ST M4Z28-BR00SH, M4Z32-BR00SH User Manual
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
1
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
2/16
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
3/16
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
4/16
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
V
BAT–VBAT+
AI02525
Table 1. Signal names
V
BAT–
V
BAT+
Negative voltage
Positive voltage
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