BQ4845S-A4TRG4 Overview
The package SOIC contains real time clocks.It is possible to terminate a transmission line with a RTC module that matches the characteristic impedance of the line, which is known as 28 termination.Obviously, a voltage of 5V is being supplied to this electronic component.There are 28 pins on it.Real time clocks' output frequency should not exceed 0.032MHz.There are 5V power supplies attached to it.It is equipped with 28 pins.Upon receiving an input signal, 1 timers output a signal at a preset time.There is a maximum supply voltage (Vsup) of 5.5V.This electrical real time analog clock has the type TIMER, REAL TIME CLOCK of uPs/uCs/Peripheral ICs.For normal operation, the supply voltage (Vsup) should be kept above 4.75V.Operating temperatures should be below 70°C.
BQ4845S-A4TRG4 Features
SOIC package
28 terminations
28 pin count
5V power supplies

BQ4845S-A4TRG4 Applications
There are a lot of Texas Instruments
BQ4845S-A4TRG4 Real Time Clocks applications.

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

Package / Case	SOIC
Surface Mount	YES
Number of Pins	28
Pbfree Code	no
Number of Terminations	28
ECCN Code	EAR99
HTS Code	8542.39.00.01
Terminal Position	DUAL
Terminal Form	GULL WING
Peak Reflow Temperature (Cel)	NOT SPECIFIED
Supply Voltage	5V
Terminal Pitch	1.27mm
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Pin Count	28
Qualification Status	Not Qualified
Operating Temperature (Max)	70°C
Supply Voltage-Max (Vsup)	5.5V
Power Supplies	5V
Temperature Grade	COMMERCIAL
Supply Voltage-Min (Vsup)	4.75V
uPs/uCs/Peripheral ICs Type	TIMER, REAL TIME CLOCK
Clock Frequency	0.032MHz
External Data Bus Width	8
Number of Timers	1
Time-Min	SECONDS
Interrupt Capability	Y
Volatile	NO
Information Access Method	PARALLEL, DIRECT ADDRESS
Length	17.9705mm
Height Seated (Max)	2.667mm
Width	7.5565mm
RoHS Status	Non-RoHS Compliant
Lead Free	Contains Lead