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PDF NT7701H-BDT Data sheet ( Hoja de datos )
| Número de pieza | NT7701H-BDT | |
| Descripción | 160 Output LCD Segment/Common Driver | |
| Fabricantes | ETC | |
| Logotipo |  |
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NT7701
160 Output LCD Segment/Common Driver
Features
(Segment mode)
! Shift Clock frequency :
14 MHz (Max.) (VDD = 5V ± 10%)
8 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 the chip select
mode, causes the internal clock to be stopped by
automatically counting 160 bits of input data
(Common mode)
! Shift clock frequency:
4.0MHz (Max.)
! Built-in 160-bits bidirectional shift register (divisible into
80-bits x 2)
! Available in a single mode (160-bits shift register) or in a
dual mode (80-bits shift register x 2)
1. Y1 → Y160
Single mode
2. Y160 → Y1
Single mode
3. Y1 → Y80, Y81 → Y160
Dual mode
4. Y160 → Y81, Y80 → Y1
Dual mode
The above 4 shift directions are pin-selectable
(Both segment mode and common mode)
! Supply voltage for LCD drive: 15.0 to 30.0V
! Number of LCD driver outputs: 160
! Low output impedance
! Low power consumption
! Supply voltage for the logic system: +2.5 to +5.5V
! COMS process
! Package : 190pin TCP (Tape Carrier Package)
! Not designed or rated as radiation hardened
General Description
The NT7701 is a 160-bit output segment/common driver LSI
suitable for driving the large scale dot matrix LCD panels
used by PDA's, personal computers and work stations for
example. 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 NT7701 is good
as both a segment driver and a common driver, and a low
power consuming, high-precision LCD panel display can be
assembled using the NT7701. In the segment mode, the
data input is selected 4bit parallel input mode or as 8bit
parallel input mode by a mode (MD) pin. In common mode,
the data input/output pins are bi-directional and the four data
shift directions are pin-selectable.
Pin Configuration
DD
UU Y Y Y Y Y Y
MM 1 1 1 1 1 1
MM 6 5 5 5 5 5
YY 0 9 8 7 6 5
190 189 188 187 186 185
YYYYYY
888877
321098
113 112 111 110 109 108
DD
UU
MM
Y Y Y Y Y YM M
6 5 4 3 2 1Y Y
36 35 34 33 32 31
NT7701
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
DV V VV V L V S EDDDDDDDDXD L E FMT T V V VV VD
U 0 1 4 5 S / D / I 0 1 2 3 4 5 6 7 C I P I RDEES 5 4 1OU
ML 2 3 L SRDCO
KS O
SSSR 3 2RM
M LL
2
P1
TT
RR M
Y
O 12
Y
F
F
1
V2.0
1 page  
Input / Output Circuits
VDD
NT7701
I
VSS
VDD
Input Circuit (1)
Input Signal
Applicable Pins
L/R, S/C, D0 - D6,
DISPOFF , LP, FR, MD
I Input Signal
Control Signal
Applicable Pins
D7, XCK
VSS
VSS
Input Circuit (2)
5
5 Page 
NT7701
2. LCD Driver Output Voltage Level
The relationship amongst the data bus signal, AC converted signal FR and LCD driver output voltage is as shown in the table
below:
2.1. Segment Mode
FR
Latch Data
DISPOFF
Driver Output Voltage Level (Y1 - Y160)
L LH
V43
L HH
V5
HLH
V12
HHH
V0
XXL
V5
Here, VSS ≤ V5 < V43 < V12 <V0, H: VDD (+2.5 to +5.5V), L: VSS (0V), X: Don't care
2.2. Common Mode
FR
L
L
H
H
X
Latch Data
L
H
L
H
X
DISPOFF
H
H
H
H
L
Driver Output Voltage Level (Y1 - Y160)
V43
V0
V12
V5
V5
Here, VSS ≤ V5 < V43 < V12 < V0, H: VDD (+2.5 to +5.5V), L: VSS (0V), X: Don't care
Note: There are two kinds of power supply (logic level voltage, LCD driver voltage) for the LCD driver. Please supply regular
voltage, which assigned by specification for each power pin.
That time "Don't care" should be fixed to "H" or "L", avoiding floating.
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet NT7701H-BDT.PDF ] | |
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