DS1646

DS1646 Manufacturer

DS1646 Description

DS1646 Categories

DS1646 Datasheet (PDF)

DS1646 Price & Availability

DS1646 Features

• Integrated 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
• DS1646 only (DIP Module)
  
  ? Standard JEDEC bytewide 128k x 8 RAM pinout
• DS1646P 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

DS1646 Parameters