LM6020FCW

LM6020FCW

LCD Module User Manual

Prepared by:

Checked by:

Approved by:

Dong

Date:2014-07-23

Date:

Rev. Descriptions

Release Date

0.1

Preliminary release

2014-07-23

URL: www.topwaydisplay.com

Document Name: LM6020FCW-Manual-Rev0.1

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LCD Module User Manual

LM6020FCW

Table of Content

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

1.1

Display Specifications ............................................................................................................................................ 3

1.2

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

1.3

Block Diagram ........................................................................................................................................................ 3

2. Terminal Functions ................................................................................................................ 4

3. Absolute Maximum Ratings .................................................................................................. 5

4. Electrical Characteristics ...................................................................................................... 5

4.1

DC Characteristics ................................................................................................................................................. 5

4.2

LED Backlight Circuit Characteristics ..................................................................................................................... 5

4.3

AC Characteristics ................................................................................................................................................. 6

4.4

Reset Timing .......................................................................................................................................................... 8

5. Function specifications ......................................................................................................... 9

5.1

Adjusting the Display Contrast ............................................................................................................................... 9

5.2

Application circuit (Example) .................................................................................................................................. 9

5.3

The Serial Interface ................................................................................................................................................ 9

5.4

Basic Setting ........................................................................................................................................................ 10

5.5

Resetting the LCD module ................................................................................................................................... 10

5.6

Display Memory Map............................................................................................................................................ 10

5.7

Display Commands .............................................................................................................................................. 11

6. Design and Handling Precaution ........................................................................................ 12

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Document Name: LM6020FCW-Manual-Rev0.1

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LCD Module User Manual

LM6020FCW

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

: 1/65 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

*3. Fine Contrast adjustment function is necessary in the application design for optimal display result.

1.2 Mechanical Specifications

1) Outline Dimension

: 44.9 x 32.6 x 8.9MAX (mm) (exclude FPC terminal)

(See attached Outline Drawing for details)

1.3 Block Diagram

Backlight

BLA, BLK

LCD Panel

128 × 64Pixels

VDD

VSS

D0~D7

/CS1, RD(E), WR(R/W), RESET,

ST7565 or equivalent

C86, P/S,IRS

V0~V4, VR,V0, VOUT

C1P, C1N, C2P, C2N, C3P, C4P

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LM6020FCW

2. Terminal Functions

Descriptions

8-bit parallel

Serial mode

NO.

Name

I/O

8080 mode(Default)

6800 mode

/CS1

Input

Chip Select

/CS1=L, enable access to the LCD module

/CS1=H, disable access to the LCD module

RESET

Input

Reset signal

/RES = L, Initialization is executed

/RES = H, Normal running.

Input

A0 = H, Transferring the Display Data

A0 = L, Transferring the Control Data

Input

/WR=L  H, /RD=H;

R/W=H,E=H;

Not used,

(R/W)

Data or Instruction

Data or Status read Leave open or pull

latch into the LCD

from the LCD module Hi

module

R/W=L,E=H  L;

Input

/WR=H, /RD=L;

Data or Status latch

(E)

Data or Status read

into the LCD module

form the LCD module

I/O

8-bit Data bus;

Not used,

I/O

Three state I/O terminal for display data or

Leave open

I/O

instruction data

I/O

when /CS=H,

Serial clock input

I/O

D0~D7=High Impedance

Serial data input

VDD

Supply

Positive power supply

VSS

Supply

Negative power supply,0V

VOUT

Power Booster Circuit output

C3P

Power Booster Circuit Capacitance terminals

C1N

C1P

C2P

C2N

C4P

VRS

Internal output VREG power supply (leave open)

LCD driving voltage supply terminals

Input

Power Booster Resistor ratio reference input

C86

Input

C86=Low

C86=High

C86=Low

P/S

Input

P/S=High

P/S=Low

IRS

Input

Select the resistors for the V0 voltage level adjustment

IRS=H, Using the internal resistors

IRS=L, Using external attached to the VR Terminal

BLA

Power

Backlight Positive Supply

BLK

Power

Backlight Negative Supply

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LCD Module User Manual

LM6020FCW

3. Absolute Maximum Ratings

Items

Symbol

Min.

Max.

Unit Condition

Supply Voltage

V DD

-0.3

+3.6

V SS = 0V

Input Voltage

V IN

-0.2

V DD +0.2

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.

4. Electrical Characteristics

4.1 DC Characteristics

V SS =0V, V DD =3.0V, T OP =25  C

Items

Symbol

MIN.

TYP.

MAX.

Unit Condition /

Application Pin

Operating Voltage

V DD

2.7

3.3

VDD

Input High Voltage

V IH

0.85xV DD

V DD

RESET, /CS1, A0,

Input Low Voltage

V IL

V SS

0.15xV DD

WR(R/W), RD(E),

D0~D7

Output High Voltage

V OH

0.75xV DD

V DD

D0~D7

Output Low Voltage

V OL

V SS

0.25xV DD

D0~D7

Operating Current

I DD

0.3

1.5

mA VDD

4.2 LED Backlight Circuit Characteristics

BLK=0V,BLA=3.3V, T OP =25  C

Items

Symbol

MIN.

TYP.

MAX.

Unit

Applicable Pin

Forward Voltage

V BLA

3.3

BLA

Forward Current

I BLA

BLA

Cautions:

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

BLA

BLK

No. of LEDs= 2x1

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4.3 AC Characteristics

4.3.1 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

312

Address setup time (A0)

taw8

Address hold time (A0)

tah8

Control LOW pulse width (/RD)

tccl r

182

Control LOW pulse width (/WR)

tcclw

104

Control HIGH pulse width (/RD)

tcch r

104

Control HIGH pulse width (/WR)

tcchw

104

Data setup time

tds8

Data hold time

tdh8

/RD access time (*2)

tacc8

Output disable time (*2)

toh8

Note:

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

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

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4.3.2 6800 Mode System Bus Timing

V SS =0V, V DD =3.0V, T OP =25  C

Item

Symbol

MIN.

TYP.

MAX.

Unit

System cycle time

tcyc6

312

Address setup time (A0)

taw6

Address hold time (A0)

tah6

Control LOW pulse width (R/W)

tewlr

104

Control LOW pulse width (R/W)

tewlw

104

Control HIGH pulse width (/RD)

tewhr

182

Control HIGH pulse width (R/W)

tewhw

104

Data setup time

tds6

Data hold time

tdh6

/RD access time (*2)

tacc6

Output disable time (*2)

tch6

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.

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LCD Module User Manual

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4.3.3 Serial Mode Interface

V SS =0V, V DD =3.0V, T OP =25  C

Item

Symbol

MIN.

TYP.

MAX.

Unit

Serial Clock Period

tscyc

Address setup time (A0)

tsas

Address hold time (A0)

tsah

SCL “H” pulse width

tshw

SCL “L” pulse width

tslw

Data setup time

tsds

Data hold time

tsdh

CS-SCL time

tcss

CS-SCL time

tcsh

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.

4.4 Reset Timing

V SS =0V, V DD =3.0V, T OP =25  C

Item

Symbol

MIN.

TYP.

MAX.

Unit

Reset time

1.3

μs

Reset LOW pulse width

trw

1.3

μs

Note:

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

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LCD Module User Manual

LM6020FCW

5. Function specifications

5.1 Adjusting the Display Contrast

- This LCD module equipped with latest digital contrast adjustment function.

- Its display contrast could be adjusted by MCU command. (please see the command tables for

details)

- It is recommended to provide a contrast adjustment interface for end-user, where the best

display result could meet the individual preference in mass production.

5.2 Application circuit (Example)

- 4x boosting

- 80 mode

- Using internal ref resistor

- C1~C5 = 1.0uF (25V)

- C6~C9 = 1.0uF (25V)

Note:

Please refer to the ST7565 data sheet for

details

5.3 The Serial Interface

When the serial interface has been selected then when the chip is in active state the serial data

input(SI) and the serial clock(SCL) can be received. The serial data is read from the serial data

input pin in the rising edge of the serial clock . When “A0”=“H”, the data is display data, and when

“A0”=“L”, the data is command.

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LCD Module User Manual

LM6020FCW

5.4 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.

5.5 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)

5.6 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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LCD Module User Manual

LM6020FCW

5.7 Display Commands

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 ST7565 data sheet.

5.7.1 Power off the LCD Module

It recommends that enter Power Save mode before power off the LCD module.

5.7.2 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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LCD Module User Manual

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6. Design and Handling Precaution

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

URL: www.topwaydisplay.com

Document Name: LM6020FCW-Manual-Rev0.1

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