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DS1318 Datasheet Parallel-interface Elapsed Time Counter

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-5664; Rev 1; 12/10 Parallel-Interface Elapsed Time Counter DS1318.

General Description

The DS1318 parallel-interface elapsed time counter (ETC) is a 44-bit counter that maintains the amount of time that the device operates from main and/or backup power or during an external event.

The internal frequency of the counter clock is 4.096kHz, which provides a 244µs resolution and a maximum count of over 136 years.

A built-in power-sense circuit detects power failures, automatically switches to the backup supply, and controls the timer.

Key Features

  • Byte-Wide Parallel Interface.
  • 44-Bit Binary Counter Provides Timer with 244µs Resolution.
  • Automatic Power-Fail Detect and Switch Circuitry Selects Power Source from the Primary Power and the Battery, and Write Protects the Internal Registers.
  • Internal Power-Fail Circuit Allows Timer to Provide Primary or Battery Operation Times.
  • Timer can Alternately Provide an Event Timer of Either an Active-High or Active-Low Pulse.
  • Interrupt Output Genera.

DS1318 Distributor & Price

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More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
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DS1306 Serial Alarm Real-Time Clock
DS1308 Low-Current I2C RTC
DS1321 Flexible Nonvolatile Controller
DS1337 I2C Serial Real-Time Clock
DS1339 I2C Serial Real-Time Clock