Graphic LCD Pannel

Graphic LCD Pannel

Graphic LCD pannel
Graphic LCD pannel ADM12232A
Model No. ADM12232A
►Graphic LCD panel 122x32, Display LCD 122x32
►Monochrome Graphic LCD

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Product Details

Graphic LCD pannel

Graphic LCD pannel ADM12232A

Model No. ADM12232A

►Graphic LCD panel 122x32, Display LCD 122x32

►Monochrome Graphic LCD

►Built-in controller (S1D15200 DOA or equivalent)

►+5V power supply

►1/32 duty cycle

Description of Graphic LCD pannel ADM12232A

Graphic LCD pannel ADM12232A requires very low-power . This graphic LCD panel is visible in most lighting situations, including normal office lighting up to bright sunlight. This graphic LCD panel is well suited for low-power hand-held devices that are normally used in well-lit environments.

Features

1.122x32 dots

2.Built-in controller (S1D15200 DOA or equivalent)

3.+5V power supply (also available for =3.0V)

4.1/32 duty cycle

5.BKL to be driven by pin17, pin18

Outline dimension

1.jpg

Description Of Terminals

Pin
No.

Pin Name

Input/ Output

External
Connection

Function

1

VSS


Power
 Supply

Signal ground for LCM

2

VDD

VDD: +5V

3

VO

VLCD adjustment

4

RST

output

MPU

Reset signal

5

E1

Input

MPU

Chip enable active “L”, SEG(1~61)

6

E2

Input

MPU

Chip enable active “L”, SEG(62~122)


7


R/W


Input


MPU

Read/write select signal
“0” for writing, “1” for reading


8



A0


Input



MPU

Register select input
“0”:Instruction register (when writing)
Busy flagaddress counter (When reading)
“1”:Data register (when writing & reading)


9
 /
 12



DB0-DB3



Input/output



MPU

Low-order lines of data bus with 3-state, bi-directional function for use in data
transaction with the MPU. These lines are not used when interfacing with a 4-bit microprocessor.


13
 /
 16


DB4-DB7


Input/output


MPU

High-order lines of data bus with 3-state,
bi-directional function for use in data transactions with the MPU. DB7 may also be used to check the busy flag.

17

A

Input


LED+

18

K

Input


LED- 0V

DC Electrical Characteristics

Parameter

Symbol

Conditions

Min.

Type

Max.

Unit

Supply voltage for LCD

VDD-VO

TA=25℃

4.6

V

Input voltage

VDD


3

5.5

V

Supply current

IDD

VDD=5.0V;TA=25℃

1.5

mA

Input leakage current

ILKG


1.0

μA

“H” level input voltage

VIH


2.2

VDD

V


“L” level input voltage


VIL

Twice initial value or less


0


0.6


V

“H” level output voltage

VOH

LOH=0.25mA

2.4

V

“L” level output voltage

VOL

LOL=1.6mA

0.4

V

4.jpg

Graphic LCD panel

A graphic LCD has a regular array of dots, that can be turned on in any pattern to show any image, letters, numbers, or symbols. Graphic LCD panel offers the most flexibility, but take more computing power, since every single dot has to be managed.

The current generation of embedded microcontrollers is quite powerful though, and most can easily handle the extra load of a graphic LCD.

A graphic LCD is the best solution to assure that you have future flexibility in your user interface design.

FAQ:

1.Is LCD panel viewable in dark environments without an external light source or backlight ?

No, it isn’t.

2.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.

Figure 3: Difference between parallel and serial interfaces

2.jpg

3.What is a PCB board?

Printed circuit board is the most common name but may also be called “printed wiring boards” or “printed wiring cards”. Before the advent of the PCB circuits were constructed through a laborious process of point-to-point wiring.PCB is an acronym for printed circuit board. It is a board that has lines and pads that connect various points together.

4. How does PCB work ?

PCB allows signals and power to be routed between physical devices. Solder is the metal that makes the electrical connections between the surface of the PCB and the electronic components. Being metal, solder also serves as a strong mechanical adhesive.

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