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M4Z28-BR00SH M4Z32-BR00SH
ZEROPOWER(R) SNAPHAT(R) (Battery)
FEATURES SUMMARY s PROVIDES BATTERY BACKUP POWER FOR NON-VOLATILE ZEROPOWER and SUPERVISOR DEVICES IN THE 28-PIN SNAPHAT SOIC PACKAGE
s
Figure 1. SNAPHAT Top Package
REMOVABLE BATTERY AVOIDS HEAT ASSOCIATED WITH SURFACE-MOUNT PROCESS SNAPS DIRECTLY ONTO SURFACEMOUNTED SNAPHAT SOIC CHOICE OF BATTERY CAPACITIES - M4Z28-BR00SH = 48mAh - M4Z32-BR00SH = 120mAh
SNAPHAT (SH) Battery
s
s
s
KEYED INSERTION TO INSURE PROPER ASSEMBLY REMOVABLE FOR REPLACEMENT and PROPER DISPOSAL AVAILABLE IN TUBES OR TAPE & REEL
s
s
January 2002
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TABLE OF CONTENTS SUMMARY DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Logic Diagram (Figure 2.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Signal Names (Table 1.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 MAXIMUM RATING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Absolute Maximum Ratings (Table 2.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 DC AND AC PARAMETERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Operating and AC Measurement Conditions (Table 3.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 MECHANICAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 SNAPHAT Insertion/Extraction Forces (Figure 3.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Battery Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 UL Recognition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Battery Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 General Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Battery Discharge Rates (Figure 4.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 DIP Extractor Tool (Figure 5.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 PART NUMBERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 PACKAGE MECHANICAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 REVISION HISTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
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SUMMARY DESCRIPTION The M4ZXX-BR00SH SNAPHAT(R) top is a detachable lithium power source for ST's nonvolatile ZEROPOWER (R) surface-mount SOIC (MH) 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 process.
Figure 2. Logic Diagram
Table 1. Signal Names
VBAT- VBAT+ Negative Voltage Positive Voltage
SNAPHAT
VBAT-
VBAT+
AI02525
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MAXIMUM RATING 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 Table 2. Absolute Maximum Ratings
Symbol TA TSTG Parameter Ambient Operating Temperature Storage Temperature (VCC Off, Oscillator Off) Value -40 to 85 -40 to 85 Unit C C
not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents.
CAUTION: Do NOT wave solder SOIC to avoid damaging SNAPHAT sockets.
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 Measure-
ment 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 Nominal Battery Voltage (VCC) Nominal Battery Capacity Battery Chemistry M4Z28-BR00SH 2.8 48 Li(CF) M4Z32-BR00SH 2.8 120 Li(CF) Unit V mAh
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M4Z28-BR00SH, M4Z32-BR00SH
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(R) 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 Figure 3. SNAPHAT Insertion/Extraction Forces
20
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 3 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 three or four extractions, though, 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.
7.5
5
Average Insertion Force Average Extraction Force
Force (pounds)
12.5
10
7.5
5
2.5 0 1 2 3 4 5 6 7 8 9 10
Number of Extractions
AI02526
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Battery Characteristics Figure 4, page 7 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). UL Recognition The M4ZXX-BR00SH has been recognized by Underwriters Laboratories under their Component Recognition Program and carries U.L. File Number E89556. Battery Life For information on Data Retention Life and Battery Storage Life, please refer to the Application Note AN1012. 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(R), battery damage and/or die cracks could be induced. As Figure 3, page 5 specifies, only an average of 20 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 in employed, it is very important that it be calibrated such that it cannot exceed this limit. To remove the SNAPHAT(R) top for replacement, a DIP/IC extractor tool should be used (see Figure 5). 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. For battery disposal information, see on the web at www.rayovac.com.
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Figure 4. Battery Discharge Rates
LOAD CHARACTERISTICS Temp: 20C
3.5 3.0 Voltage (V) 2.5 2.0 1.5 1.0 0
BR1225 15k 30k 100k
200 400 600 800 1000 1200 1400 1600 1800 2000 Duration (hrs.) (A)
3.5 3.0 Voltage (V) 2.5 2.0 1.5 1.0 0
LOAD CHARACTERISTICS
Temp: 20C
BR1632 15k 30k 50k 100k
1000
2000
3000
4000
5000
6000
Duration (hrs.) (B)
AI02519
Figure 5. DIP Extractor Tool
AI02527
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PART NUMBERING Table 4. Ordering Information Scheme
Example: M4Z 28-BR00 SH 1 TR
Device Type M4Z
Battery Voltage and Capacity 28-BR00 = BR1225, 3V, 48mAh 32-BR00 = BR1632, 3V, 120mAh
Package SH = SNAPHAT(R)
Temperature Range 1 = -40 to 85C
Shipping Method blank = Tubes TR = 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.
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PACKAGE MECHANICAL INFORMATION Figure 6. SH - 4-pin SNAPHAT Housing for 48mAh Battery Package Outline
A1
A2 A A3
eA D
B eB
L
E
SHZP-A
Note: Drawing is not to scale.
Table 5. SH - 4-pin SNAPHAT Housing for 48mAh Battery Package Mechanical Data
mm Symb Typ A A1 A2 A3 B D E eA eB L 0.46 21.21 14.22 15.55 3.20 2.03 6.73 6.48 Min Max 9.78 7.24 6.99 0.38 0.56 21.84 14.99 15.95 3.61 2.29 0.018 0.835 0.560 0.612 0.126 0.080 0.265 0.255 Typ Min Max 0.385 0.285 0.275 0.015 0.022 0.860 0.590 0.628 0.142 0.090 inches
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M4Z28-BR00SH, M4Z32-BR00SH
Figure 7. SH - 4-pin SNAPHAT Housing for 120mAh Battery Package Outline
A1
A2 A A3
eA D
B eB
L
E
SHZP-A
Note: Drawing is not to scale.
Table 6. SH - 4-pin SNAPHAT Housing for 120mAh Battery Package Mechanical Data
mm Symb Typ A A1 A2 A3 B D E eA eB L 0.46 21.21 17.27 15.55 3.20 2.03 8.00 7.24 Min Max 10.54 8.51 8.00 0.38 0.56 21.84 18.03 15.95 3.61 2.29 0.018 0.835 0.680 0.612 0.126 0.080 0.315 0.285 Typ Min Max 0.415 0.335 0.315 0.015 0.022 0.860 0.710 0.628 0.142 0.090 inches
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REVISION HISTORY Table 7. Document Revision History
Date November 1999 05/29/01 06/04/01 07/10/01 01/21/02 First Issue Reformatted Basic textual changes from reformatting activity Remove references to "Crystal;" change references to "SUPERVISOR" from Controller; clarify temperature characteristics Change to include Crystal Accuracy (Table 3); add text for SNAPHAT insertion force tolerance and battery characteristics note Revision Details
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Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is registered trademark of STMicroelectronics All other names are the property of their respective owners. (c) 2002 STMicroelectronics - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. www.st.com
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