DS1647

DS1647 Description

DS1647 Categories

DS1647 Manufacturer

DS1647 Datasheet (PDF)

DS1647 Price & Availability

DS1647 Features

• Integrates NV SRAM, real-time clock, crystal, power-fail control circuit and lithium energy source
• Clock registers are accessed identically to the static RAM. These registers are resident in the eight top RAM locations
• Totally nonvolatile with over 10 years of operation in the absence of power
• BCD coded year, month, date, day, hours, minutes, and seconds with leap year compensation valid up to 2100
• Power-fail write protection allows for ±10% V_CCpower supply tolerance
• DS1647 only (DIP Module)
  
  

  - Standard JEDEC byte-wide 128k x 8 RAM pinout

• DS1647P only (PowerCap® Module Board)
  
  

  - Surface mountable package for direct connection to PowerCap containing battery and crystal
  
  

  - Replaceable battery (PowerCap)
  
  

  - Power-fail output
  
  

  - Pin-for-pin compatible with other densities of DS164XP Timekeeping RAM
  
  

DS1647 Parameters