鈥?/div>
New PowerCap Module (PCM) package
鈥?Directly surface鈥搈ountable module
鈥?Replaceable snap鈥搊n PowerCap provides lith-
ium backup battery
鈥?Standardized pinout for all nonvolatile SRAM
products
鈥?Detachment feature on PowerCap allows easy
removal using a regular screwdriver
DESCRIPTION
The DS1330W 3.3V 256K Nonvolatile SRAM is a
262,144鈥揵it, fully static, nonvolatile SRAM organized
as 32,768 words by eight bits. Each NV SRAM has a
self鈥揷ontained lithium energy source and control cir-
cuitry which constantly monitors V
CC
for an out鈥搊f鈥搕ol-
erance condition. When such a condition occurs, the
lithium energy source is automatically switched on and
write protection is unconditionally enabled to prevent
data corruption. Additionally, the DS1330W has dedi-
cated circuitry for monitoring the status of V
CC
and the
status of the internal lithium battery. DS1330W devices
in the PowerCap Module package are directly surface
mountable and are normally paired with a DS9034PC
PowerCap to form a complete Nonvolatile SRAM mod-
ule. The devices can be used in place of 32K x 8 SRAM,
EEPROM or Flash components.
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