Datasheet

NT7603
4 V2.3
Pad Description
(Total 166 pads for COG type)
Pad No. Designation I/O
External
Connection
Description
1 - 15 GND
P Power supply
GND: 0V
16 OSC1 I For external clock operation, clock inputs to OSC1
17 OSC2 O Clock output
18 V1 P
Power supply
Power supply for LCD driver. V
DD
≥
V1
≥
V2
≥
V3
≥
V4
≥
V5
≥
GND
19 V2 P
Power supply
Power supply for LCD driver
20 V3 P
Power supply
Power supply for LCD driver
21 V4 P
Power supply
Power supply for LCD driver
22 - 25 V5 P
Power supply
Power supply for LCD driver
26, 28
OPT_R0,
OPT_R1
I ITO Option
The built-in bias resister select:
OPT_R1, OPT_R0: No ITO = 1. ITO on = 0
1, 1: 2.2K
Ω
; 1, 0: 4K
Ω
;
0, 1: 6.8K
Ω;
0, 0:No built-in bias resistor
29 - 43 V
DD
P Power supply V
DD
: +5V
44, 45 RS I MPU
Register select signal
0: Instruction register (write), Busy flag, address counter (read)
1: Data register (write, read)
46, 47 R/W I MPU
Read/Write control signal
0: Write 1: Read
48, 49 E I MPU
Read/Write start signal
50, 51 DB0
52, 53 DB1
54, 55 DB2
56, 57 DB3
I/O MPU
Lower 4 tri-state bi-directional data bus for transmitting data
between MPU and NT7603. Not used during 4-bit operation.
58, 59 DB4
60, 61 DB5
62, 63 DB6
64, 65 DB7
I/O MPU
Higher 4 tri-state bi-directional data bus for transmitting data
between MPU and NT7603. DB7 is also used as a busy flag.
66 OPT_LCD I ITO Option
No ITO. (Option = 1): B-Type waveform
ITO On. (Option = 0): A-Type waveform
68 TESTD O Test output Test data output. (No connect for user)
164 - 157 COM1 - 8 O LCD panel
69 - 76, COM9 - 16 O LCD panel
Common signal output pins, for place on the upper glass
(IC face up)
156 - 77 SEG1 - 80 O LCD panel Segment signal output pins
165 TEST I Test pin Test pin (internal pull down) (No connection for user)
166 TESTM O Test output
LCD driver clock output. (No connection for user)
67, 27 GND_OUT P GND output pin, used for pull-down ITO option