M4T32-BR12SH1 STMicroelectronics, M4T32-BR12SH1 Datasheet - Page 17

IC SNAPHAT BATT/CRYSTAL 28-SOIC

M4T32-BR12SH1

Manufacturer Part Number
M4T32-BR12SH1
Description
IC SNAPHAT BATT/CRYSTAL 28-SOIC
Manufacturer
STMicroelectronics

Specifications of M4T32-BR12SH1

Battery Type
Li-(CF)
Operating Supply Voltage
0 V to 2.8 V
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Package / Case
SOIC-28
Mounting Style
SMD/SMT
Capacity
120 mAh
Chemical System
Lithium Poly-Carbonmonoflouride
Primary Type
Pack
Size
Cylindrical
Standards
UL Recognized
Temperature, Operating
0 to +75 °C
Temperature, Operating, Maximum
70 °C
Temperature, Operating, Minimum
0 °C
Termination
Snap-On
Voltage, Battery
3 V
Voltage, Rating
3 V
Supply Voltage Range
2.8V
Battery Ic Case Style
SOIC
No. Of Pins
4
Operating Temperature Range
0°C To +70°C
Crystal Terminals
Snap On
Load Capacitance
12.5pF
Rohs Compliant
Yes
Crystal Mounting Type
SMD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-3687-5

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M4T32-BR12SH1
Manufacturer:
ST
Quantity:
115
Part Number:
M4T32-BR12SH1
Manufacturer:
GRENERGY
Quantity:
2 000
Part Number:
M4T32-BR12SH1
Manufacturer:
ST
Quantity:
20 000
M48T35AV
3.6
V
I
fluctuations, resulting in spikes on the V
capacitors are used to store energy which stabilizes the V
bypass capacitors will be released as low going spikes are generated or energy will be
absorbed when overshoots occur. A bypass capacitor value of 0.1 µF (as shown in
Figure
In addition to transients that are caused by normal SRAM operation, power cycling can
generate negative voltage spikes on V
one volt. These negative spikes can cause data corruption in the SRAM while in battery
backup mode. To protect from these voltage spikes, it is recommended to connect a
Schottky diode from V
1N5817 is recommended for through hole and MBRS120T3 is recommended for surface
mount.
Figure 11. Supply voltage protection
CC
CC
transients, including those produced by output switching, can produce voltage
noise and negative going transients
11) is recommended in order to provide the needed filtering.
CC
to V
SS
V CC
Doc ID 6845 Rev 8
(cathode connected to V
0.1µF
CC
CC
that drive it to values below V
bus. These transients can be reduced if
V CC
V SS
CC
DEVICE
CC
, anode to V
bus. The energy stored in the
SS
SS
Clock operations
by as much as
). Schottky diode
AI02169
17/29

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