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NT7702 Datasheet

  • NT7702

  • 240 Output LCD Segment/Common Driver

  • 38頁

  • ETC

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NT7702
240 Output LCD Segment/Common Driver
Features
(Segment mode)
!
Shift Clock frequency:
20 MHz (Max.) (V
DD
= 5 V
鹵
10%)
!
Adopts a data bus system
!
4-bit/8-bit parallel input modes are selectable with a
mode (MD) pin
!
Automatic transfer function with an enable signal
!
Automatic counting function when in the chip select
mode, causes the internal clock to be stopped by
automatically counting 240 bits of input data
(Common mode)
!
Shift clock frequency :
4.0 MHz (Max.)
!
Built-in 240-bits bidirectional shift register (divisible into
120-bits x 2)
!
Available in a single mode (240-bits shift register) or in a
dual mode(120-bits shift register x 2)
1. Y1
鈫?/div>
Y240
Single mode
2. Y240
鈫?/div>
Y1
Single mode
3. Y1
鈫?/div>
Y120, Y121
鈫?/div>
Y240
Dual mode
4. Y240
鈫?/div>
Y121, Y120
鈫?/div>
Y1
Dual mode
The above 4 shift directions are pin-selectable
(Both for segment mode and common mode)
!
!
!
!
!
!
!
!
Supply voltage for LCD driver: 15.0 to 30.0 V
Number of LCD driver outputs: 240
Low output impedance
Low power consumption
Supply voltage for the logic system: +2.5 to +5.5 V
COMS process
Package: 272pin TCP (Tape Carrier Package)
Not designed or rated as radiation hardened
General Description
The NT7702 is a 240-bit output segment/common driver LSI
suitable for driving large scale dot matrix LCD panels using
as PDA/personal computers/work stations. Through the use
of SST (Super Slim TCP) technology, it is ideal for
substantially decreasing the size of the frame section of the
LCD module. The NT7702 is good as both a segment driver
and as a common driver, and a low power consuming, high-
precision LCD panel display can be assembled using the
NT7702. In the segment mode, the data input is selected as
4bit parallel input mode or as 8bit parallel input mode by a
mode (MD) pin. In the common mode, the data input/output
pins are bi-directional and the four data shift directions are
pin-selectable.
Pin Configuration
D
U
M
M
Y
Y
2
4
0
Y
2
3
9
Y
2
3
8
Y
2
3
7
Y
2
3
6
Y
1
2
3
Y
1
2
2
Y
1
2
1
Y
1
2
0
Y
1
1
9
Y
1
1
8
Y
5
Y
4
Y
3
Y
2
Y
1
D
U
M
M
Y
272 271 270 269 268
155 154 153 152 151 150
37 36 35 34 33
NT7702
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
D V V V V V V V S E D D D D D D D D X D L E F L M N V N V V V V V D
U 0 0 1 4 5 S D / I 0 1 2 3 4 5 6 7 C I P I R / D C S C 5 4 1 0 0 U
M L L 2 3 L S D C O
K S
O
R
S
R 3 2 R R M
M
L L
2
P
1
R R
M
Y
O
Y
F
F
1
V1.0

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