DS1345W Maxim, DS1345W Datasheet - Page 3

• Manufacturer Part Number: DS1345W
• Description: The DS1345W 3
• Manufacturer: Maxim

DS1345W
FRESHNESS SEAL
Each DS1345W is shipped from Dallas Semiconductor with its lithium energy source disconnected,
guaranteeing full energy capacity. When V
is first applied at a level greater than V
, the lithium
CC
TP
energy source is enabled for battery backup operation.
PACKAGES
The 34-pin PowerCap Module integrates SRAM memory and nonvolatile control into a module base
along with contacts for connection to the lithium battery in the DS9034PC PowerCap. The PowerCap
Module package design allows a DS1345W device to be surface mounted without subjecting its lithium
backup battery to destructive high-temperature reflow soldering. After a DS1345W is reflow soldered, a
DS9034PC is snapped on top of the PCM to form a complete Nonvolatile SRAM module. The
DS9034PC is keyed to prevent improper attachment. DS1345W module bases and DS9034PC
PowerCaps are ordered separately and shipped in separate containers. See the DS9034PC data sheet for
further information.
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