NJU6680 데이터 시트보기 (PDF) - Japan Radio Corporation
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NJU6680 Datasheet PDF : 56 Pages
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NJU6680
• MPU Interface Circuits
No.
Terminal
Description
26
PS0
Parallel or serial interface select terminal
30
PS1
PS0=”L”, PS1=”L”: 3-line serial
PS0=”L”, PS1=”H”: 4-line serial
PS0=”H”, PS1=”L”: 80 type MPU parallel interface
PS0=”H”, PS1=”H”: 68 type MPU parallel interface
34
CS
Chip select terminal
Active “L”
56-49
39
D7-D0
RS
Data bus terminals
Parallel interface: D7 to D0
Serial interface: SI (D7 terminal), SCL (D6 terminal)
Register select terminal
• This signal distinguishes instruction data or display data when the LSI is used in
the 4-line serial or parallel interface mode.
RS=”H”: D7 to D0 are Display data
RS=”L”: D7 to D0 are Instruction data
44
E
68 type MPU: Active “H”
(RD)
80 type MPU: Active “L”
40
R/W 68 type MPU:
(WR)
R/W=“H”: Read operation
R/W=“L”: Write operation
80 type MPU: Active “L”
35
RES Reset terminal
Active “L”
88
OSC1 OSC terminal
• When the internal oscillator is used, the external resistor, Rf, is required between
this terminal and the VDD.
Rf=270kΩ: Frame frequency=165Hz (typ.)
• LCD drivers
No.
Terminal
182-155,
138-103,
COM0
--
311-338, COM127
355-390
182-310
SEG0
--
SEG127
Common (row) drivers
COM0-COM127
Segment (column) drivers
SEG0-SEG127
Description
• Dummy
No.
1-18,
89-98,
100,102
139-154,
339-354,
391,393
Terminal
DUMMY1
--
DUMMY64
Description
No connections. Dummy pads
• Test terminals
No.
Terminal
22,99,
101,392,
TEST1
--
394
TEST5
Description
No connections. Used for maker test
Ver.2003-04-08
-9-
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