DS1689 Overview
Real time clocks is embedded in the 28-DIP (0.600, 15.24mm) package.Time clock is packaged in the way of Tube.The supply voltage of this electrical RTC is 2.7V~3.3V 4.5V~5.5V.The type of this electrical real time clock is Clock/Calendar.This real time clock (RTC) is mounted in the way of Through Hole.The operating temperature should be 0°C~70°C.NVSRAM can be ensured when operating.There are 28 terminations, which are the practice of ending a transmission line welectronic time clocksh a RTC module that matches the characteristic impedance of the line.The supply voltage of this RTC real time clock is 5V.It is equipped with 28 pins.The supply voltage of this electrical digital time clock is 2.5V~3.7V.The RTC times embed a memory of 114B available for storing programs and data.There are 1 timers, which are control real time clocks that output a signal at a preset time after an input signal is received.It is also characterized by AUXILIARY BATTERY I/P; POWER ON INTRPT WITH KICK START; RAM CLEAR I/P; 64-BIT SILICON SERIAL NUMBER.This digital time clock is designed with 16 Bits.
DS1689 Features
28-DIP (0.600, 15.24mm) package
28 terminations
28 pin count
16 Bits

DS1689 Applications
There are a lot of Rochester Electronics, LLC
DS1689 Real Time Clocks applications.

Mobile telephones
Portable instruments
Electronic metering
Battery powered products
Automotive
Industrial
Digital still camera
Digital video camera
Printers
Copy machines

Mounting Type	Through Hole
Package / Case	28-DIP (0.600, 15.24mm)
Surface Mount	NO
Operating Temperature	0°C~70°C
Packaging	Tube
JESD-609 Code	e0
Feature	NVSRAM
Pbfree Code	no
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Number of Terminations	28
Type	Clock/Calendar
Terminal Finish	TIN LEAD
Additional Feature	AUXILIARY BATTERY I/P; POWER ON INTRPT WITH KICK START; RAM CLEAR I/P; 64-BIT SILICON SERIAL NUMBER
Voltage - Supply	2.7V~3.3V 4.5V~5.5V
Terminal Position	DUAL
Peak Reflow Temperature (Cel)	245
Supply Voltage	5V
Terminal Pitch	2.54mm
Reach Compliance Code	unknown
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Pin Count	28
JESD-30 Code	R-PDIP-T28
Qualification Status	COMMERCIAL
Interface	Parallel
Memory Size	114B
Number of Bits	16
External Data Bus Width	8
Number of Timers	1
Time Format	HH:MM:SS (12/24 hr)
Date Format	YY-MM-DD-dd
Current - Timekeeping (Max)	2mA @ 3V 3mA @ 5V
Voltage - Supply, Battery	2.5V~3.7V
Length	36.83mm
Height Seated (Max)	5.08mm
Width	15.24mm
RoHS Status	Non-RoHS Compliant