BQ48SH Datasheet, PDF (1/7 Pages) Texas Instruments – SNAPHAT™ WITH INTEGRATED BATTERT AND CRYSTAL

bq48SH-28x6
SLUS508A – DECEMBER 2001 REVISED – JUNE 2002
SNAPHAT WITH INTEGRATED
BATTERY AND CRYSTAL
FEATURES
D Detachable Unit Allowing Replacement
D Integrated 6-pF Watch Crystal for Real-Time
Clock Operation
D Integrated Lithium Coin Cell for Nonvolatile
Memory Backup
D Protects Battery and Crystal From Conditions
Associated with Surface Mount Soldering
D For Use With bq4802YDSH and bq4802LYDSH
D Keyed Insertion to Avoid Incorrect Attachment
APPLICATIONS
D Telecommunications Base Stations
D Servers
D Handheld Data Collection Equipment
CONNECTION DIAGRAMS
DESCRIPTION
The bq48SH–28x6 is the top section suitable for any
SOIC (DSH) packaged IC including the bq4802YDSH
or bq4802LYDSH parallel real-time clock (RTC) and
NVSRAM controller.
The fully integrated SNAPHAT includes a 6-pF watch
crystal and lithium coin cell with 48 mAh of capacity.
The SNAPHAT is designed to be attached after the
DSH packaged base SOIC has been soldered
preventing the battery and crystal being over-stressed
by the soldering temperatures.
AVAILABLE OPTIONS
PACKAGED DEVICES
TA
SNAPHAT^{ (NSH)
SYMBOL
0°C to 70°C
bq48SH–28x6NSH
bq48SH–28x6
† _{The SNAPHAT package is available taped and}
reeled. Add an R suffix to the device type (e.g.
bq48SH–28x6NSHR to order quantities of 2,500
devices per reel.
X2
BC
X1
VSS
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SNAPHAT is a trademark of STMicroelectronics.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright  2002, Texas Instruments Incorporated
www.ti.com
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