M4Z28-BR00SH M4Z32-BR00SH ® ® ZEROPOWER SNAPHAT battery Datasheet - production data Description The M4Zxx-BR00SH SNAPHAT® top is a detachable lithium power source for ST’s non- volatile ZEROPOWER® surface-mount SOIC package (28-pin). The SNAPHAT top contains a lithium battery and 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 SNAPHAT® battery process. Features  Provides battery backup power for non-volatile ZEROPOWER® SRAM 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 insure proper assembly  Removable for replacement and proper disposal  Pb-free package  Available in ECOPACK® packages, tubes February 2014 DocID013124 Rev 4 1/16 This is information on a product in full production. www.st.com

Contents M4Z28-BR00SH, M4Z32-BR00SH Contents 1 Device overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 2/16 DocID013124 Rev 4

M4Z28-BR00SH, M4Z32-BR00SH List of tables 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 DocID013124 Rev 4 3/16 16

List of figures M4Z28-BR00SH, M4Z32-BR00SH 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 4/16 DocID013124 Rev 4

M4Z28-BR00SH, M4Z32-BR00SH Device overview 1 Device overview Figure 1. Logic diagram SNAPHAT VBAT– VBAT+ AI02525 Table 1. Signal names V Negative voltage BAT– V Positive voltage BAT+ DocID013124 Rev 4 5/16 16

Mechanical information M4Z28-BR00SH, M4Z32-BR00SH 2 Mechanical information Electrical connection to the SOIC is made through 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 ensuring 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 repeated 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, 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 Average Insertion Average Extraction 10 s) d n u o p 7.5 e ( c or F 5 2.5 0 1 2 3 4 5 6 7 8 9 10 Number of Extractions AI02526 6/16 DocID013124 Rev 4

M4Z28-BR00SH, M4Z32-BR00SH Mechanical information 2.1 Battery characteristics Figure 3 on page 8 illustrates the lithium coin 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 extractor 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 place SNAPHAT pins into conductive foam. Caution: To avoid damaging SNAPHAT sockets do NOT wave solder SOIC. DocID013124 Rev 4 7/16 16

Mechanical information M4Z28-BR00SH, M4Z32-BR00SH Figure 3. Battery discharge rates LOAD CHARACTERISTICS Temp: 20°C 3.5 3.0 V) ge ( 2.5 BR1225 a Volt 2.0 15kΩ 30kΩ 100kΩ 1.5 1.0 0 200 400 600 800 100012001400160018002000 Duration (hrs.) (A) LOAD CHARACTERISTICS Temp: 20°C 3.5 3.0 V) e ( 2.5 BR1632 g a Volt 2.0 15kΩ 30kΩ 50kΩ 100kΩ 1.5 1.0 0 1000 2000 3000 4000 5000 6000 Duration (hrs.) (B) AI02519 Figure 4. DIP extractor tool AI02527 8/16 DocID013124 Rev 4

M4Z28-BR00SH, M4Z32-BR00SH Maximum ratings 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 implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 2. Absolute maximum ratings Symbol Parameter Value Unit T Ambient operating temperature –40 to 85 °C A T Storage temperature (V off, oscillator off) –40 to 85 °C STG CC Caution: Do NOT wave solder SOIC to avoid damaging SNAPHAT® sockets. DocID013124 Rev 4 9/16 16

DC and AC parameters M4Z28-BR00SH, M4Z32-BR00SH 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 ) 2.8 2.8 V CC Nominal battery capacity 48 120 mAh Battery chemistry Li(CF) Li(CF) 10/16 DocID013124 Rev 4

M4Z28-BR00SH, M4Z32-BR00SH Package mechanical data 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 1011860_J Note: Drawing is not to scale. Table 4. SH – 4-pin SNAPHAT® housing for 48 mAh battery package mech. data mm inches Symbol Typ Min Max Typ Min Max A 9.779 0.385 A1 7.239 7.747 0.285 0.305 A2 6.477 6.985 0.255 0.275 A3 0.000 0.381 0.000 0.015 B 0.457 0.559 0.018 0.022 D 21.082 21.844 0.830 0.860 E 14.224 14.986 0.560 0.590 eA 15.545 15.951 0.612 0.628 eB 3.200 3.607 0.126 0.142 L 2.032 2.286 0.080 0.090 T 6° 8° 6° 8° DocID013124 Rev 4 11/16 16

Package mechanical data M4Z28-BR00SH, M4Z32-BR00SH Figure 6. SH – 4-pin SNAPHAT® housing for 120 mAh battery package outline 7027195_H Note: Drawing is not to scale. Table 5. SH – 4-pin SNAPHAT® housing for 120 mAh battery package mech. data mm inches Symbol Typ Min Max Typ Min Max A 10.541 N/A 0.415 A1 8.001 8.509 0.315 0.335 A2 7.239 7.747 0.285 0.305 A3 0.000 0.381 0.000 0.015 B 0.457 0.559 0.018 0.022 D 21.082 21.844 0.830 0.860 E 17.272 18.034 0.680 0.710 eA 15.545 15.951 0.612 0.628 eB 3.200 3.607 0.126 0.142 L 2.032 2.286 0.080 0.090 T 6° 8° 6° 8° 12/16 DocID013124 Rev 4

M4Z28-BR00SH, M4Z32-BR00SH Part numbering 6 Part numbering Table 6. Ordering information scheme Example: M4Z 28-BR00 SH 1 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 85°C Shipping method blank = ECOPACK® package, tubes 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. DocID013124 Rev 4 13/16 16

Environmental information M4Z28-BR00SH, M4Z32-BR00SH 7 Environmental information Figure 7. Recycling symbols This product contains a non-rechargeable lithium (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. 14/16 DocID013124 Rev 4

M4Z28-BR00SH, M4Z32-BR00SH Revision history 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 Remove references to “crystal;” change references to “supervisor” from 10-Jul-2001 2.2 controller; clarify temperature characteristics Change to include crystal accuracy (Table 3.); add text for SNAPHAT® 21-Jan-2002 2.3 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 Reformatted document; updated Section 5: Package mechanical data, 26-Feb-2009 3 Section 2.4: General notes, andTable 6; added Section 7: Environmental information. Updated package representation on page 1, Features, Section 5: Package mechanical data and Section 7: Environmental information 20-Feb-2014 4 Removed tape and reel shipping option from Features and Table 6: Ordering information scheme DocID013124 Rev 4 15/16 16

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