NJU6350 Datasheet, PDF (1/9 Pages) New Japan Radio – SERIAL I/O REAL TIME CLOCK

NJU6350
SERIAL I/O REAL TIME CLOCK
s GENERAL DESCRIPTION
s PACKAGE OUTLINE
The NJU6350 is a serial I/O Real Time Clock suitable for
4 bits micro-processor.
It contains quartz crystal oscillator, counter, shift register,
voltage regulator, voltage detector, and interface controller.
The NJU6350 required only 3-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 NJU6350 can count accurate time data
even if the back up period.
Furthermore, the long time back up is available as the
current consumption during the back up period is less than
2µA.
NJU6350R
NJU6350C
s FEATURES
q Operating Voltage
: 3.0V ± 20%
2.0V to 5.5V ( The clock operation )
q Low operating current : 0.8 µA ( Typ. ) at 2.0V
2.0 µA ( Max. ) at 2.0V
q BCD Counts of Seconds, Minutes, Hours, Days of Week,
Date, Month and Year
q Required only 3-port ( DATA, CLK and CE )
q Low Battery Detector ( Low voltage alarm signal output )
q Automatic Leap Year Compensation : Up to AD 2099
q Package Outline
: VSP 8 / Chip
q C-MOS Technology
s PIN CONFIGURATION
F_OUT 1
XT ²
XT ³
V_SS 4
8 X_DD
7 _DATA
6 CLK
5 CE