ST M4Z28-BR00SH, M4Z32-BR00SH User Manual

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Features

M4Z28-BR00SH M4Z32-BR00SH

ZEROPOWER® SNAPHAT® (battery)

■ Provides battery backup power for non-volatile

ZEROPOWER 28-pin SNAPHAT

■ Removable battery avoids heat associated with

and supervisor devices in the

SOIC package

surface-mount process

■ Snaps directly onto surface-mounted

SNAPHAT

■ Choice of battery capacities

SOIC

– 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 tubes or tape & reel

SNAPHAT® (SH)

battery

February 2009 Rev 3 1/16

www.st.com

Contents M4Z28-BR00SH, M4Z32-BR00SH

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

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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 Table 5. SH – 4-pin SNAPHAT

Table 6. Ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Table 7. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

housing for 48 mAh battery package mech. data . . . . . . . . . . . . . 11

housing for 120 mAh battery package mech. data . . . . . . . . . . . . 12

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List of figures M4Z28-BR00SH, M4Z32-BR00SH

List of figures

Figure 1. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 2. SNAPHAT

Figure 3. Battery discharge rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 4. DIP extractor tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 5. SH – 4-pin SNAPHAT Figure 6. SH – 4-pin SNAPHAT

Figure 7. Recycling symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

insertion/extraction forces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

housing for 48 mAh battery package outline . . . . . . . . . . . . . . . . 11

housing for 120 mAh battery package outline . . . . . . . . . . . . . . . 12

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M4Z28-BR00SH, M4Z32-BR00SH Description

1 Description

The M4Zxx-BR00SH SNAPHAT® top is a detachable lithium power source for ST’s nonvolatile ZEROPOWER

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 1. Logic diagram

SNAPHAT

BAT–VBAT+

AI02525

Table 1. Signal names

BAT–

BAT+

Negative voltage

Positive voltage

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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 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 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.

top also incorporates four molded-in retaining clips which hold

Figure 2. SNAPHAT

12.5

7.5

Force (pounds)

2.5

12345678910

insertion/extraction forces

Number of Extractions

Average Insertion

Average Extraction

AI02526

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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 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

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 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.

top for replacement, a DIP/IC extractor tool should be used (see

insertion.

, battery damage

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Mechanical information M4Z28-BR00SH, M4Z32-BR00SH

Figure 3. Battery discharge rates

LOAD CHARACTERISTICS Temp: 20°C

3.5

3.0

2.5

2.0

Voltage (V)

15kΩ 30kΩ

1.5

1.0 200 400 600 1200 1600 1800

LOAD CHARACTERISTICS Temp: 20°C

3.5

3.0

2.5

2.0 15kΩ 30kΩ 50kΩ 100kΩ

1.5

1.0

1000 2000 3000 4000 5000 6000

800 1000 1400 2000

Duration (hrs.)

(A)

Duration (hrs.)

(B)

100kΩ

BR1225

BR1632

AI02519

Figure 4. DIP extractor tool

AI02527

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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. Refer also to the STMicroelectronics SURE Program and other relevant quality documents.

Table 2. Absolute maximum ratings

Symbol Parameter Value Unit

STG

Ambient operating temperature –40 to 85 °C

Storage temperature (VCC off, oscillator off) –40 to 85 °C

Caution: Do NOT wave solder SOIC to avoid damaging SNAPHAT

sockets.

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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 (VCC)2.82.8V

Nominal battery capacity 48 120 mAh

Battery chemistry Li(CF) Li(CF)

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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 specifications, grade definitions and product status are available at: www.st.com. ECOPACK

Figure 5. SH – 4-pin SNAPHAT

packages, depending on their level of environmental compliance. ECOPACK®

is an ST trademark.

housing for 48 mAh battery package outline

SHZP-A

Note: Drawing is not to scale.

Table 4. SH – 4-pin SNAPHAT

Symbol

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

housing for 48 mAh battery package mech. data

mm inches

11/16

Package mechanical data M4Z28-BR00SH, M4Z32-BR00SH

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

Symbol

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

housing for 120 mAh battery package mech. data

SHZP-A

mm inches

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M4Z28-BR00SH, M4Z32-BR00SH Part numbering

6 Part numbering

Table 6. Ordering information scheme

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 85°C

Shipping method

blank = ECOPACK

TR = ECOPACK

package, tubes

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.

13/16

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.

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".

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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

10-Jul-2001 2.2

21-Jan-2002 2.3

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

Remove references to “crystal;” change references to “supervisor” from controller; clarify temperature characteristics

Change to include crystal accuracy (Ta b l e 3.); add text for SNAPHAT insertion force tolerance and battery characteristics note

Reformatted document; updated Section 5: Package mechanical data,

Section 2.4: General notes, andTa bl e 6 ; added Section 7: Environmental information.

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M4Z28-BR00SH, M4Z32-BR00SH

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