DS1670E+ Overview
real time clocks is located in package 20-TSSOP (0.173, 4.40mm Width).As of Tube, time clock is packaged in this way.There is 2.97V~3.63V voltage supply for this electrical RTC.It can be said that this electrical real time clock belongs to the Portable System Controller type.The real time clock (RTC) that is mounted in the way of Surface Mount is connected to this circuit board.In order to operate properly, the temperature should be 0°C~70°C.During the course of operation, Alarm, Leap Year, Watchdog Timer can be ensured.There is the possibility of terminating transmission lines with 20 terminations, which means that the equipment used to terminate the line will match its characteristic impedance.In this case, the voltage supplied to the electronic component is 3.3V.A total of 20 pins are included in this product.DS1670 are the family name of RTCs .As far as the supply voltage for this electrical digital time clock is concerned, it is 2.5V~3.7V.Mounting type Surface Mount matches the RTC module.A total of 20 pins are attached to this real time clock.Maintaining the supply voltage at 3.3V is the key to high efficiency.Additionally, it has the property of 3-CHANNEL, 8-BIT ADC.There is a frequency of 32.768kHz that can be achieved.With 1 outputs, the real time analog clock is configured.
DS1670E+ Features
20-TSSOP (0.173, 4.40mm Width) package
20 terminations
20 pin count
Be maintained at 3.3V for high efficiency.
1 outputs

DS1670E+ Applications
There are a lot of Maxim Integrated
DS1670E+ Real Time Clocks applications.

Copy machines
Mobile equipment
Battery powered devices
Printers and copiers
Electronic metering
Digital cameras
White goods
Elapsed time counter
Network powered devices
Battery backed up systems

Factory Lead Time	6 Weeks
Contact Plating	Tin
Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	20-TSSOP (0.173, 4.40mm Width)
Number of Pins	20
Operating Temperature	0°C~70°C
Packaging	Tube
Published	2005
JESD-609 Code	e3
Feature	Alarm, Leap Year, Watchdog Timer
Pbfree Code	yes
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	20
Termination	SMD/SMT
ECCN Code	EAR99
Type	Portable System Controller
Additional Feature	3-CHANNEL, 8-BIT ADC
Voltage - Supply	2.97V~3.63V
Terminal Position	DUAL
Peak Reflow Temperature (Cel)	260
Supply Voltage	3.3V
Terminal Pitch	0.65mm
Frequency	32.768kHz
Time@Peak Reflow Temperature-Max (s)	30
Base Part Number	DS1670
Pin Count	20
Number of Outputs	1
Operating Supply Voltage	3.3V
Interface	3-Wire Serial
Logic Function	Clock
External Data Bus Width	1
Time Format	HH:MM:SS (12/24 hr)
Date Format	YY-MM-DD-dd
Current - Timekeeping (Max)	100μA @ 3.3V
Time-Min	SECONDS
Interrupt Capability	Y
Voltage - Supply, Battery	2.5V~3.7V
Volatile	YES
Information Access Method	SERIAL, 3-WIRE
Length	6.5mm
Width	4.4mm
REACH SVHC	Unknown
Radiation Hardening	No
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free