Datasheet M4Z32-BR00SH6, M4Z32-BR00SH1, M4Z28-BR00SH1 Datasheet (SGS Thomson Microelectronics)

ZEROPOWER SNAPHAT (Battery)

■ Provides Ba ttery Backup Power for Non -Volatile

ZEROPOWERs and Controllers in the
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

■ Available in Tubes or Tape & Reel

■ For Use with the 28 pin SOIC Version of the

ZEROPOWER Product Families

M4ZXX-BR00SH

SNAPHAT (SH)

Battery

Figure 1. Logic Diagram

DESCRIPTION

The M4Zxx-BR00SH SNAPHAT top is a
detachable lithium power source for ST’s non­volatile Z ER OPOW ER s urface mou n t SO IC (M H)
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. Thus th e two
piece solution prevents the battery from ha ving t o
be exposed to the hi gh temperatures of the sur­face mount process.

SNAPHAT

V

BAT–VBAT+

AI02525

1/7November 1999

M4ZXX-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 SO IC. Critical contact points be­tween the pins a nd 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 t o provide hi gh point c on­tact 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 separat ing. Th is pack age
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 SNAPHA T 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.

BATTERY CHARACTERISTICS

Figure 3 illust rates the lithi um coin cell disc harge
rate for a given load. This demonstrates the char-

Table 1. Description

Parameter Value

Operating
Temperature

Storage
Temperature

Nominal
Battery Voltage

Nominal
Battery Capacity

Battery Chemistry Li(CF)x

1 = 0 to 70 °C
6 = –40 to 85 °C

–40 to 85 °C

2.8 V

48 mAh M4Z28
120 mAh M4Z32

acteristically flat voltage level supplied by t he ba t­tery until very near the end of its life. These
discharge levels have been great ly acc ele rated in
comparison to the normal, actual usage.

UL RECOGNITION

The M4Zxx-BR00SH has been recognized by Un­derwriters Laboratories under their Component
Recognition Program and carries U.L. File Num­ber E89556.

BATTER Y LI FE

For information on Data Retention Life and Battery
Storage Life, please refer to the Application Note
AN1012.

Figure 2. SNAPHAT Insertion/Extraction Forces

20

7.5

Force (pounds)

2/7

5

12.5

10

7.5

5

2.5

0

123

Average Insertion Force
Average Extraction Force

45

Number of Extractions

6

7

98

10

AI02526

Figure 3. Batt ery D is cha rge Rates

LOAD CHARACTERISTICS Temp: 20˚C

3.5

3.0

2.5

M4ZXX-BR00SH

2.0

Voltage (V)

1.5

1.0
0

LOAD CHARACTERISTICS Temp: 20˚C

3.5

3.0

2.5

2.0

Voltage (V)

1.5

1.0
0

15kΩ 30kΩ

200 400 600 1200 1600 1800

15kΩ 30kΩ 50kΩ 100kΩ

1000 2000 3000 4000 5000 6000

800 1000 1400 2000

Duration (hrs.)

(A)

Duration (hrs.)

(B)

100kΩ

AI02519

GENERAL NOTES

To remove the SNAPHAT top for replacement, a
DIP/IC extractor tool should be used.

Caution: To avoid draining battery do NOT place
SNAPHAT pins in a conductive foam.

Caution:Tto avoid damaging SNAPHAT sockets
do NOT wave solder SOIC.

For battery disposal information, see on the web at

www.rayovac.com.

Figure 4. DIP Extractor Tool

AI02527

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M4ZXX-BR00SH

Table 2. Ordering Information Scheme

Example: M4Z28-BR00 SH 1

Product Family

M4Z = SNAPHAT Battery

Battery Voltage & Capacity

28-BR00 = BR1225, 3 V, 48 mAh
32-BR00 = BR1632, 3 V, 120 mAh

Package

SH = SNAPHAT

Temperature Range

1 = 0 to 70 °C
6 = –40 to 85 °C

For further information on any aspect of this dev ice, please contact the S TMicroelec tronics Sales Office
nearest to you.

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M4ZXX-BR00SH

Table 3. M4Z28-BR00SH - ZEROPOWER 4-pin SNAPHAT Housing for 48 mAh Battery,
Package Mechanical Data

Symb

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

mm inches

Figure 5. M4Z28-BR00SH - ZEROPOWER 4-pin SNAPHAT Housing for 48 mAh Battery,
Package Outline

A1

eA

D

A

B

eB

A3

L

E

SHZP-A

A2

Drawing is not to scale.

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M4ZXX-BR00SH

Table 4. M4Z32-BR00SH - ZEROPOWER 4-pin SNAPHAT Housing for 120 mAh Battery,
Package Mechanical Data

Symb

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
eB 3.20 3.61 0.126 0.142

L 2.03 2.29 0.080 0.090

mm inches

Figure 6. M4Z32-BR12SH - ZEROPOWER 4-pin SNAPHAT Housing for 120 mAh Battery,
Package Outline

A1

eA

D

A

B

eB

A3

L

E

SHZP-A

A2

Drawing is not to scale.

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M4ZXX-BR00SH

If you have any questions or suggestions concerning the matters raised in this document, please send
them to the following electronic mail addresses:

[e-mail]
[e-mail]

Please remember to include your name, company, location, telephone num ber and fax number.

(for application support)
(for general enquiries)

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to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as c ri t i cal components in life support dev i ces or systems without express writ t en approval of STMicro el ectronics.

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