MD-MS200W/MD-MS200/MD-MS200H
– 45 –
1*-4*
NC
—
Be sure to use this terminal in OPEN state so as to get more stable connected inside,
and is the low truth line drawing oscillation.
5
FOE
Input
When this terminal is on H level, frequency selected by the FSEL terminal is output from
the FOUT terminal. When this terminal is on L level, the FOUT terminal is set to high-
impedance.
6
WR
Input
DATA terminal input/output selection terminal
H level: Data input (RTC write)
L level: Data output (RTC read)
7
FSEL
Input
Frequency to be output from the FOUT terminal is selected.
H level: 1 Hz
L level: 32.768 kHz
8
CE
Input
Chip enable input terminal
H level: Enable
When this terminal is on L level, the DATA terminal is set to high-impedance state, and
the CLK, DATA, and WR terminals are set to input reception disabled state. When this
terminal is on L level, TM bit is cleared.
9
GND
—
To be connected to the negative (ground) side of power supply.
10
FOUT
Output
Frequency selected by the FSEL terminal is output. 1 Hz output is synchronized with
internal 1 sec signal. This terminal is not affected by the CE terminal.
11
DATA
In/Output
Input/output terminal to be used for data writing and reading
12
CLK
Input
Serial clock input terminal.
At the rise edge data is input in write mode but in read mode data is output.
13*
NC
—
Be sure to use this terminal in OPEN state so as to get more stable connected inside,
and is the low truth line drawing oscillation.
14
VDD
—
To be connected to the positive side of power supply.
15*-18*
NC
—
Be sure to use this terminal in OPEN state so as to get more stable connected inside,
and is the low truth line drawing oscillation.
IC406 VHiRTC4543B-1 (RTC4543B):Rialtime Clock
Pin No.
Terminal Name
Function
Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
