M4T28-BR12SH_03 Datasheet, PDF (1/12 Pages) STMicroelectronics – TIMEKEEPER SNAPHAT (BATTERY & CRYSTAL)

M4T28-BR12SH
M4T32-BR12SH
TIMEKEEPER^® SNAPHAT^® (BATTERY & CRYSTAL)
FEATURES SUMMARY
s PROVIDES BATTERY BACKUP POWER FOR
NON-VOLATILE TIMEKEEPER^® and
SUPERVISOR DEVICES IN THE 28- OR 44-
PIN 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 = 48mAh
– M4T32-BR12SH = 120mAh
s KEYED INSERTION TO INSURE PROPER
ASSEMBLY
s REMOVABLE FOR REPLACEMENT and
PROPER DISPOSAL
s Pb-FREE PACKAGE
s AVAILABLE IN TUBES OR TAPE & REEL
Figure 1. SNAPHAT Top Package
SNAPHAT (SH)
Battery/Crystal
March 2003
Rev. 2.5
1/12