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NT7704 Datasheet Preview

NT7704 Datasheet

240 Output LCD Segment/Common Driver

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NT7704
240 Output LCD Segment/Common Driver
Features
(Segment mode)
! Shift Clock frequency:
20 MHz (Max.) (VDD = 5 V ± 10%)
12 MHz (Max.) (VDD = 2.5V - 4.5V)
! 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 "chip select" mode,
which 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 Y240
Single mode
2. Y240 Y1
Single mode
3. Y1 Y120, Y121 Y240 Dual mode
4. Y240 Y121, Y120 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: Gold bump die / 272 Pin TCP(Tape Carrier
Package)
! Not designed or rated as radiation hardened
General Description
The NT7704 is a 240-bit output segment/common driver LSI
suitable for driving large scale dot matrix LCD panels used
by PDA's, personal computers and work stations for
example. Through the use of COG technology, it is ideal for
substantially decreasing the size of the frame section of the
LCD module. The NT7704 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
NT7704. 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
UY Y Y Y Y
M2 2 2 2 2
M4 3 3 3 3
Y0 9 8 7 6
272 271 270 269 268
YYYYYY
111111
222211
321098
155 154 153 152 151 150
D
U
M
YYYYYM
5 4 3 2 1Y
37 36 35 34 33
NT7704
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 DDDD DD DD X D L E F L MN V N V V V V V D
U0 0 1 4 5 SD / I 0 1 2 3 4 5 6 7C I P I R / DCSC 5 4 1 0 0 U
ML L 2 3 L SDCO
KS O R
S R3 2 RRM
M LL
2
P1
RR
M
Y OY
F
F
1
V1.0




Novatek

NT7704 Datasheet Preview

NT7704 Datasheet

240 Output LCD Segment/Common Driver

No Preview Available !

www.datasheet4u.com
Pad Configuration
432
x
433
448
ALK_L
1
Block Diagram
NT7704
Dummy Pad
V0R V12R V43R V5R
Y1 Y2
Y239 Y240
FR
DISPOFF
EIO1
EIO2
LP
XCK
L/R
MD
S/C
Level
Shifter
Active
Control
Control
Logic
240 Bits 4 Level Driver
/240
240 Bits Level Shifter
/240
240 Bits Line Latch/Shift Register
/16 /16
8Bits2
Data
Latch
/16
/16 /16
Data Latch Control
/8
SP Conversion & Data Control
(4 to 8 or 8 to 8)
D0 D1 D2 D3 D4 D5 D6 D7
VDD
VSS VSS
NT7704
225
x
224
ALK_R
208
209
V5L
V43L
V12L
V0L
2


Part Number NT7704
Description 240 Output LCD Segment/Common Driver
Maker Novatek
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NT7704 Datasheet PDF






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