LM6029ACW

LM6029ACW

LCD Module User Manual

Prepared by:

Checked by:

Approved by:

Yang Lin

Date: 2010-06-10

Date:

Rev. Descriptions

Release Date

0.1

Preliminary release

2008-07-23

0.2

Typing correction on Display Command Table Heading

2009-05-15

0.3

Typing correction on Terminal Functions

2009-05-19

0.4

Refine Terminal Functions Discription

2010-06-10

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Document Name: LM6029ACW-Manual-Rev0.4

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LCD Module User Manual

LM6029ACW

Table of Content

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

1.1

Display Specifications……………………………………………………………………………………………………… 3

1.2

Mechanical Specifications……………………………………………………………………………………………….… 3

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…………………………………………………………………………………………………………. 6

4. Function specifications ......................................................................................................... 7

4.1

Basic Setting……………………………………………………………………………………………………………….. 7

4.2

Resetting the LCD module ………………………………………………………………………………………………. 7

4.3

Display Memory Map……………………………………………………………………………………………………… 8

4.4

Display Commands……………………………………………………………………………………………………….. 9

4.5

Display Commands (continue)………………………………………………………………………………………….. 10

5. Design and Handling Precaution ....................................................................... ……………11

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1. Basic Specifications

1.1 Display Specifications

1) LCD Display Mode

: FSTN,Positive, Transflective

2) Display Color

: Display Data = “1” : Dark Blue (*1)

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

3) Viewing Angle

: 6H

4) Driving Method

: 1/65 duty, 1/9 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

: 59.6 x 50.6 x 8.7MAX (mm)

(See attached Outline Drawing for details)

1.3 Block Diagram

BLA

Backlight Circuit

LCD Panel

128 × 64Pixels

VDD

VSS

/WR,/RD,D0~D7

ST7565 or equivalent

/CS1, /RES, RS

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1.4 Terminal Functions

Pin No.

Name

I/O

Descriptions

VSS

Power Negative power supply,0V

VDD

Power Positive power supply

DB7

I/O

8-bit Data bus;

Three state I/O terminal for display data or instruction data

DB0

When /CS =H;

DB0~DB7=High Impedance

/RD

Input

Read enable input, active LOW

/WR

Input

Write enable input, active LOW

Input

RS = H, Transferring the Display Data

RS = L, Transferring the Control Data

/RES

Input

Reset signal

/RES = L, Initialization is executed

/RES = H, Normal running.

/CS1

Input

Chip Select

/CS1=L, enable access to the LCD module

/CS1=H, disable access to the LCD module

BLA

Power Positive power for LED backlight

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2. Absolute Maximum Ratings

Items

Symbol

Min.

Max.

Unit Condition

Supply Voltage

V DD

-0.3

+3.4

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 =3.3V, T OP =25  C

Items

Symbol

MIN.

TYP.

MAX.

Unit Condition /

Application Pin

Operating Voltage

V DD

2.9

3.3

3.4

VDD

Input High Voltage

V IH

0.8xV DD

V DD

/RES, /CS1, RS,

Input Low Voltage

V IL

V SS

0.2xV DD

D0~D7,/WR,/RD

Operating Current

I DD

0.15

1.4

mA VDD

3.2 LED Backlight Circuit Characteristics

VSS=0V, If BLA =39mA, T OP =25  C

Items

Symbol

MIN.

TYP.

MAX.

Unit

Applicable Pin

Forward Voltage

Vf BLA

3.3

BLA

Forward Current

If BLA

BLA

Cautions:

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

BLA

VSS

No. of LED = 3pcs

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3.3 AC Characteristics

3.3.1 8080 Mode System Bus Timing

V SS =0V, V DD =3.0V, T OP =25  C

Item

Symbol

MIN.

TYP.

MAX.

Unit

System cycle time

tcyc8

240

Address setup time (RS)

taw8

Address hold time (RS)

tah8

Control LOW pulse width (/WR)

tcclw

Control LOW pulse width (/RD)

tcclr

140

Control HIGH pulse width (/WR)

tcchw

Control HIGH pulse width (/RD)

tcchr

Data setup time

tds8

Data hold time

tdh8

/RD access time (*2)

tacc8

Output disable time (*2)

tch8

Note:

*1. Input signal rise/fall time should be less than 15ns .

*2. CL=100pF

*3.All timing is using 20% and 80% of VDD as the reference.

3.3.2 Reset Timing

V SS =0V, V DD =3.0V, T OP =25  C

Item

Symbol

MIN.

TYP.

MAX.

Unit

Reset time

2.5

μs

Reset LOW pulse width

trw

2.5

μs

Note:

*1.All timing is using 20% and 80% of VDD as the reference.

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4. Function specifications

4.1 Basic Setting

To drive the LCD module correctly and provide normally display, please use the following setting

- ADC = 0 (normal)

- SHL select = 1 (reverse)

- LCD Bias Select = 1/9

- Initial Display Line = 0

- Entire Display ON/OFF = OFF (normal)

- Reverse Display ON/OFF = OFF (normal)

- Set Power Control Set:

voltage follower = ON, voltage converter = ON, voltage regulator = ON

- Display ON/OFF = ON

Note:

*1. These setting/commands should issue the LCD module while start up.

*2. See the Display Commands section for details.

4.2 Resetting the LCD module

The LCD module should be initialized by using /RES terminal.

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

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

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4.3 Display Memory Map

Page address

data

LCD Display (front view)

128x64 pixels

Column Address

00h



7Fh

Note:

*1. ADC = 0 (normal)

*2. SHL Selection = 1 (reverse)

*3. Initial Display Line = 0

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4.4 Display Commands

Code

No. Instructions

Function

DON=0, display off

Display ON/OFF

0 1 0 1 0 1 0 1 1 1

DON=1, display on

Display start

Sets the display RAM display start line

Display start line set

0 1 0 0 1

address

Page

Set Page Address

0 1 0 1 0 1 1

Address

Set the display RAM page address

Set Column Address

0 1 0 0 0 0 1

Col. Add.

Set the upper-4-bit of column address counter

(Upper-4-bits)

Upper

Set Column Address

0 1 0 0 0 0 0

Col. Add.

Set the lower-4-bit of column address counter

(Lower-4-bits)

Lower

Read the status data

Read Status

0 0 1 Status

0 0 0 0

Write Display Data

1 1 0

Write Data

Write data into the display RAM

Read Display Data

1 0 1

Read Data

Read data form the display RAM

Sets the display RAM address SEG output

ADC Select

0 1 0 1 0 1 0 0 0 0

correspondence

ADC= 0,normal . ADC=1, reverse

REV=0, Normal display

Normal/Reverse Display 0 1 0 1 0 1 0 0 1 1

REV=1, Reverse display

EON=0, Normal display

Entire Display ON/OFF

0 1 0 1 0 1 0 0 1 0

EON=1, Entire display ON

Set the LCD driving voltage bias

Set LCD Bias

0 1 0 1 0 1 0 0 0 1

BIAS=0, 1/9 BIAS

BIAS=1, 1/7 BIAS

Enter the “Read-Modify-Write” mode

column address counter will increase in each

Set Read-Modify-Write

0 1 0 1 1 1 0 0 0 0 0 “Write Display Data”,

and will not increase in each “Read Display

Data command”

Reset Read-Modify-Write 0 1 0 1 1 1 0 1 1 1 0 Clear the “Read-Modify-Write” mode

Reset

0 1 0 1 1 1 0 0 0 1 0 Resets the LCD module

Set the COM scanning direction

SHL=0, Normal display

SHL Select

0 1 0 1 1 0 0

* * *

SHL=1, Flipped in y direction

* = don’t care terms

Set the power circuit operation mode

VF: LCD Supply Voltage Follower

Power Control Set

0 1 0 0 0 1 0 1

VR: LCD Supply Voltage Regulator

VC: LCD Supply Voltage Converter

(1=ON, 0=OFF)

Radio

Regulator Resistor Select 0 1 0 0 0 1 0 0

setting

Set the built-in resistor ratio (Rb/Ra)

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4.5 Display Commands (continue)

Code

No. Instructions

Function

Electronic volume mode set 0 1 0 1 0 0 0 0 0 0 1 Set reference voltage mode

Electronic volume register

Electronic

Set reference voltage register

set

0 1 0 * *

Control value (Display contrast value)

0 1 0 1 0 1 0 1 1 0 S Sleep Mode (2 byte command)

Sleep Mode Set

0 1 0 0 0 0 0 0 0 0 0

S=0, sleep mode

S=1, normal mode

Booster Ratio Set

0 1 0 1 1 1 1 1 0 0 0 Booster Ratio (2 byte command)

Ratio=00, 2x, 3x, 4x

0 1 0 0 0 0 0 0 0 Ratio Ratio=01, 5x

Ratio=11, 6x

NOP

0 1 0 1 1 1 0 0 0 1 1 Non-operation command

Note:

*1. Do not use any other command not listed, or the system malfunction may result.

*2. For the details of the Display Commands, please refer to ST7565R data sheet.

4.5.1 Power off the LCD Module

It recommends that enter Sleep Mode before power off the LCD module.

4.5.2 Refreshing The LCD Module

It recommends that the operating modes and display contents be refreshed periodically to prevent

the effect of unexpected noise.

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5. Design and Handling Precaution

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

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Document Name: LM6029ACW-Manual-Rev0.4

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