Chip on Glass for LCD Module

chip on glass for LCD module
chip on glass for LCD module ADG12864A14
Model No. ADG12864A14
►128x64 COG display
►Graphic LCD

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Product Details

chip on glass for LCD module

chip on glass for LCD module ADG12864A14

Model No. ADG12864A14

►128x64 COG display

►Graphic LCD

►Built-in controller ST7565R-G

►5V power supply

►1/65 Duty, 1/9 Bias

►Interface : Parallel and Serial Interface MPU

Description of chip on glass for LCD module ADG12864A14

Controlled directly by software,ADG12864A14 is a chip on glass for LCD module. All control electronics, contrast control and bias circuits and temperature compensation circuits are built into the module. The chip on glass for LCD module technology is very suitable for the applications that demand more compact package displays.

1. FEATURES

The features of LCD are as follows

* Display mode : STN, Positive, Transmissive

* Color : Display dot : Blue

Background: Yellow-Green

* Display Format : 128 Dots × 64 Dots graphic

* IC : Sitronix ST7565R-G

* Interface Input Data : Parallel and Serial Interface MPU

* Driving Method : 1/65 Duty, 1/9 Bias

* Viewing Direction : 6 O’clock

* Backlight : N/A

2. MECHANICAL SPECIFICATIONS

Item

Specification

Unit

Module Size

57.6(W) X 42.5(H) X2.8MAX(T)

mm

Viewing Area

54.2MIN(W) X 32.5MIN(H)

mm

Effective Display Area

47.965(W) X26.525(H)

mm

Number of Dots

128 X 64 Dots

-

Dot Size

0.34 (W) X 0.38(H)

mm

Dot Pitch

0.38(W) X 0.41(H)

mm

3. ELECTRICAL SPECIFICATIONS

3-1. Absolute Maximum Ratings (Vss=0V)

Item

Symbol

Standard Value

Unit

Min.

Typ.

Max.

Supply Voltage For Logic

VDD

0.3

-

5.0

V

Supply Voltage For LCD Drive

V0, VOUT

0.3

-

18.0

V

Operating Temp.

TOP

-20

-

+70

°C

Storage Temp.

TST

-30

-

+80

°C

Static Electricity

Be sue that you are ground when handing LCM

3. ELECTRICAL SPECIFICATIONS (Continued)

3-2-1.Electrical Characteristics

Item

Symbol

Test
Condition

Min.

Typ.

Max.

Unit

Supply Voltage For Logic

VDD - VSS

-

2.7

3.0

3.3

V

Supply Voltage For LCD

V0-Vss

TA=25℃

7.8

8.00

8.2

V

Input Voltage

“H” Level

V IH

-

0.8VDD

-

VDD

V

“L” Level

V IL

VSS

-

0.2VDD

V

Output Voltage

“H” Level

V OH

IOUT= -0.5mA

0.8VDD

-

VDD

V

“L” Level

V OL

IOUT= 0.5mA

VSS

-

0.2VDD

V

Current Consumption

IDD

VIN = VDD

-

0.60

2.0

mA

NOTE: 1) Duty ratio=1/65, Bias=1/9  2) Measured in Dots ON-state

4. ELECTRO – OPTICAL CHARACTERISTICS

Item

Symbol

Temp.

Min.

Typ.

Max.

Unit

Conditions

Note

Viewing
Angle

Θ2 –Θ1

25℃

30

80

-

Deg.

-

1,2

Φ

60

90

-

Contrast
Ratio

Cr

25℃

2

8

--

25℃

Θ=0°
Φ=0°

3

Response
Time(rise)

Tr

70℃

-

30

150

ms

Θ=0°
Φ=0°

4

25℃

-

65

250

-20℃

-

1750

2500

Response
Time(fall)

Tf

70℃

-

55

150

ms

Θ=0°
Φ=0°

4

25℃

-

120

250

-20℃

-

5840

6700

Note1. Definition of Angle Θ&Φ

Note2. Definition of Viewing Angle Θ1&Θ2

1(001).jpg

2(001).jpg

Note3 . Definition of Contrast Cr

Note4. Definition of Optical Response

3(001).jpg

4(001).jpg

5. Interface Pin Function

Pin NO.

Symbol

I / O

Functions

1

VDD

Power
Supply

Power supply

2

PSB

I

This is the parallel data input/serial data input switch terminal.

3

C86

I

This is the MPU interface switch terminal.

4

NC

 

No connection.

5~9

V0~V4

Power
Supply

This is a multi-level power supply for the liquid crystal drive.

10

CAP2N

O

DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2P terminal.

11

CAP2P

O

DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2N terminal.

12

CAP1P

O

DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal.

13

CAP1N

O

DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1P terminal.

14

CAP3P

O

DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal.

15

VOUT

O

DC/DC voltage converter. Connect a capacitor between this terminal and vss or  VDD

16

VSS

Power
Supply

Ground

17

VDD

Power
Supply

Power supply

18~25

D7~ D0

I/O

This is an 8-bit bi-directional data bus that connects to an 8-bit or 16-bit standard MPU data bus.

26

/RD(E)

I

The data bus is in output status when this signal is “L”

27

/WR(R/W)

I

The data bus are latched at the rising edge of the WR signal

28

A0

I

This is connect to the least significant bit of the Norman MPU address bus, and it determines whether the data bits are data or a command.

29

/RES

I

When RES is set to “L”, the setting are initialized.

30

/CS1

I

This is the chip select signal.

OUTLINE DIMENTION

4.jpg

FAQ

1.What is a serial interface? 

A serial interface is a communication interface between two digital systems that transmits data as a series of voltage pulses down a wire. A "1" is represented by a high logical voltage and a "0" is represented by a low logical voltage. Essentially, the serial interface encodes the bits of a binary number by their "temporal" location on a wire rather than their "spatial" location within a set of wires. Encoding data bits by their "spatial" location is referred to as a parallel interface and encoding bits by their "temporal" location is referred to as a serial interface. Figure 3 graphically illustrates the difference between these two communication methods.

2.What are FSTN and FFSTN (DFSTN) ?

• STN – Film compensated STN, Formulated STN or Filtered STN. A passive matrix LCD technology that uses a film compensating layer between the STN display and rear polarizer for added sharpness and contrast. It was used in laptops before the DSTN method became popular and many early 21st Century cellphones.

• FFSTN – Double film super-twist nematic

3.What are the Storage Precautions

In case of storing for a long period of time for the purpose of replacement use, the following ways are recommended.

(1) Storage in a polyethylene bag with the opening sealed so as not to enter fresh air outside in it, and with no desiccant.

(2) Placing in a dark place where neither exposure to direct sunlight nor light is, keeping temperature in the range from -30°C to 80°C

(3) Storing with no touch on polarizer surface by anything else. (It is recommended to store them as they have been contained in the inner container at the time of delivery from us.)

4.Safety

(1) It is recommended to crush damaged or unnecessary LCDs into pieces and wash them off with solvents such as acetone and ethanol, which should later be burned.(2) If any liquid leaks out of a damaged glass cell and comes in contact with the hands, wash off thoroughly with soap and water.

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