NJU6356EM 데이터 시트보기 (PDF) - Japan Radio Corporation
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NJU6356EM Datasheet PDF : 6 Pages
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NJU6356
sTREMINAL DESCRIPTION
No. SYMBOL
FUNCTION
I/O
Input/Output Select Terminal for DATA Terminal
1
"H" : Input, "L" : Output
During the CE terminal is "L", the DATA terminal is high impedance.
2
XT
Quartz Crystal Connecting Terminal (f=32.768kHz)
3
XT
Refer to the line-up table for internal Cg, Cd value.
Chip Enable Input Terminal (with Pull-down Resistance)
"H" : DATA input/output is available.
5
CE
"L" : DATA terminal is high impedance.
When the CE signal is which rising edge or falling edge,
the CLK signal should be fixed to "L".
Clock Input Terminal
6
CLK
The DATA input/output is synchronized this clock.
When the CE terminal is "L" the DATA terminal is high impedance.
Serial Timer Data Input/Output Terminal
I/O CE
DATA
7 DATA
H
H
L
H
Input
Output
H
L High Impedance
L
L High Impedance
8
VDD
Power Supply
4
VSS
GND
sFUNCTIONAL DESCRIPTION
1. Timer Data Structure
The NJU6356 using BCD code which consisting of 4 bits per 1 digit. The calender function including the last
date of each month and the leap year calculation is executed automatically. The unused bit for the timer data is
“0”.
Timer Data Bit Map
Second
MSB
LSB Range
0 S6 S5 S4 S3 S2 S1 S0 0 to 59
Minute
0 m6 m5 m4 m3 m2 m1 m0 0 to 59
Hour
0 0 H5 H4 H3 H2 H1 H0 0 to 23
Days of Week
0 W2 W1 W0 1 to 7
Day
0 0 D5 D4 D3 D2 D1 D0 1 to 31
Month
0 0 0 M4 M3 M2 M1 M0 1 to 12
Year
Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 0 to 99
-2-
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