IC SNAPHAT BATT/CRYSTAL 28-SOIC

M4T32-BR12SH1

Manufacturer Part NumberM4T32-BR12SH1
DescriptionIC SNAPHAT BATT/CRYSTAL 28-SOIC
ManufacturerSTMicroelectronics
M4T32-BR12SH1 datasheets
MSDS Material Safety Datasheet
 


Specifications of M4T32-BR12SH1

Battery TypeLi-(CF)Operating Supply Voltage0 V to 2.8 V
Maximum Operating Temperature+ 70 CMinimum Operating Temperature0 C
Package / CaseSOIC-28Mounting StyleSMD/SMT
Capacity120 mAhChemical SystemLithium Poly-Carbonmonoflouride
Primary TypePackSizeCylindrical
StandardsUL RecognizedTemperature, Operating0 to +75 °C
Temperature, Operating, Maximum70 °CTemperature, Operating, Minimum0 °C
TerminationSnap-OnVoltage, Battery3 V
Voltage, Rating3 VSupply Voltage Range2.8V
Battery Ic Case StyleSOICNo. Of Pins4
Operating Temperature Range0°C To +70°CCrystal TerminalsSnap On
Load Capacitance12.5pFRohs CompliantYes
Crystal Mounting TypeSMDLead Free Status / RoHS StatusLead free / RoHS Compliant
Other names497-3687-5  
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TIMEKEEPER
Features
Provides battery backup power for non-volatile
®
TIMEKEEPER
and supervisor devices in the
®
28- or 44-pin SNAPHAT
SOIC package
Removable battery avoids heat associated with
surface mount process
Snaps directly onto surface-mounted
SNAPHAT SOIC
Choice of battery capacities:
– M4T28-BR12SH = 48 mAh
– M4T32-BR12SH = 120 mAh
Keyed insertion to ensure proper assembly
Removable for replacement and proper
disposal
Pb-free package
®
Available in Ecopack
packages, tubes or tape
& reel
November 2008
M4T28-BR12SH
M4T32-BR12SH
®
®
SNAPHAT
(battery and crystal)
SNAPHAT (SH)
battery/crystal
Rev 3
1/16
www.st.com
1

M4T32-BR12SH1 Summary of contents

  • Page 1

    ... Removable battery avoids heat associated with surface mount process ■ Snaps directly onto surface-mounted SNAPHAT SOIC ■ Choice of battery capacities: – M4T28-BR12SH = 48 mAh – M4T32-BR12SH = 120 mAh ■ Keyed insertion to ensure proper assembly ■ Removable for replacement and proper disposal ■ Pb-free package ® ...

  • Page 2

    ... Contents Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Mechanical information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.1 Battery characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.2 UL recognition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.3 Battery life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.4 General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 7 Environmental information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2/16 M4T28-BR12SH, M4T32-BR12SH ...

  • Page 3

    ... M4T28-BR12SH, M4T32-BR12SH List of tables Table 1. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Table 2. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Table 3. Operating and AC measurement conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Table 4. SH – 4-pin SNAPHAT® housing for 48 mAh battery & crystal, package mechanical data 11 Table 5. SH – 4-pin SNAPHAT® housing for 120 mAh battery & crystal, package mechanical data ...

  • Page 4

    ... Battery discharge rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 4. DIP extractor tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 5. SH – 4-pin SNAPHAT® housing for 48 mAh battery & crystal, package outline . . . . . . . . 11 Figure 6. SH – 4-pin SNAPHAT® housing for 120 mAh battery & crystal, package outline . . . . . . . 12 Figure 7. Recycling symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 4/16 M4T28-BR12SH, M4T32-BR12SH ...

  • Page 5

    ... M4T28-BR12SH, M4T32-BR12SH 1 Description The M4TXX-BR12SH SNAPHAT volatile TIMEKEEPER The SNAPHAT top contains both the battery and crystal and is designed to be “snapped on” after the SOIC is surface mounted on the PC board. Thus the two piece solution prevents the battery and crystal from being exposed to the high temperatures of the surface mount process ...

  • Page 6

    ... Table 2. Absolute maximum ratings Symbol T Ambient operating temperature A T STG 1. Only the M4T32-BR12SH is available in industrial temperature (grade 6). Caution: Do NOT wave solder SOIC to avoid damaging SNAPHAT sockets. 6/16 Parameter Storage temperature (V off, oscillator off) CC M4T28-BR12SH, M4T32-BR12SH ...

  • Page 7

    ... M4T28-BR12SH, M4T32-BR12SH 3 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 ...

  • Page 8

    ... After four or five extractions, the reduction starts to become unnoticeable and the force required remains at a fairly constant figure. Typically, though, the SNAPHAT will only need to be extracted and re-inserted once in its lifetime. ® Figure 2. SNAPHAT insertion/extraction forces 15 12.5 10 7 8/16 Average Insertion Average Extraction Number of Extractions M4T28-BR12SH, M4T32-BR12SH AI02526 ...

  • Page 9

    ... M4T28-BR12SH, M4T32-BR12SH 4.1 Battery characteristics Figure 3 on page 10 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). ...

  • Page 10

    ... Duration (hrs.) (A) LOAD CHARACTERISTICS 3.5 3.0 2.5 2.0 15kΩ 30kΩ 50kΩ 1.5 1.0 0 1000 2000 3000 Duration (hrs.) (B) M4T28-BR12SH, M4T32-BR12SH Temp: 20˚C BR1225 100kΩ 1400 1600 1800 2000 Temp: 20˚C BR1632 100kΩ 4000 5000 6000 AI02519 AI02527 ...

  • Page 11

    ... M4T28-BR12SH, M4T32-BR12SH 5 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 ...

  • Page 12

    ... Typ Min Max 10.54 8.00 8.51 7.24 8.00 0.38 0.46 0.56 21.21 21.84 17.27 18.03 15.55 15.95 3.20 3.61 2.03 2.29 M4T28-BR12SH, M4T32-BR12SH SHTK-A inches Typ Min 0.315 0.285 0.018 0.835 0.680 0.612 0.126 0.080 A2 Max 0.415 0.335 0.315 ...

  • Page 13

    ... Battery voltage and capacity 28-BR12 = BR1225 mAh 32-BR12 = BR1632 120 mAh Package ® SNAPHAT Temperature range 70° –40 to 85°C (M4T32-BR12SH only) Shipping method ® blank = Ecopack package, tubes ® Ecopack package, tape & reel 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 ...

  • Page 14

    ... 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 www.st.com/nvram, then select "Lithium Battery Recycling" from "Related Topics". 14/16 M4T28-BR12SH, M4T32-BR12SH ...

  • Page 15

    ... M4T28-BR12SH, M4T32-BR12SH 8 Revision history Table 7. Document revision history Date Revision Nov-1999 01-Mar-2001 04-Jun-2001 10-Jul-2001 21-Jan-2002 20-Aug-2002 14-Mar-2003 20-Nov-2008 1 First issue 2 Reformatted 2.1 Basic textual changes from reformatting activity Changes references to “supervisor” from “controller;” clarify temperature 2.2 characteristics Change to include crystal accuracy 2 ...

  • Page 16

    ... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 16/16 Please Read Carefully: © 2008 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com M4T28-BR12SH, M4T32-BR12SH ...