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DS1557WP-120

DS1557WP-120

DS1557WP-120

Rochester Electronics, LLC

34 Terminations 3.3V 34 Pin Real Time Clocks Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 0.032MHz

SOT-23

DS1557WP-120 Datasheet PDF

non-compliant

Technical Specifications

Parameter NameValue
TypeParameter
Mounting Type Surface Mount
Package / Case 34-PowerCap™ Module
Surface MountYES
Operating Temperature0°C~70°C
PackagingTube
JESD-609 Code e0
Feature Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K
Pbfree Code no
Part StatusObsolete
Moisture Sensitivity Level (MSL) 3 (168 Hours)
Number of Terminations 34
Type Clock/Calendar
Terminal Finish TIN LEAD
Voltage - Supply 2.97V~3.63V
Terminal Position DUAL
Peak Reflow Temperature (Cel) 240
Supply Voltage 3.3V
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Pin Count34
JESD-30 Code R-XDMA-U34
Qualification StatusCOMMERCIAL
Interface Parallel
Memory Size512KB
Clock Frequency 0.032MHz
External Data Bus Width 8
Time FormatHH:MM:SS (24 hr)
Date FormatYY-MM-DD-dd
Current - Timekeeping (Max) 4mA @ 3.3V
Voltage - Supply, Battery 3V
RoHS StatusNon-RoHS Compliant
In-Stock:141 items

Pricing & Ordering

QuantityUnit PriceExt. Price
1$66.76000$66.76
500$66.0924$33046.2
1000$65.4248$65424.8
1500$64.7572$97135.8
2000$64.0896$128179.2
2500$63.422$158555

DS1557WP-120 Product Details

DS1557WP-120 Overview


In package 34-PowerCap™ Module, real time clocks can be found.In this case, time clock is packaged in the way of Tube.A voltage of 2.97V~3.63V is supplied to this electrical RTC.Electrical real time clock type Clock/Calendar.There is an electronic component mounted in the way of Surface Mount.Ideally, the operating temperature should be 0°C~70°C.During operation, the value of Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K can be ensured.It is possible to terminate transmission lines with 34 terminations, which means that the RTC module terminating the line matches its characteristic impedance.This electronic component receives a voltage of 3.3V.There are 34 pins on it.There is 3V supply voltage for this electrical digital time clock.A memory of 512KB is embedded in the RTC times, which can be used to store programs and data.0.032MHz should be the maximum output frequency.

DS1557WP-120 Features


34-PowerCap™ Module package
34 terminations
34 pin count


DS1557WP-120 Applications


There are a lot of Rochester Electronics, LLC
DS1557WP-120 Real Time Clocks applications.


  • Digital still camera
  • Digital video camera
  • Printers
  • Copy machines
  • Mobile equipment
  • Battery powered devices
  • Printers and copiers
  • Electronic metering
  • Digital cameras
  • White goods

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