LMB162

LMB162AFC

LCD Module User Manual

Shenzhen TOPWAY Technology Co., Ltd.

Rev. Descriptions 0.1 Prelimiay release

Release Date 2006-02-07

URL: www.topwaydisplay.com www.topwaysz.com

Document Name: LMB162AFC-Manual-Rev0.1

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TOPWAY LCD Module User Manual LMB162AFC

Table of Content

1. Basic Specifications................................................................................................................3 1.1 1.2 1.3 1.4

Display Specifications.........................................................................................................3 Mechanical Specifications..................................................................................................3 Block Diagram....................................................................................................................3 Terminal Functions.............................................................................................................4

2. Absolute Maximum Ratings....................................................................................................5 3. Electrical Characteristics........................................................................................................5 3.1 3.2 3.3 4.1 4.2 4.3 4.4 4.5

DC Characteristics..............................................................................................................5 LED Backlight Circuit Characteristics.................................................................................5 AC Characteristics..............................................................................................................6 Basic Setting.......................................................................................................................7 Resetting the LCD module.................................................................................................7 Adjusting the LCD display contrast.....................................................................................7 Display Memory Map..........................................................................................................8 Display Commands..........................................................................................................10

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

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

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TOPWAY LCD Module User Manual LMB162AFC

1. Basic Specifications

1.1 Display Specifications

1) LCD Display Mode : STN, Negative, Transmissive 2) Display Color : Display Data = “1” : Light Gray (*1) : Display Data = “0” : Deep Blue (*2) 3) Viewing Angle : 6H 4) Driving Method : 1/16 duty, 1/5 bias 5) Back Light : 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 : 80.8 x 36.0 x 12.5MAX (See attached Outline Drawing for details) 1.3 Block Diagram

BLABLK

LED

Backlight Circuit

COM1 | COM16 LCD Panel 16 x 2 Char (5x8dots) VDDVSSV0

DB0 – DB7RS, R/W, E

ST7066Uor equivalent SEG1 | SEG40 ST7065 or equivalent URL: www.topwaydisplay.com www.topwaysz.com

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SEG41 | SEG80 TOPWAY LCD Module User Manual LMB162AFC

1.4 Terminal Functions

Pin

Pin No. I/O Descriptions

Name

1 VSS Power Power supply, Ground (0V) 2 VDD Power Positive power supply 3 V0 Power LCD contrast reference supply 4 RS Input Register Select

RS=HIGH: transferring display data

RS=LOW: transferring instruction data

5

R/W Input Read / Write Control bus:

R/W=HIGH: Read mode selected R/W=LOW: Write mode selected

6 E Input Data Enable 7 DB0 I/O Bi-directional tri-state Data bus

In 8 bit mode, DB0 ~ DB7 are in use : : In 4 bit mode, DB4 ~ DB7 are in use, DB0~DB3 leave open 14 DB7 15 BLA Power Backlight positive supply 16 BLK Power Backlight negative supply

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TOPWAY LCD Module User Manual LMB162AFC

2. Absolute Maximum Ratings

Items

Supply Voltage Input Voltage

Operating Temperature Storage Temperature

Symbol Min. Max. Unit Condition VDD 0 6.0 V VSS = 0V VIN 0 VDD V VSS = 0V TOP -10 60 °C No Condensation TST -20 70 °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 Items

Operating Voltage Input High Voltage Input Low Voltage Output High Voltage Output Low Voltage Operating Current

VSS=0V, VDD=5.0V, TOP=25°C

Symbol MIN. TYP. MAX. Unit Condition /

Application Pin

VDD 4.7 5.0 5.3 V VDD VIH 0.8xVDD - VDD V RS, R/W, E, DB0 ~ DB7 VIL VSS - 0.5 V VOH 0.7xVDD - VDD V IOH=-0.1mA, DB0 ~ DB7 VOL VSS - 0.5 V IOL=0.1mA, DB0 ~ DB7 IDD - 1.3 3.0 mA VDD, VSS

3.2 LED Backlight Circuit Characteristics Items

Forward Voltage Forward Current

VBLK=0V, IfBLA=51mA, TOP=25°C

Symbol MIN. TYP. MAX. Unit Applicable Pin VfBLA - 5.0 - V BLA IfBLA - - 70 mA BLA

Cautions:

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

BLA

BLK

No. of LED = 3 pcs URL: www.topwaydisplay.com www.topwaysz.com

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TOPWAY LCD Module User Manual LMB162AFC

3.3 AC Characteristics Item

E cycle time

E high level width E rise time E fall time

Address set-up time Address hold time Data set-up time Data delay time Data hold time

Symbol tc tpw tr tf tas tah tdsw tddr th

MIN. 1500 175 - - 5 13 50 - 13

TYP. - - - - - - - - -

VSS=0V, VDD =5V, TOP =25°C

MAX. Unit - ns - ns 20 ns 20 ns - ns - ns - ns 125 ns - ns

Host Write Timing Diagram

Host Read Timing Diagram

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TOPWAY LCD Module User Manual LMB162AFC

4. Function Specifications

4.1 Basic Setting

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

- N=1, 2-line display - F=0, 5x8 dots font - D=1, display on

Note:

*1. These setting/commands should issue to the LCD module while start up. *2. See the Display Commands section for details.

4.2 Resetting the LCD module

When turning on the VDD and VSS power supply, LCD module will execute the reset routine

automatically. It takes about 50ms. After the reset routine, the LCD module status will be as follow:

- Display clear =- DL1, 8-bit interface - N0, 1-line display =- =F=0, 5x8 dot character font =- D0, Display off - =C0, Cursor off

=- B0, Blinking off - I/D=1, Increment by 1 - S0, No shift

Note:

*1. Reset routine could not generate the Basic Setting

4.3 Adjusting the LCD display contrast

A Variable-Resistor must be connected to the LCD module for providing a reference supply to V0. Adjusting the VR will result the change of LCD display contrast. The recommended value of VR is 5k Ohm.

LCD Module

V0

VSS

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TOPWAY LCD Module User Manual LMB162AFC

4.4 Display Memory Map

There are two main memory-areas in the LCD module for display.

- Character Generator RAM (CGRAM) - Display Data RAM (DDRAM)

4.4.1 Character Generator RAM (CGRAM)

Character Generator RAM is for storing the User-defined Characters (5x8 dots font). Totally 8 User-defined Characters (character code = 00h ~ 07h) could be created.

The User-defined Character Codes are 00h and 07h. They could be called into DDRAM as normal character.

User-defined CGRAM Data (Font Pattern) CGRAM Character

Address D7 ~ D5 D4 ~ D0 Code

00h

(08h) 01h (09h) 02h (0Ah) 03h (0Bh) 04h (0Ch) 05h (0Dh) 06h (0Eh) 07h (0Fh)

00h 01h : 06h 07h 08h 09h : 0Eh 0Fh 10h 11h : 16h 17h 18h 19h : 1Eh 1Fh 20h 21h : 26h 27h 28h 29h : 2Eh 2Fh 30h 31h : 36h 37h 38h 39h : 3Eh 3Fh

Not Use

5 x 8 dots font pattern 5 x 8 dots font pattern 5 x 8 dots font pattern 5 x 8 dots font pattern 5 x 8 dots font pattern 5 x 8 dots font pattern 5 x 8 dots font pattern 5 x 8 dots font pattern

Not Use

Not Use

Not Use

Not Use

Not Use

Not Use

Not Use

CGRAM Address Map

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TOPWAY LCD Module User Manual LMB162AFC

4.4.2 Display Data RAM (DDRAM)

ROM Characters (Character Code = 10h ~ FFh) could be written into DDRAM for displaying the Character (5x8 dots font). User-defined Characters (Character Code = 00h ~ 07h) stored in CGRAM could also be use. Calling Character Code 08h ~ 0Fh will call out User-defined Characters 00h ~ 07h respectively.

DDRAM Address

00h 01h 02h03h 0Ch0Dh 0Eh 0Fh

16 x 2 Characters (5x8 dots font)

40h 41h 42h43h 4Ch4Dh 4Eh 4FhDDRAM Address

DDRAM Address Map

Note:

*1. The mapping is based on top view of the LCD module *2. N=1, 2-line display *3. F=0, 5x8 dots font *4. D=1, display on

4.4.3 Character Code Rom

Please refer to ST7066U-0A Data sheet

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TOPWAY LCD Module User Manual LMB162AFC

4.5 Display Commands

Code

R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 RS No.

1 2

Instructions

Clear

Display Return Home

Function

3

Entry Mode

Set

4

Display ON/OFF Cursor or Display Shift Function Set Set CGRAM address Set DDRAM address Read Busy flag & address Write data to RAM Read data from RAM

5

6 7 8 9 10 11

Write “20h” to DDRAM and

set DDRAM address (AC) to “00h”

Set DDRAM address (AC) to “00h” and

0 0 0 0 0 0 0 0 1 x return cursor to its original position if shifted

(DDRAM contents are not change)

Set cursor moving direction and specify display shift, during data read and write of DDRAM and CGRAM.

0 0 0 0 0 0 0 1 I/DS S=1, screen shifting; S=0, no screen shiftingI/D=1, AC=AC+1 and if S=1, screen shift left I/D=0, AC=AC-1 and if S=1, screen shift right D=1, display on; D=0, display off

0 0 0 0 0 0 1 D C B C=1, cursor on; C=0, cursor off

B=1, cursor blinking on; B=0, cursor blinking off Move the cursor or shift the display, where DDRAM contents.

0 0 0 0 0 1 S/CR/Lx x S/C=1, shift screen; S/C=0, shift cursor

R/L=1, to right-side; R/L=0, to left side (if S/C=1, AC will not be changed)

DL=1, 8-bit interface; DL=0, 4-bit interface

0 0 0 0 1 DLN F x x N=1, 2-line display; N=0, 1-line display

F=1, 5x11 dots font; F=0, 5x8 dots font

0 0 0 0 0 0 0 0 0 1 0 0 0 1 AC5AC4AC3AC2AC1AC0Set CGRAM address in address counter 0 0 1 AC6 AC5AC4AC3AC2AC1AC0Set DDRAM address in address counter

Check the system status and get the address

0 1 BF AC6 AC5AC4AC3AC2AC1AC0counter content (AC6~AC0).

BF=1, busy; BF=0, ready

Write the data into internal RAM, where the

1 0 D7 D6 D5D4D3D2D1D0

address counter pointing at.

Read the data from internal RAM, where the

1 1 D7 D6 D5D4D3D2D1D0

address counter pointing at.

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 ST7066U datasheet.

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TOPWAY LCD Module User Manual LMB162AFC

5. Design and Handling Precaution

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18.

The LCD panel is made by glass. Any mechanical shock (eg. dropping form high place) will damage the LCD module.

Do not add excessive force on the surface of the display, which may cause the Display color change abnormally.

The polarizer on the LCD is easily get scratched. If possible, do not remove the LCD protective film until the last step of installation.

Never attempt to disassemble or rework the LCD module.

Only Clean the LCD with Isopropyl Alcohol or Ethyl Alcohol. Other solvents (eg. water) may damage the LCD.

When mounting the LCD module, make sure that it is free form twisting, warping and distortion.

Ensure to provide enough space (with cushion) between case and LCD panel to

prevent external force adding on it, or it may cause damage to the LCD or degrade the display result.

Only hold the LCD module by its side. Never hold LCD module by add force on the heat seal or TAB.

Never add force to component of the LCD module. It may cause invisible damage or degrade of the reliability.

LCD module could be easily damaged by static electricity. Be careful to maintain an optimum anti-static work environment to protect the LCD module.

When peeling off the protective film from LCD, static charge may cause abnormal display pattern. It is normal and will resume to normal in a short while. Take care and prevent get hurt by the LCD panel sharp edge.

Never operate the LCD module exceed the absolute maximum ratings.

Keep the signal line as short as possible to prevent noisy signal applying to LCD module.

Never apply signal to the LCD module without power supply.

IC chip (eg. TAB or COG) is sensitive to the light. Strong lighting environment could possibly cause malfunction. Light sealing structure casing is recommend. LCD module reliability may be reduced by temperature shock.

When storing the LCD module, avoid exposure to the direct sunlight, high humidity, high temperature or low temperature. They may damage or degrade the LCD module

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