NT7704 Datasheet, PDF(1/40 Page) List of Unclassifed Manufacturers

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NT7704 Datasheet, PDF (1/40 Pages) List of Unclassifed Manufacturers – 240 Output LCD Segment/Common Driver

NT7704

240 Output LCD Segment/Common Driver

Features

(Segment mode)

! Shift Clock frequency:

20 MHz (Max.) (VDD = 5 V Â± 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 â Y240

Single mode

2. Y240 â Y1

Single mode

3. Y1 â Y120, Y121 â Y240 Dual mode

4. Y240 â Y121, Y120 â 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

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

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

V1.0

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