Product Summary

The DS1314S+ is a 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.

Parametrics

DS1314S+ absolute maximum ratings: (1)Voltage Range on Any Pin Relative to Ground: -0.5V to +6.0V; (2)Operating Temperature Range: -40 to +85℃; (3)Storage Temperature Range: -55 to +125℃; (4)Soldering Temperature (reflow, SO or TSSOP): +260℃; (5)Lead Temperature (soldering, 10s): +300℃.

Features

DS1314S+ features: (1)Converts CMOS SRAM into nonvolatile memory; (2)Unconditionally write-protects SRAM when VCC is out of tolerance; (3)Automatically switches to battery backup supply when VCC power failure occurs; (4)Monitors voltage of a lithium cell and provides advanced warning of impending battery failure; (5)Signals low-battery condition on active low Battery Warning output signal; (6)Automatic VCC power-fail detection for 3.0V or 3.3V power supplies; (7)Space-saving 8-pin DIP and SOIC packages; (8)Optional 16-pin SOIC and 20-pin TSSOP versions reset processor when power failure occurs and hold processor in reset during system power-up; (9)Industrial temperature range of -40 to +85℃.

Diagrams

DS1314S+ block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
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DS1314S+
DS1314S+

Maxim Integrated Products

Memory Controllers 3V Cntlr w/Lithium Battery Monitor

Data Sheet

0-1: $8.86
1-25: $5.95
25-50: $4.31
50-100: $4.25
DS1314S+T&R
DS1314S+T&R

Maxim Integrated Products

Memory Controllers 3V Cntlr w/Lithium Battery Monitor

Data Sheet

0-790: $4.48
790-1000: $4.35