3.20 3.61 0.126 0.142 l 2.03 2.29 0.080 0.090
m4z28-br00sh, M4Z32-BR00SH part numbering 13/16 6 part numbering table 6. ordering information scheme for a list of available options (e.g., speed, package) or for further information on any aspect of this device, please contact the st sales office nearest to you. example: m4z 28-br00 sh 1 tr device type m4z battery voltage and capacity 28-br00 = br1225, 3 v, 48 mah 32-br00 = br1632, 3 v, 120 mah package sh = snaphat ? temperature range 1 = ?40 to 85c shipping method blank = ecopack ? package, tubes tr = ecopack ? package, tape & reel
environmental information m4z28-br00sh, M4Z32-BR00SH 14/16 7 environmental information figure 7. recycling symbols this product contains a non-rechargeable lithi um (lithium carbon monofluoride chemistry) button cell battery fully encapsulated in the final product. recycle or dispose of batteries in accordance with the battery manufacturer's instructions and local/national disposal and recycling regulations. please refer to the following web site address for additional information regarding compliance statements and waste recycling. go to www.st.com/nvram , then select "lithium battery recycling" from "related topics".
m4z28-br00sh, M4Z32-BR00SH revision history 15/16 8 revision history table 7. document revision history date revision changes nov-1999 1 first issue 29-may-2001 2 reformatted 04-jun-2001 2.1 basic textual changes from reformatting activity 10-jul-2001 2.2 remove references to ?crystal;? change references to ?supervisor? from controller; clarify temperature characteristics 21-jan-2002 2.3 change to include crystal accuracy ( ta b l e 3 . ); add text for snaphat ? insertion force tolerance and battery characteristics note 20-aug-2002 2.4 update insertion/extraction forces ( figure 2. ) 14-mar-2003 2.5 add pb-free note on page 1 26-feb-2009 3 reformatted document; updated section 5: package mechanical data , section 2.4: general notes , and ta b l e 6 ; added section 7: environmental information .
m4z28-br00sh, M4Z32-BR00SH 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

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