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What is M4T28-BR12SH6?

This electronic component, produced by the manufacturer "ST Microelectronics", performs the same function as "TIMEKEEPER SNAPHAT Battery & Crystal".


M4T28-BR12SH6 Datasheet PDF - ST Microelectronics

Part Number M4T28-BR12SH6
Description TIMEKEEPER SNAPHAT Battery & Crystal
Manufacturers ST Microelectronics　
Logo ST Microelectronics Logo　


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M4TXX-BR12SH
TIMEKEEPER SNAPHAT (Battery & Crystal)
s Provides Battery Backup Power for Non-Volatile
TIMEKEEPERs and Controllers in the
SNAPHAT SOIC Package
s Removable Battery Avoids Heat Associated
with Surface Mount Process
s Snaps Directly onto Surface-Mounted
SNAPHAT SOIC
s Choice of Battery Capacities
– M4T28-BR12SH = 48 mAh
– M4T32-BR12SH = 120 mAh
s Keyed Insertion to Insure Proper Assembly
s Removable for Replacement and Proper
Disposal
s Available in Tubes or Tape & Reel
s For Use with the 28 and 44 pin SOIC Versions
of the TIMEKEEPER Product Families
SNAPHAT (SH)
Battery & Crystal
Figure 1. Logic Diagram
DESCRIPTION
The M4Txx-BR12SH SNAPHAT top is a detach-
able lithium power source for ST’s non-volatile
TIMEKEEPER surface mount SOIC (MH) pack-
age (28 and 44 pin).
The SNAPHAT top contains both the battery and
crystal and is designed to be "snapped on" after
the SOIC is surface mounted on the PC board.
Thus the two piece solution avoids the battery and
crystal from having to be exposed to the high tem-
peratures of the surface mount process.
X1 X2
SNAPHAT
VBAT– VBAT+
AI02528
November 1999
1/7

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M4T28-BR12SH6 equivalent
M4TXX-BR12SH
Table 3. M4T28-BR12SH - TIMEKEEPER 4-pin SNAPHAT Housing for 48 mAh Battery & Crystal,
Package Mechanical Data
mm inches
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
Figure 5. M4T28-BR12SH - TIMEKEEPER 4-pin SNAPHAT Housing for 48 mAh Battery & Crystal,
Package Outline
A1 A
A2
A3
eA B L
D eB
Drawing is not to scale.
E
SHTK-A
5/7


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for M4T28-BR12SH6 electronic component.


Information Total 7 Pages
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Featured Datasheets

Part NumberDescriptionMFRS
M4T28-BR12SHThe function is "5.0 OR 3.0V. 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR" 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR"
M4T28-BR12SHThe function is TIMEKEEPER SNAPHAT Battery & Crystal. ST MicroelectronicsST Microelectronics
M4T28-BR12SHThe function is 5.0 OR 3.0V/ 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR. ST MicroelectronicsST Microelectronics

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