NJU6356 Datasheet, PDF (1/6 Pages) New Japan Radio – SERIAL I/O REAL TIME CLOCK

NJU6356
SERIAL I/O REAL TIME CLOCK
sGENERAL DESCRIPTION
The NJU6356 series is a serial I/O real time clock suitable
for 4 bits microprocessor.
It contains quartz crystal oscillator, counter, shift register,
voltage regulator, voltage detector and interface controller.
The NJU6356 series required only 4-port of microprocessor
for data transfer, and the microprocessor can receive the data
at any time when the microprocessor requires.
The operating voltage is as wide as 2.0V to 5.5V,
consequently, the NJU6356 series can count accurate time
data even if the back up period.
Furthermore, the long time back up is available as the
operating current during the back up period is less than
3uA(TYP).
sPACKAGE OUTLINE
NJU6356ED
NJU6356EM
sFEATURES
qLow Operating Voltage
2.0 to 3.6V
qLow Operating Current
3.0uA (TYP) @2.0V
3.0uA (TYP) @3.0V
4.0uA (TYP) @5.0V
qBCD Counts of Seconds, Minutes, Hours, Days of Week
Day, Month and Year
qRequired only 4-port
DATA, CLK, CE and I/O
qLow Battery Detector
Low Voltage Alarm Signal Output
qAutomatic Leap Year Compensation
Up to AD 2099
qPackage Outline
DIP8 / DMP8
qC-MOS Technology
sPIN CONFIGURATION
I/O
XT
XT
VSS
VDD
DATA
CLK
CE
sLINE-UP TABLE
Type No.
Output Data
Oscillation Capacitor
NJU6356 E Seconds, Minutes, Hours, Days of Week, Day, Month, Year Cd=21pF / Cg=21pF on Chip
sBLOCK DIAGRAM
XT
Oscillator
XT
Divider
Sec. Min.
Timer Counter
Hr.
Days of
W eek
Day
Month
Year
Sec. Min.
Hr.
Days of
W eek
Day
Shift Register
Month
Year
DATA
VSS
VDD
Controller
&
Voltage Detector
Clock Counter
I/O
CLK
CE
-1-