16x2 LCD Module

16x2 LCD module
16x2 LCD module ADM1602H
Model No. ADM1602H
►16x2 LCD module
►Character LCD

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Product Details

16x2 LCD module

16x2 LCD module ADM1602H

Model No. ADM1602H

►16x2 LCD module

►Character LCD

►5 x 8 dots includes cursor

►Built-in controller ST7066

►5V/3.0V power supply

►1/16 duty cycle

Description of 16x2 LCD module ADM1602H

An LCD is an electronic display module which uses liquid crystal to produce a visible image. The 16x2 LCD module is a very basic module commonly used in DIYs and circuits. The  16x2 LCD module translates o a display 16 characters per line in 2 such lines. In this LCD each character is displayed in a 5×7 pixel matrix.

Features

1.5x8 dots

2.Built-in controller (ST7066 or equivalent)

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

4.1/16 duty cycle

5.Easy interface with 4-bit or 8-bit MPU

6.BKL to be driven by pin1, pin2, or pin15, pin16 or A, K

7.16x2 characters

Outline dimension

1.jpg

Absolute maximum ratings

Item

Symbol

Standard

Unit

Power voltage

VDD-VSS

-0.3

-

7.0

V

Input voltage

VIN

-0.3

-

VDD+0.3

Operating temperature range

Top

0

-

+50

Storage temperature range

Tst

-10

-

+60

Block diagram

2.jpg

Interface pin description

Pin no.

Symbol

External connection

Function

1

VSS

Power supply

Signal ground for LCM (GND)

2

VDD

Power supply for logic for LCM

3

V0

Contrast adjust

4

RS

MPU

Register select signal

5

R/W

MPU

Read/write select signal

6

E

MPU

Operation (data read/write) enable signal

7~10

DB0~DB3

MPU

Four low order bi-directional three-state data bus lines.
Used for data transfer between the MPU and the LCM.
These four are not used during 4-bit operation.

11~14

DB4~DB7

MPU

Four high order bi-directional three-state data bus lines.
Used for data transfer between the MPU

15

(A)LED+

LED BKL power supply

Power supply for BKL(Anode)

16

(K)LED-

Power supply for BKL (GND)

Contrast adjust

3.jpg

VDD~V0: LCD Driving voltage

VR: 10k~20k

Optical characteristics

TN type display module (Ta=25℃, VDD=5.0V)

Item

Symbol

Condition

Min.

Typ.

Max.

Unit

Viewing angle

θ

Cr≥4

-25

-

-

deg

Φ

-30

-

30

Contrast ratio

Cr


-

6

-

-

Response time (rise)

Tr

-

-

120

150

ms

Response time (fall)

Tr

-

-

120

150

STN type display module (Ta=25℃, VDD=5.0V)

Item

Symbol

Condition

Min.

Typ.

Max.

Unit

Viewing angle

θ

Cr≥2

-60

-

35

deg

Φ

-40

-

40

Contrast ratio

Cr


-

8

-

-

Response time (rise)

Tr

-

-

200

250

ms

Response time (fall)

Tr

-

-

300

350

Electrical characteristics

DC characteristics

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Unit

Supply voltage for LCD

VDD-V0

Ta =25℃

-

4.5

-

V

Input voltage

VDD


4.7

-

5.5

Supply current

IDD

Ta=25℃, VDD=5.0V

-

1.5

2.5

mA

Input leakage current

ILKG


-

-

1.0

uA

“H” level input voltage

VIH


2.2

-

VDD

V

“L” level input voltage

VIL

Twice initial value or less

0

-

0.6

“H” level output voltage

VOH

LOH=-0.25mA

2.4

-

-

“L” level output voltage

VOL

LOH=1.6mA

-

-

0.4

Backlight supply voltage

VF


-

-

-

Read cycle (Ta=25℃, VDD=5.0V)

Parameter

Symbol

Test pin

Min.

Typ.

Max.

Unit

Enable cycle time

tc

E

500

-

-

ns

Enable pulse width

tw

230

-

-

Enable rise/fall time

tr, tf

-

-

20

RS; R/W setup time

tsu

RS; R/W

40

-

-

RS; R/W address hold time

th

10

-

-

Data output delay

td

DB0~DB7

-

-

120

Data hold time

tdh

5

-

-

Write cycle (Ta=25℃, VDD=5.0V)

Parameter

Symbol

Test pin

Min.

Typ.

Max.

Unit

Enable cycle time

tc

E

500

-

-

ns

Enable pulse width

tw

230

-

-

Enable rise/fall time

tr, tf

-

-

20

RS; R/W setup time

tsu1

RS; R/W

40

-

-

RS; R/W address hold time

th1

10

-

-

Data output delay

tsu2

DB0~DB7

80

-

-

Data hold time

th2

10

-

-

4.jpg

FAQ

1.Character or alphanumeric LCDs: Character or alphanumeric LCDs: Character displays allow the customer to easily interface with their product. They contain a built in controller/driver combination that displays letters, number and punctuation marks.These displays are available in many standard configurations such as 8x1, 16x2, 20x2, 40x4 and many others. MOQ’s for a custom character LCD can be as low as 200 displays per build.

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

5.jpg

3.How does Amotec guranteed the quality?

Answer: Amotec has passed ISO9001:2008 certification. ISO principle is carried out in daily activities. The quality is strictly controlled in designing, material incoming, production process, equipment, management and checking and the rejects are not allowed to flow at any circumstances.

4.What is STN LCD ?

A super-twisted nematic display (STN) is a type of monochrome passive-matrix liquid crystal display (LCD).Standard twisted nematic (TN) LCDs with a 90 degrees twisted structure of the molecules have a contrast vs. voltage characteristic unsuitable for passive-matrix addressing as there is no distinct threshold voltage. STN displays, with the molecules twisted from 180 to 270 degrees, have superior characteristics.

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