28 Terminations 5V 28 Pin DS1643 Real Time Clocks Leap Year, NVSRAM 0.032MHz
SOT-23
DS1643-70+ Datasheet
non-compliant
In-Stock: 0 items
Specifications
Name
Value
Type
Parameter
Mounting Type
Through Hole
Package / Case
28-DIP Module (0.600, 15.24mm)
Surface Mount
NO
Operating Temperature
0°C~70°C
Packaging
Tube
Published
2010
JESD-609 Code
e3
Feature
Leap Year, NVSRAM
Part Status
Obsolete
Moisture Sensitivity Level (MSL)
1 (Unlimited)
Number of Terminations
28
ECCN Code
EAR99
Type
Clock/Calendar
Terminal Finish
Matte Tin (Sn)
HTS Code
8542.39.00.01
Voltage - Supply
4.5V~5.5V
Terminal Position
DUAL
Peak Reflow Temperature (Cel)
260
Supply Voltage
5V
Terminal Pitch
2.54mm
Time@Peak Reflow Temperature-Max (s)
NOT SPECIFIED
Base Part Number
DS1643
Pin Count
28
JESD-30 Code
R-XDMA-P28
Qualification Status
Not Qualified
Power Supplies
5V
Interface
Parallel
Memory Size
8KB
Clock Frequency
0.032MHz
External Data Bus Width
8
Number of Timers
1
Time Format
HH:MM:SS (24 hr)
Date Format
YY-MM-DD-dd
Current - Timekeeping (Max)
3mA @ 5V
Time-Min
SECONDS
Interrupt Capability
N
Volatile
NO
Length
37.595mm
Height Seated (Max)
9.02mm
Width
15.24mm
RoHS Status
ROHS3 Compliant
Lead Free
Lead Free
DS1643-70+ Product Details
DS1643-70+ Overview
In package 28-DIP Module (0.600, 15.24mm), real time clocks can be found.In this case, time clock is packaged in the way of Tube.A voltage of 4.5V~5.5V is supplied to this electrical RTC.Electrical real time clock type Clock/Calendar.There is an electronic component mounted in the way of Through Hole.Ideally, the operating temperature should be 0°C~70°C.During operation, the value of Leap Year, NVSRAM can be ensured.It is possible to terminate transmission lines with 28 terminations, which means that the RTC module terminating the line matches its characteristic impedance.This electronic component receives a voltage of 5V.There are 28 pins on it.This object belongs to the family DS1643.A memory of 8KB is embedded in the RTC times, which can be used to store programs and data.0.032MHz should be the maximum output frequency.For the purpose of powering the real time clock, the power supply is set to 5V.1 timers are control real time clocks that emits a signal after receiving an input signal at a predetermined time.