USER S GUIDE ATM4004A

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Meryl Booker
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1 USER S GUIDE ATM4004A Liquid Crystal Display Module

2 CONTENTS 1.0 Mechanical Diagram Absolute Maximum Ratings Description of Terminals Optical Characteristics Electrical Characteristics Timing Characteristics Block Diagram Display Commands Reliability and Lift Time Display Instruction Table Standard Character Pattern.. 11

3 1.0 Mechanical Diagram XIAMEN ARROW-TECH ELECTRONIC CO., LTD. ATM4004A TEL. : FAX.:

4 2.0 Absolute Maximum Ratings Item Symbol Min Typ Max Unit Operating Temperature (Standard) Top 0-50 ºC Storage Temperature (Standard) Tst ºC Operating Temperature (Wide Temperature) Top ºC Storage Temperature (Wide Temperature) Tst ºC Input Voltage Vin Vss Vdd V Supply Voltage For Logic Vdd- Vss V Supply Voltage For Lcd Drive Vdd- Vo V *wide Temperature range is available (operating/storage temperature as wide as /-30+80) 3.0 Description Of Terminals PIN PIN INPUT/ EXTERNAL NO. NAME OUTPUT CONNECTION FUNCTION 1 VSS Power VSS:GND 2 VDD Supply VDD: +5V 3 V0 V LCD adjustment (need Dismount R12) 4 RS INPUT MPU Register select signal 0 :Instruction register (when writing) Busy flag & address counter (When reading) 1 :Data register (when writing & reading) 5 R/W Input MPU Read/write select signal 0 for writing, 1 for reading 6 VEE MPU VEE:-5V 7 E1 Input MPU Operation (data read/write) enable signal 8 E2 Input MPU Operation (data read/write) enable signal 9 / / Input MPU LED + LED - Input LED BACKLIGHT POWER SUPPLY Data bit 0~Data bit 7 LED+VOLTAGE TYPE:4.2V MAX : 4.5V LED-: GND

5 4.0 Optical Characteristics for TN Type Display Module (T a =25, V DD =5.0V0.25V) ITEM SYMBOL CONDITION MIN TYP MAX UNIT Viewing Angle (Horizontal) θ Cr Deg Viewing Angle (Vertical) φ Cr Deg Contrast Ratio Cr φ=0, θ=0-2 - Response Time (Rise) Tr φ=0, θ= Ms Response Time (Fall) Tf φ=0, θ= Ms for STN Type Display Module (T a =25, V DD =5.0V0.25V) ITEM SYMBOL CONDITION MIN TYP MAX UNIT Viewing Angle (Horizontal) θ Cr Deg Viewing Angle (Vertical) φ Cr Deg Contrast Ratio Cr φ=0, θ=0-6 - Response Time (Rise) Tr φ=0, θ= Ms Response Time (Fall) Tf φ=0, θ= Ms 5.0 Electrical Characteristics ITEM SYMBOL CONDITION MIN TYP MAX UNIT Input Voltage (High) Vih H Level Vdd V Input Voltage (Low) Vil L Level V Recommended Lc Driving Voltage (Standard Temp) Recommended Lc Driving Voltage (Wide Temp) Power Supply Current Vdd - Vo Vdd -Vo Idd 0ºC ºC ºC ºC ºC ºC ºC Vdd=5.0v, Fosc=270khz Ma Led Power Supply Voltage Vfled R=6.8Ω V Led Power Supply Current Ifled R=6.8Ω Ma V V

6 6.0 Timing Characteristics ITEM SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Enable Cycle Time T c Fig. A, Fig. B Ns Enable Pulse Width T w Fig. A, Fig. B Ns Enable Rise/Fall Time T r, T f Fig. A, Fig. B Ns Rs, R/W Set Up Time T su Fig. A, Fig. B Ns Rs, R/W Hold Time T h Fig. A, Fig. B Ns Data Delay Time T d Fig. B Ns Data Set Up Time T dsu Fig. A Ns Data Hold Time T dh Fig. A, Fig. B Ns Write Timing Read Timing RS t SU t H R/W V IL1 t W t F t H E V IH1 tr t DSU tdh 0~7 V IL1 Valid Data tc Fig. A Interface Timing (Data Write) RS tsu t H R/W V IH1 t W t F t H E V IH1 t R t D t DSU t DH 0~7 Valid Data t C Fig. B Interface Timing (Data Read)

7 7.0 Block Diagram 2. Vdd 1. Vss 3. Vo 4. RS 5. R/W 6.VEE U1 SEG1-40 U1 U2 U3 SEGMENT SEGMENT ~ E1 8. E2 8 U 1 & U 4 COM COM U4 SEG1-40 U4 LCD 40X SEGMENT SEGMENT U5 U6 A BL+ K BL- LED BACKLIGHT Ω

8 VDD-Vo: LCD DRIVING VOLTAGE VR: 10K-20K 8.0 Display command PARAMETER RS R/W NOTE Clear Display Write "20H" to DDRAM and set DDRAM address to "00H" from AC EXECUTING TIME FOSC=270 KHZ 1.52ms Cursor home * Set DDRAM address to "00H" from AC and return cursor to its original position if shifted. The contents of DDRAM are not changed 1.52ms Entry Mode Set Display on/off Cursor / Display Shift /D S D C B S/C R/L * * 38s Set display(d), cursor(c), and blinking of cursor(b) on/off 38s control bit. Set cursor moving and display shift control bit, and 38s the direction, without changing of DDRAM data. Function Set DL N F * * Set CG RAM Address Ac5 Ac4 Ac3 Ac2 Ac1 Ac0 38s Set DDRAM address in 38s counter Set DD RAM Address Ac6 Ac5 Ac4 Ac3 Ac2 Ac1 Ac0 Set DDRAM address in counter 38s Read Busy Flug/Address Counter 0 1 BF Ac6 Ac5 Ac4 Ac3 Ac2 Ac1 Ac0 Whether during internal operation or not can be known by reading BF. The contents of address counter can also be read Write Data 1 0 D7 D6 D5 D4 D3 D2 D1 D0 Write data into internal RAM (DDRAM/CGRAM). 38s Read Data 1 1 D7 D6 D5 D4 D3 D2 D1 D0 Read data from internal RAM (DDRAM/CGRAM). 38s

9 9.0 Reliability and Life Time 1.Reliability Test Storage Condition Operation At High Temperature And Humidity High Temperature Storage Low Temperature Storage Content 40ºC,90% Rh,240hrs 60ºC, 240hrs -20ºC, 240hrs EVALUATIONS AND ASSESSMENT* Current Consumption Oozing Contrast Other Appearances Twice Initial More Than 80% Of None Value Or Less Initial Value No Abnormality Twice Initial More Than 80% Of None Value Or Less Initial Value No Abnormality Twice Initial More Than 80% Of Value Or Less Initial Value No Abnormality *Evaluations and assessment to be made two hours after returning to room temperature (25ºc±5ºc). *the lcds subjected to the test must not have dew condensation. 2. Liquid crystal panel service life 50,000 hours minimum at 2510,4520%RH Display Instruction Table EXECUTING COMMAND R S R/ W DESCRIPTION TIME FOSC=250K HZ CLEAR DISPLAY CLEARS DISPLAY & RETURNS TO ADDRESS 0. RETURNS CURSOR TO ADDRESS MS CURSOR AT X ALSO RETURNS THE DISPLAY 1.64MS HOME BEING SHIFTED TO THE ORIGINAL POSITION. DDRAM CONTENTS REMAIN UNCHANGED. ENTRY I/D: SET CURSOR MOVING MODE I/D S DIRECTION SET I/D=1: INCREMENT I/D=0: DECREMENT S: SPECIFY SHIFT OF DISPLAY S=1: THE DISPLAY IS SHIFTED S=0: THE DISPLAY IS NOT SHIFTED

10 DISPLAY ON/OFF D C B DISPLAY D=1: DISPLAY ON D=0: DISPLAY OFF CONTROL CURSOR C=1: CURSOR ON C=0: CURSOR OFF BRINK B=1: BRINK ON B=0: BRINK OFF CURSOR / DISPLAY S/C R/L X X MOVES CURSOR OR SHIFTS THE SHIFT DISPLAY W/O CHANGING DD RAM CONTENTS S/C=0: CURSOR SHIFT (RAM UNCHANGED) S/C=1: DISPLAY SHIFT (RAM UNCHANGED) R/L=1: SHIFT TO THE RIGHT R/L=0: SHIFT TO THE LEFT FUNCTION SET DL N F X X SETS DATA BUS LENGTH (DL), # OF DISPLAY LINES (N), AND CHARACTER FONTS (F). DL=1: 8 BITS F=0: 5X7 DOTS DL=0: 4 BITS F=1: 5X10 DOTS N=0: 1 LINE DISPLAY N=1: 2 LINES DISPLAY SET CG SETS CG RAM ADDRESS. CG RAM RAM CHARACTER GENERATOR (CG) DATA IS SENT AND RECEIVED ADDRESS RAM ADDRESS AFTER THIS INSTRUCTION. SET DD DISPLAY DATA (DD) RAM ADDRESS / SETS DD RAM ADDRESS. DD RAM RAM CURSOR ADDRESS DATA IS SENT AND RECEIVED ADDRESS AFTER THIS INSTRUCTION. BUSY FLAG / ADDRESS COUNTER USED FOR READS BUSY FLAG (BF) AND ADDRESS 0 1 B BOTH DD & CG RAM ADDRESS ADDRESS COUNTER CONTENTS. READ F WRITE WRITE DATA WRITES DATA INTO DDRAM OR DATA 1 0 CGRAM. READ DATA READ DATA 1 1 READS DATA FROM DDRAM OR CGRAM. 46µS 46µS

11 11.0 Standard Character Pattern Note: the character generator ram is the ram with which the user can rewrite character patterns by program.

AZ DISPLAYS, INC. COMPLETE LCD SOLUTIONS SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY

AZ DISPLAYS, INC. COMPLETE LCD SOLUTIONS SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY PART NUMBER: ACM 4002E SERIES DATE: October 8, 2002 1.0 MECHANICAL SPECS ACM4002E SERIES LCD MODULE 1. Overall Module