STMICROECTRONICS M4Txx-BR12SH overview
STMicroelectronics M4TxxBR12SH Real-Time Clocks, and TIMEKEEPER SNAPHAT Battery with Crystal The M4Txx-BR12SH SNAPHAT® top is a detachable lithium power source...
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Manufactured bySTMICROECTRONICS
Product groupModules
DescriptionSTMicroelectronics M4TxxBR12SH Real-Time Clocks, and TIMEKEEPER SNAPHAT Battery with Crystal
OverviewThe M4Txx-BR12SH SNAPHAT® top is a detachable lithium power source for ST’s serial real-time clock and non-volatile TIMEKEEPER® surface-mount SOIC package (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 prevents the battery and crystal from being exposed to the high SNAPHAT temperatures of the surface-mount process.
Key FeaturesProvides battery backup power for serial realtime clock, non-volatile TIMEKEEPER® and supervisor devices in the 28- or 44-pin SNAPHAT® SOIC package Removable battery avoids heat associated with surface-mount process Snaps directly onto surface-mounted SNAPHAT SOIC Choice of battery capacities– M4T28-BR12SH = 48 mAh– M4T32-BR12SH = 120 mAh Keyed insertion to ensure proper assembly Removable for replacement and proper disposal Pb-free package Available in Ecopack® packages, tubes
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