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DS1554-70IND+

Real Time Clock (RTC) IC Clock/Calendar 32KB Parallel 32-DIP Module (0.600", 15.24mm)

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DS1554-70IND+ General Description

The DS1554 is a full-function, year 2000-compliant (Y2KC), real-time clock/calendar (RTC) with an RTC alarm, watchdog timer, power-on reset, battery monitor, and 32k x 8 nonvolatile static RAM. User access to all registers within the DS1554 is accomplished with a byte-wide interface as shown in Figure 1.The RTC registers contain century, year, month, date, day, hours, minutes, and seconds data in 24-hour binary-coded decimal (BCD) format. Corrections for day of month and leap year are made automatically.

Analog Devices, Inc Inventory

Key Features

  • Integrated NV SRAM, Real-Time Clock (RTC), Crystal, Power-Fail Control Circuit, Lithium Energy Source
  • Clock Registers are Accessed Identically to the Static RAM; These Registers Reside in the 16 Top RAM Locations
  • Century Byte Register (i.e., Y2K Compliant)
  • Totally Nonvolatile with Over 10 Years of Operation in the Absence of Power
  • Precision Power-On Reset
  • Programmable Watchdog Timer and RTC Alarm
  • BCD-Coded Year, Month, Date, Day, Hours, minutes, and Seconds with Automatic
  • Leap- Year Compensation Valid Up to the Year 2100
  • Battery Voltage-Level Indicator Flag
  • Power-Fail Write Protection Allows for ±10% VCC Power-Supply Tolerance
  • Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time
  • Also Available in Industrial Temperature Range: -40°C to +85°C
Analog Devices, Inc Original Stock
Analog Devices, Inc Inventory

Specifications

model DS1554-70IND+ package N/A
packingQty Tube,11 packingOption Tube
packageType X rohs roHN
lifeCycle production tempRange -40 to 85C
Manufacturer Analog Devices Inc. Product Category Real Time Clock
Shipping Restrictions Available in USA only. RoHS Details
Mounting Style Through Hole Package / Case EDIP-32
RTC Bus Interface Parallel Date Format YY-MM-DD-dd
Time Format HH:MM:SS Battery Backup Switching Integrated Battery
RTC Memory Size 32 kB Supply Voltage - Max 5.5 V
Supply Voltage - Min 4.5 V Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 85 C Brand Analog Devices / Maxim Integrated
Function Calendar, Clock, NV Timekeeping RAM, Watchdog Timekeeper Memory Type NV RAM
Operating Supply Current 75 mA Product Type Real Time Clocks
Series DS1554 Factory Pack Quantity 11
Subcategory Clock & Timer ICs Part # Aliases DS1554 90-15540+07I
DS1554: Block Diagram

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Packing

AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

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If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.

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