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PDF NT7704 Data sheet ( Hoja de datos )
| Número de pieza | NT7704 | |
| Descripción | 240 Output LCD Segment/Common Driver | |
| Fabricantes | Novatek | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NT7704 (archivo pdf) en la parte inferior de esta página. Total 40 Páginas | ||
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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
1 page  
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VDD
NT7704
VSS VDD
VSS
Control Signal
Input Signal
Output Signal
I/O
Control Signal
Applicable Pins
VSS EIO1, EIO2
Input / Output Circuit
V0 V12
Control Signal 1
O
Control Signal 3
Control Signal 2
Control Signal 4
Applicable Pins
Y1 to Y240
V43 VSS V5
LCD Driver Output circuit
5
5 Page 
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NT7704
3. Relationship between the Display Data and Driver Output pins
3.1. Segment Mode:
(a) 4-bit Parallel Mode
MD L/R
EIO1
EIO2
Data
Input
60clock
59clock
Number of Clock
58clcok
~
3clock
D0
D1
H L Output Input
D2
D3
D0
D1
H H Input Output
D2
D3
Y1
Y2
Y3
Y4
Y240
Y239
Y238
Y237
Y5
Y6
Y7
Y8
Y236
Y235
Y234
Y233
Y9
Y10
Y11
Y12
Y232
Y231
Y230
Y229
~ Y229
~ Y230
~ Y231
~ Y232
~ Y12
~ Y11
~ Y10
~ Y9
(b) 8-bit Parallel Mode
MD L/R
EIO1
EIO2
Data
Input
30clock
D0 Y1
D1 Y2
D2 Y3
D3 Y4
L L Output Input
D4 Y5
D5 Y6
D6 Y7
D7 Y8
D0 Y240
D1 Y239
D2 Y238
D3 Y237
L H Input Output
D4 Y236
D5 Y235
D6 Y234
D7 Y233
29clock
Y9
Y10
Y11
Y12
Y13
Y14
Y15
Y16
Y232
Y231
Y230
Y229
Y228
Y227
Y226
Y225
Number of Clock
28clcok
~
3clock
Y17 ~ Y217
Y18 ~ Y218
Y19 ~ Y219
Y20 ~ Y220
Y21 ~ Y221
Y22 ~ Y222
Y23 ~ Y223
Y24 ~ Y224
Y224 ~ Y24
Y223 ~ Y23
Y222 ~ Y22
Y221 ~ Y21
Y220 ~ Y20
Y219 ~ Y19
Y218 ~ Y18
Y217 ~ Y17
2clock
Y233
Y234
Y235
Y236
Y8
Y7
Y6
Y5
2clock
Y225
Y226
Y227
Y228
Y229
Y230
Y231
Y232
Y16
Y15
Y14
Y13
Y12
Y11
Y10
Y9
1clock
Y237
Y238
Y239
Y240
Y4
Y3
Y2
Y1
1clock
Y233
Y234
Y235
Y236
Y237
Y238
Y239
Y240
Y8
Y7
Y6
Y5
Y4
Y3
Y2
Y1
11
11 Page | ||
| Páginas | Total 40 Páginas | |
| PDF Descargar | [ Datasheet NT7704.PDF ] | |
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