The DS1330 256k Nonvolatile (NV) SRAMs are 262,144-bit, fully static, NV SRAMs organized as 32,768 words by 8 bits. Each NV SRAM has a self-contained lithium energy source and control circuitry which constantly monitors VCC for an out-of-tolerance 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 DS1330 devices have dedicated circuitry for monitoring the status of VCC and the status of the internal lithium battery. DS1330 devices in the PowerCap module package are directly surface mountable and are normally paired with a DS9034PC PowerCap to form a complete NV SRAM module. The devices can be used in place of 32k x 8 SRAM, EEPROM, or Flash components.
Key Features
10 years minimum data retention in the
absence of external power
Data is automatically protected during power
loss
Power supply monitor resets processor when
VCC power loss occurs and holds processor in
reset during VCC ramp-up
Battery monitor checks remaining capacity
daily
Read and write access times as fast as 70ns
Unlimited write cycle endurance
Typical standby current 50µA
Upgrade for 32k x 8 SRAM, EEPROM or
Flash
Lithium battery is electrically disconnected to
retain freshness until power is applied for the
first time
Full ±10% VCC operating range (DS1330Y)
or optional ±5% VCC operating range
(DS1330AB)
Optional industrial temperature range of
-40°C to +85°C, designated IND
Notes: *This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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