DS1315
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DS1315

Phantom Time Chip

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Part Models 14
1ku List Price Starting From $12.81
Features
  • Real-Time Clock Keeps Track of Hundredths of Seconds, Seconds, Minutes, Hours, Days, Date of the Month, Months, and Years
  • Automatic Leap Year Correction Valid Up to 2100
  • No Address Space Required to Communicate with RTC
  • Provides Nonvolatile Controller Functions for Battery Backup of SRAM
  • Supports Redundant Battery Attachment for High-Reliability Applications
  • Full ±10% VCC Operating Range
  • +3.3V or +5V Operation
  • Industrial (–40°C to +85°C) Operating Temperature Ranges Available
Additional Details
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The DS1315 Phantom Time Chip is a combination of a CMOS timekeeper and a nonvolatile memory controller. In the absence of power, an external battery maintains the timekeeping operation and provides power for a CMOS static RAM. The watch keeps track of hundredths of seconds, seconds, minutes, hours, day, date, month, and year information. The last day of the month is automatically adjusted for months with less than 31 days, including leap year correction. The watch operates in one of two formats: a 12-hour mode with an AM/PM indicator or a 24-hour mode. The nonvolatile controller supplies all the necessary support circuitry to convert a CMOS RAM to a nonvolatile memory. The DS1315 can be interfaced with either RAM or ROM without leaving gaps in memory.

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file View Data Sheet (Rev.6)
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Part Models 14
1ku List Price Starting From $12.81
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DS1315

Documentation

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Data Sheet

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UPDATED 01/03/2012
English

DS1315: Phantom Time Chip Data Sheet (Rev.6)

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643.00K
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UPDATED 01/01/1900
Chinese

DS1315: 隐含时钟芯片 Data Sheet

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UPDATED 01/01/1900
Japanese

DS1315: ファントムタイムチップ Data Sheet

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User Guide

1

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UPDATED 09/25/2002
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UG-52: Dallas Real Time Chip (RTC) Guide redirect icon

185.00K

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Reliability Data

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UPDATED 01/12/2023
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DS1315 Reliability Data redirect icon

27.95K

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Technical Articles

4

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UPDATED 03/27/2002
English
Lithium Coin-Cell Batteries: Predicting an Application Lifetime redirect icon

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UPDATED 11/26/2012
Japanese
リチウムコインセルバッテリ：アプリケーション寿命の予測 redirect icon

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UPDATED 09/17/2012
English
State Machine Logic in Binary-Coded Decimal (BCD)-Formatted Real-Time Clocks redirect icon

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UPDATED 03/28/2014
English
Tips for Writing Bulletproof Real-Time Clock Control Code redirect icon

Design Note

6

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UPDATED 02/15/2002
English
Design Considerations for Analog Devices Real-Time Clocks redirect icon

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UPDATED 07/09/2002
English
Using the SmartWatch/Phantom Clocks with a Microcontroller redirect icon

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UPDATED 03/29/2001
English
Crystal Considerations with Maxim Real-Time Clocks (RTCs) redirect icon

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UPDATED 01/26/2011
English
Oscillator Design Considerations for Low-Current Applications redirect icon

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UPDATED 02/15/2002
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Using the DS32kHz with Maxim Real-Time Clocks redirect icon

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UPDATED 05/26/2006
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Selecting a Backup Source for Real-Time Clocks redirect icon

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Documentation

Technical Documents 12
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Data Sheet 1

DS1315: Phantom Time Chip Data Sheet (Rev.6)

Reliability Data 1

DS1315 Reliability Data

User Guide 1

UG-52: Dallas Real Time Chip (RTC) Guide

Design Note 6

Design Considerations for Analog Devices Real-Time Clocks
Using the SmartWatch/Phantom Clocks with a Microcontroller
Crystal Considerations with Maxim Real-Time Clocks (RTCs)
Oscillator Design Considerations for Low-Current Applications
Using the DS32kHz with Maxim Real-Time Clocks
Selecting a Backup Source for Real-Time Clocks

Technical Articles 3

Lithium Coin-Cell Batteries: Predicting an Application Lifetime
State Machine Logic in Binary-Coded Decimal (BCD)-Formatted Real-Time Clocks
Tips for Writing Bulletproof Real-Time Clock Control Code

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
DS1315-33+ Plastic Dual-In-Line, Narrow (0.3in) external-link
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  • Material Declaration external-link
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DS1315-5+ Plastic Dual-In-Line, Narrow (0.3in) external-link
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DS1315E-33+ Thin Shrink Small-Outline Package external-link
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DS1315E-5+ Thin Shrink Small-Outline Package external-link
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  • Material Declaration external-link
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DS1315EN-33+ Thin Shrink Small-Outline Package external-link
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DS1315EN-33+T&R Thin Shrink Small-Outline Package external-link
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DS1315N-5+ Plastic Dual-In-Line, Narrow (0.3in) external-link
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  • Material Declaration external-link
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DS1315S-33+ Small-Outline IC, Wide (0.3in) external-link
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DS1315S-33+T&R Small-Outline IC, Wide (0.3in) external-link
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DS1315S-5+ Small-Outline IC, Wide (0.3in) external-link
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DS1315S-5+T&R Small-Outline IC, Wide (0.3in) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
DS1315SN-33+ Small-Outline IC, Wide (0.3in) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
DS1315SN-33+T&R Small-Outline IC, Wide (0.3in) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
DS1315SN-5+ Small-Outline IC, Wide (0.3in) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link

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