NJU6676CH 데이터 시트보기 (PDF) - Japan Radio Corporation
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NJU6676CH
Japan Radio Corporation
NJU6676CH Datasheet PDF : 46 Pages
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No.
16
15
71
72
2
3
69
68
NJU6676
PRELIMINARY
Symbol
RD
(E)
WR
(R/W)
Description
<In case of 80 Type MPU> RD signal of 80 type MPU input terminal.
Active "L" During this signal is "L" , D0 to D7 terminals are output. <In
case of 68 Type MPU> Enable signal of 68 type MPU input terminal.
Active "H"
<In case of 80 Type MPU> Connect to the 80 type MPU WR signal. Actie
"L". The data on the data bus input syncronizing the rise edge of this
signal. <In case of 68 Type MPU> The read/write control signal of 68
type MPU input terminal.
R/W
H
L
State
Read
Write
C86 MPU interface type selection terminal.
C86
H
L
State 68 Type
80 Type
P/S
OSC1
OSC2
CLS
M/S
Serial or parallel interface selection terminal.
P/S Chip Select Data/Command Data Read/Write
Serial
Clock
“H” CS1, CS2
A0
D0∼D7 RD,WR
-
“L” CS1, CS2
A0
SI(D7) Write Only SCL(D6)
RAM data and status read operation do not work in mode of
the serial interface. In case of the serial interface (P/S="L"),RD and WR
must be fixed "H" or "L", and D0 to D5 are high impedance.
System clock input terminal for Maker testing.(This terminal should be
Open) For external clock operation, the clock shoud be input to OSC1
terminal.
Terminal to select whether or enable or disable the display clock internal
oscillator circuit.
CLS=”H” : Internal oscillator circuit is enabld
CLS=”L” : Internal oscillator circuit is disabled (requires external input)
When CLS=”L”, input the display clock through the CL terminal.
This terminal selects the master/slave operation for the NJU6676. Master
operation outputs the timing signals that are required for the LCD display,
while slave operation inputs the timing signals required for the LCD,
synchronizing the LCD system.
M/S = ”H” : Master operation
M/S = ”L” : Slave operation
The following is true depending on the M/S and CLS status:
M/S CLS
OSC.
Power Supply
Circuit
CL
FR FRS DOF
“H”
“H” Available
“L” Not Avail.
Available
Available
Output Output Output Output
Input Output Output Output
“L” * Not Avail. Not Avail. Input Input Output Input
*:Don’t Care
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