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DS1312E+T&R

IC CONTROLLER NV BW/RST 20-TSSOP

Product Category: Memory Controllers
Mfr. Part #
DS1312E+T&R
Manufacturer: Maxim Integrated
Package: 20-TSSOP (0.173", 4.40mm Width)
Lead Free Status /RoHS Status:
Data Sheet: DS1312E+T&R Datasheet
Inventory: In Stock

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Mfr. Part #: DS1312E+T&R

Specifications
Product Details

Specifications

Manufacturer Maxim Integrated

Product Category Memory Controllers

Series DS1312E

Type Non-Volatile RAM (NVRAM)

Packaging Tape & Reel (TR) Alternate Packaging

Unit-Weight 0.006737 oz

Mounting-Style SMD/SMT

Package-Case 20-TSSOP (0.173", 4.40mm Width)

Operating-Temperature -40Â°C ~ 85Â°C

Voltage-Supply 4.75 V ~ 5.5 V

Supplier-Device-Package 20-TSSOP

Memory-Type Nonvolatile RAM - NVRAM

Controller-Type Nonvolatile RAM

Maximum Operating Temperature + 85 C

Operating temperature range - 40 C

Description-Function Converting CMOS RAM into nonvolatile memory

Operating-Supply-Current 50 uA

Battery-Backup-Switching Yes

Part-#-Aliases 90-1312E+TRL DS1312E

Supply-Voltage-Max 5.5 V

Supply-Voltage-Min 4.75 V

Package-Case TSSOP-20

Number-of-Memory-Channels 1 Memory Channel

Lithium-Battery-Monitor Yes

Product Details

DESCRIPTION

The DS1312 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 outof-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.

FEATURES

â—¾ Converts CMOS SRAM into nonvolatile memory
â—¾ Unconditionally write-protects SRAM when VCC is out of tolerance
â—¾ Automatically switches to battery backup supply when VCC power failure occurs
â—¾ Monitors voltage of a lithium cell and provides advanced warning of impending battery failure
â—¾ Signals low-battery condition on active low Battery Warning output signal
â—¾ Optional 5% or 10% power-fail detection
â—¾ Space-saving 8-pin DIP and SOIC packages
â—¾ Optional 16-pin SOIC and 20-pin TSSOP versions reset processor when power failure occurs and hold processor in reset during system power-up
â—¾ Industrial temperature range of -40Â°C to +85Â°C

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Mfr. Part #: DS1312E+T&R