DS1314S+ by Analog Devices

3V Nonvolatile Controller with Lithium Battery Monitor

Status: Active
Series: DS1314
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The DS1314 Nonvolatile Controller with Battery Monitor is a CMOS circuit which solves the application problem of converting CMOS RAM into nonvolatile memory. Incoming power is monitored for an out-of-tolerance condition. When such a condition is detected, chip enable is inhibited to accomplish write protection and the battery is switched on to supply the RAM with uninterrupted power. Special circuitry uses a low-leakage CMOS process which affords precise voltage detection at extremely low battery consumption. In addition to battery-backup support, the DS1314 performs the important function of monitoring the remaining capacity of the lithium battery and providing a warning before the battery reaches end-of-life. Because the open-circuit voltage of a lithium backup battery remains relatively constant over the majority of its life, accurate battery monitoring requires loaded-battery voltage measurement. The DS1314 performs such measurement by periodically comparing the voltage of the battery as it supports an internal resistive load with a carefully selected reference voltage. If the battery voltage falls below the reference voltage under such conditions, the battery will soon reach end-of-life. As a result, the Battery Warning pin is activated to signal the need for battery replacement.

Prices starting from US$6.69


Distributor Starting From Stock
Logo for element14 element14 US$9.63
626
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Logo for Farnell Farnell US$9.42
626
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Logo for Newark Electronics Newark Electronics US$7.97
472
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Logo for CoreStaff CoreStaff US$6.81
78
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Features

Converts CMOS SRAM into nonvolatile memory
Unconditionally write-protects SRAM when VCC is out of tolerance
Automatically switches to battery backup supply when VCC power failure occurs
Monitors voltage of a lithium cell and provides advanced warning of impending battery failure
Signals low-battery condition on active low Battery Warning output signal
Automatic VCC power-fail detection for 3.0V or 3.3V power supplies
Space-saving 8-pin DIP and SOIC packages
Optional 16-pin SOIC and 20-pin TSSOP versions reset processor when power failure occurs and hold processor in reset during system power-up
Industrial temperature range of -40°C to +85°C

Specifications

CE Cntrl. Yes
Smart Socket w/Int. Batt. No
Li Batt. Monitor Yes
Pwr. Fail Out Yes
RAMs Controlled 1
VSUPPLY (V) 3.3
Package/Pins SOIC (N)/8SOIC (W)/16TSSOP/20
Oper. Temp. (°C) -40 to +85
BudgetaryPrice (See Notes) 7.58


DS1314S+ Semiconductors - ICs by Analog Devices

NONVOLATILE SRAM CNTRL WSOIC-16

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

Memory Controller Type Nonvolatile SRAM
Voltage Tolerance ± -
Supply Voltage Min 2.7V
Supply Voltage Max 3.6V
Controller IC Case Style WSOIC
No. of Pins 16Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

NONVOLATILE SRAM CNTRL, WSOIC-16 | element14
Nonvolatile Sram Cntrl, Wsoic-16 | Newark Electronics
3V Non-Volatile Controller SOIC16W | RS

Frequently Asked Questions

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Is the DS1314S+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for DS1314S+ have stock available?

Authorised distributors including element14, Farnell, Newark Electronics, CoreStaff and RS have stock available or on a lead time for DS1314S+ .

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