DS1284QN+ Overview
There is a package 28-LCC (J-Lead) that contains real time clocks.Tube is the way in which time clock is packaged.As far as the supply voltage for this electrical RTC is concerned, it is 4.5V~5.5V.This electrical real time clock belongs to the Clock/Calendar category.The way this real time clock (RTC) is mounted on the system board is Surface Mount.As far as the operating temperature are concerned, electronic time clocks should be -40°C~85°C.As long as Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer is ensured when operating, the system will work properly.With 28 terminations, transmission lines have the characteristic impedance of the RTC module terminating them.This RTC real time clock is powered by 5V volts.The board is equipped with a total of 28 pins.In the family DS1284, RTCs are a member.This electrical digital time clock is powered by a voltage that is 2.4V~3.5V at the time of installation.For storing the programs and data, the RTC times have an embedded memory of 50B for storing data and programs.A frequency above 0.032MHz should not be used for real time clocks' output.There are 5V power supplies attached to it.Upon receiving an input signal, 1 timers output a signal at a preset time.ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P are also characteristics of it.
DS1284QN+ Features
28-LCC (J-Lead) package
28 terminations
28 pin count
5V power supplies

DS1284QN+ Applications
There are a lot of Maxim Integrated
DS1284QN+ Real Time Clocks applications.

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

Mounting Type	Surface Mount
Package / Case	28-LCC (J-Lead)
Surface Mount	YES
Operating Temperature	-40°C~85°C
Packaging	Tube
Published	2009
JESD-609 Code	e3
Feature	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	28
ECCN Code	EAR99
Type	Clock/Calendar
Terminal Finish	Matte Tin (Sn)
Additional Feature	ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P
HTS Code	8473.30.11.80
Voltage - Supply	4.5V~5.5V
Terminal Position	QUAD
Peak Reflow Temperature (Cel)	NOT SPECIFIED
Supply Voltage	5V
Terminal Pitch	1.27mm
Reach Compliance Code	unknown
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Base Part Number	DS1284
Pin Count	28
JESD-30 Code	S-PQCC-J28
Qualification Status	Not Qualified
Power Supplies	5V
Interface	Parallel
Memory Size	50B
Clock Frequency	0.032MHz
External Data Bus Width	8
Number of Timers	1
Time Format	HH:MM:SS:hh (12/24 hr)
Date Format	YY-MM-DD-dd
Current - Timekeeping (Max)	7mA @ 5V
Time-Min	1/100SECOND
Interrupt Capability	Y
Voltage - Supply, Battery	2.4V~3.5V
Volatile	YES
Length	11.505mm
Height Seated (Max)	4.57mm
Width	11.505mm
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free