LM24080BCW-3

LM24080BCW-3

LCD Module User Manual

Prepared by:

Checked by:

Approved by:

Liuweilin

Date: 2012-04-07

Date:

Rev. Descriptions

Release Date

0.1

New release

2010-04-01

0.2

Revise Backlight power supply on 3.2 LED Backlight Circuit

2010-04-16

0.3

Update Interfacing Setting

2012-04-07

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Document Name:LM24080BCW-3-Manual-Rev0.3

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LCD Module User Manual

LM24080BCW-3

Table of Content

1. Basic Specifications .............................................................................................................. 3

1.1

Display Specifications 3

1.2

Mechanical Specifications

1.3

Block Diagram 3

1.4

Terminal Functions 4

2. Absolute Maximum Ratings .................................................................................................. 5

3. Electrical Characteristics ...................................................................................................... 5

3.1

DC Characteristics 5

3.2

LED Backlight Circuit Characteristics 5

3.3

AC Characteristics

3.4

Reset Timing 6

4. Function Specifications ......................................................................................................... 7

4.1

Resetting the LCD module 7

4.2

Interfacing Setting

4.3

Display Pixel Map(example) 7

4.4

Control Data and Command 8

4.5

Command Summary 8

5. Design and Handling Precaution .......................................................................................... 9

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Document Name:LM24080BCW-3-Manual-Rev0.3

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LCD Module User Manual

LM24080BCW-3

1. Basic Specifications

1.1 Display Specifications

1) LCD Display Mode

: FSTN, Positive, Transflective

2) Display Color

: Display Data = “1” : Dark Gray (*1)

: Display Data = “0” : Light Gray (*2)

3) Viewing Angle

: 6H

4) Driving Method

: 1/80 duty, 1/10 bias

5) Backlight

: White LED backlight

Note:

*1. Color tone may slightly change by Temperature and Driving Condition.

*2. The Color is defined as the inactive / background color

1.2 Mechanical Specifications

1) Outline Dimension

: 130.0 x 65.0 x 11.5 MAX.(Exclude FFC Terminal)

see attached Outline Drawing for details

1.3 Block Diagram

BLA

VSS

Backlight Circuit

240 x 80 pixels

LCD Panel

VDD

VSS

E,R/W,D/C, /CS0,/RST

UC1698

DB2~DB7

or equivalent

DB0(SCK)

DB1(SDA)

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LCD Module User Manual

LM24080BCW-3

1.4 Terminal Functions

Descriptions

Display

No.

Name

I/O

8-bit parallel

Serial

68mode

80mode

4wire

3wire

VSS

Power

0V Power Supply, GND

VDD

Power

Positive Power Supply

No connection,leave open

D/C

Input

pull

D/C=HIGH: data on DB0 to DB7 is display data

down

D/C=LOW: data on DB0 to DB7 is command data

R/W

Input

In read mode

Write enable

pull down

R/W = H; Data read form LCD

input, active LOW

module, data appears

at DB0

– DB7 and can be read by the host

while, E = H and the device is

being selected

In write mode

R/W = L; Data write to the LCD

Input

module, data appears at DB0 –

DB7 will be written into the LCD

Read enable

module

input, active LOW

at E = H  L and device is being

selected

DB0

8-bit bi-directional data bus

Serial clock input

DB1

Serial data input

DB2

pull up or pull

DB3

down

DB4

DB7

/CS0

Input

Chip Select Signal

/CS0=L: Data IO is enabled

/RST

Input

Reset Signal:

/RST = L, Reset the LCD Module

/RST = H, Normal Running

No connection,leave open

BLA

Power

Positive Power Supply for LED backlight

note:

*1. The LCM Fixed to 68 mode by default ,could been changed to serial and 80 mode by

changing jumpers

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LCD Module User Manual

LM24080BCW-3

2. Absolute Maximum Ratings

Items

Symbol

Min.

Max.

Unit

Condition

Supply Voltage

V DD

-0.3

+3.6

V SS = 0V

Input Voltage

V IN

-0.3

V DD +0.3

V SS = 0V

Operating Temperature

T OP

-20

+70

 C

No Condensation

Storage Temperature

T ST

-30

+80

 C

No Condensation

Cautions:

Any Stresses exceeding the Absolute Maximum Ratings may cause substantial damage to the device. Functional operation of this

device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may

affect device reliability.

3. Electrical Characteristics

3.1 DC Characteristics

V SS =0V, V DD =3.0V, T OP =25  C

Items

Symbol

MIN.

TYP.

MAX.

Unit Applicable Pin

Operating Voltage

V DD

2.7

3.0

3.3

VDD

DB0~DB7, E, R/W,/CS0,

Input High Voltage

V IN

0.7xVDD

VDD

D/C, /RST,

DB0~DB7, E, R/W,/CS0,

Input Low Voltage

V IN

VSS

0.2xVDD

D/C, /RST

Operating Current

I DD

0.6

2.3

mA VDD

3.2 LED Backlight Circuit Characteristics

BLK=0V, If BLA =102mA, T OP =25  C

Items

Symbol

MIN.

TYP.

MAX.

Unit

Applicable Pin

Forward Voltage

Vf BLA

3.3

BLA

Forward Current

If BLA

102

120

BLA

Cautions:

Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime.

BLA

BLK

No. of LED = 6 pcs

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LCD Module User Manual

LM24080BCW-3

3.3 AC Characteristics

3.3.1 68 Mode

V SS =0V, V DD =3.0V, T OP =25  C

Item

Symbol

MIN.

TYP.

MAX.

Unit

Address setup time

tAS68

Address hold time

tAH68

System cycle time

tCY68

Pulse width

tPWW68

Low pulse width

tLPW68

Data setup time

tDS68

Data hold time

tDH68

tCSSA68

Chip select setup time

tCSH68

Note: *1. Input signal rise/fall time should be less than 20ns

For details, please refer to UC1698U datasheet.

Bus Timing Diagram

3.4 Reset Timing

V SS =0V, V DD =3.0V, T OP =25  C

Item

Symbol

MIN.

TYP.

MAX.

Unit

Reset setup time

trs

1.0

Reset hold time

trh

1.0

Reset active time

trst

150

Reset Timing Diagram

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LCD Module User Manual

LM24080BCW-3

4. Function Specifications

4.1 Resetting the LCD module

The LCD module should be initialized by hardware reset, using /RST terminal.

While turning on the VDD and VSS power supply, maintain /RST terminal at LOW level. After the

power supply stabilized, release the reset terminal (/RST=HIGH)

4.2 Interfacing Setting

Jumpers could been used to change bus interfacing family

Jumpers

JP1

JP2

JP3

JP4

JP5

JP6

Function Discription

open close close open

open

68 mode 8 bit selected <default>

open close open close close

open

80 mode 8 bit selected

close open open close open

4wire serial *1

NOTE 1: In serial mode, the pin E must been pull down,and other unused control pins and data bus pins been connected to VDD or

VSS

4.3 Display Pixel Map(example)

1,1

2,1

3,1

4,1

5,1

- - -

236,1

237,1

238,1

239,1

240,1

1,2

2,2

3,2

4,2

5,2

- - -

236,2

237,2

238,2

239,2

240, 2

1,3

2,3

3,3

4,3

5,3

- - -

236,3

237,3

238,3

239,3

240, 3

1, 78

2, 78

3, 78

4, 78

5, 78

- - -

236,238 237, 78 238, 78 239, 78

240,78

1, 79

2, 79

3, 79

4, 79

5, 79

- - -

236, 79 237, 79 238, 79 239, 79

240,79

1, 80

2, 80

3, 80

4, 80

5, 80

- - -

236, 80 237, 80 238, 80 239, 80

240,80

Pixel mapping (Top View)

Note:

*1.

Based on the top view of the LCD module,

the 1, 1 (x, y) pixel is the upper-left pixel;

the 240, 80 (x, y) pixel is the lower-right pixel.

*2.

The registet LC[7:6] is set to 01b.

1,1

2,1

3,1

4,1

5,1

6,1

1st byte

2nd byte

3rd byte

Pixel[1,1]=1st byte D7~D4,Pixel[2,1]=1st byte D3~D0,Pixel[3,1]=2nd byte D7~D4, Pixel[4,1]=2nd byte D3~D0.

*4.

For the details of memory mapping please refer to UC1698 datasheet.

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LCD Module User Manual

LM24080BCW-3

4.4 Control Data and Command

The LCD module setting is controlled by the internal Register Values.

The Register Address should be addressed when RS=1 and Register Value should be issued when RS=0.

A full command sequence should be as follow.

Steps

Data (DB0~ DB7)

1 st

H  L

2 nd

H  L

4.5 Command Summary

Note: *1.For the details, please refer to UC1698 Data sheet.

*2. C/D: 0:Control, 1:Data; W/R: 0: Write Cycle, 1:Read Cycle(Read available in 68 mode); #: Useful Data bIts; - Don’t Care

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LCD Module User Manual

LM24080BCW-3

5. Design and Handling Precaution

Please refer to "LCD-Module-Design-Handling-Precaution.pdf".

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