M48T35AV
3.3V, 256Kbit (32Kbit x 8) TIMEKEEPER
®
SRAM
Features
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Integrated, ultra low power SRAM, real-time
clock, power-fail control circuit and battery
BYTEWIDE™ RAM-like clock access
BCD coded year, month, day, date, hours,
minutes, and seconds
Battery low flag (BOK)
Frequency test output for real-time clock
Automatic power-fail chip deselect and write
protection
Write protect voltages
(V
PFD
= Power-fail deselect voltage):
– M48T35AY: V
CC
= 4.5 to 5.5V
4.2V
≤
V
PFD
≤
4.5V
– M48T35AV: V
CC
= 3.0 to 3.6V
2.7V
≤
V
PFD
≤
3.0V
Self-contained battery and crystal in the
CAPHAT™ DIP package
SOIC package provides direct connection for a
SNAPHAT
®
housing containing the battery and
crystal
SNAPHAT
®
housing (battery and crystal) is
replaceable
Pin and function compatible with JEDEC
standard 32Kbit x 8 SRAMs
RoHS compliant
– Lead-free second level interconnect
PCDIP28 (PC)
battery/crystal
CAPHAT
28
1
SNAPHAT (SH)
battery/crystal
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28
1
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SOH28 (MH)
November 2007
Rev 6
1/28
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