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LCD MODULE SPECIFICATION
MODEL NO. BC1601A series
FOR MESSRS:
________________________________________________ ON DATE OF:
________________________________________________ APPROVED BY:
________________________________________________
CONTENTS 1. Numbering System 2. Precautions in use of LCD Modules 3. General Specification 4. Absolute Maximum Rating 5. Electrical Characteristics 6. Optical Characteristics 7. Interface Pin Function 8. Power supply for LCD Module and LCD operating voltage adjustment 9. Backlight information 10. Quality Assurance 11. Reliability 12. Appendix (Drawing , EL inverter data , KS0066 controller data) 12-1 Drawing 12-2 EL inverter data (P/N:IVEL-01) 12-3 KS0066 controller data 12-3.1 Function description 12-3.2 C.G ROM table. table 2 12-3.3 Instruction table 12-3.4 Timing characteristics 12-3.5 Initializing soft ware of LCM
1. Numbering System
B 0 C 1 2004 2 A 3 G 4 P 5 L 6 E 7 B 8 xxx 9
0 1
Brand Module Type
Bolymin C= character type G= graphic type P= TAB/TCP type 2002=20 characters, 4 lines 12232= 122 x 32 dots A type G=STN/gray Y=STN/yellow-green C=color STN R=positive/reflective P=positive/transflective L=LED array/ yellow-green H=LED edge/white R=LED array/red G=LED edge/yellow-green J=English/Japanese Font E=English/European Font B=STN/blue F=FSTN T=TN M=positive/transmissive N=negative/transmissive D=LED edge/blue E=EL/white B=EL/blue C=CCFL/white C=English/Cyrillic Font H=English/Hebrew Font O= COG type F= COF type
2
Format
3 4
Version No. LCD Color
5
LCD Type
6
Backlight type/color
7
CGRAM Font
8
View Angle/ Operating Temperature
9
Special Code
B=Bottom/Normal Temperature H=Bottom/Wide Temperature U=Bottom/Ultra wide Temperature 3=3 volt logic power supply n=negative voltage for LCD c=cable/connector xxx=to be assigned on data sheet
T=Top/Normal Temperature W=Top/Wide Temperature C=9H/Normal Temperature
t=temperature compensation for LCD p=touch panel
2. Precaution in use of LCD Module (1) Avoid applying excessive shocks to the module or making any alterations or modifications to it. (2) Don't make extra holes on the printed circuit board, modify its shape or change the components of LCD module. (3) Don't disassemble the LCM. (4) Don't operate it above the absolute maximum rating. (5) Don't drop, bend or twist LCM. (6) Soldering: only to the I/O terminals. (7) Storage: please storage in anti-static electricity container and clean environment. (8) Don't touch the elastmer connecter, especially insert a backlight panel (EL or CCFL) 3. General Specification (1) Mechanical Dimension Item Number of Characters Module dimension ( LxWx H ) View area Active area Dot size Dot pitch Character size ( L x W ) Character pitch ( L x W ) Dimension 16characters x 1 Lines 80.0 x 36.0 x 13.2(Max)- LED array B/L, LED edge B/L (white, blue) 80.0 x 36.0 x 9.4 (Max) - LED edge / blue B/L, EL or No B/L 66.0 x 16.0 59.62 x 6.56 0.55 x 0.75 0.63 x 0.83 3.07 x 6.56 3.77 x 6.56 Unit
mm
mm mm mm mm mm mm
(2) Controller IC: KS0066 (or Equivalent) controller (3) Temperature Range Normal Operating Storage 0 ~+50J -10 ~+60J Wide -20 ~+70J -30 ~+80J
4. Absolute Maximum Ratings 4.1 Electrical Absolute Maximum Ratings (Vss=0V, Ta=25J ) Item Supply Voltage (Logic) Supply Voltage (LCD Driver) Input Voltage Symbol Vdd-Vss Vdd-Vo VI TOP Normal Type TSTG Top Wide Temperature Type Tstg -30 +80 J -10 -20 +60 +70 J J Min -0.3 -0.3 Vss 0 Max 7 13 Vdd +50 Unit V V V J
4.2 Environmental Absolute Maximum Ratings Operating Item (Min.) Humidity Vibration Shock --(Max.) (Min.) (Max.) Note (2) --19.6M/S2 490M/S2 Without condensation XYZ Direction XYZ Direction Note (2) 4.9M/S2 29.4M/S2 Storage Comment
Note (1) Ta = 0JR 50Hr Max. Note (2) Ta O 40JG 90% RH MAX Ta > 40JG Absolute humidity must be lower than the humidity of 90% at 40J .
5. Electrical Characteristics Item Supply Voltage For Logic Symbol Vdd-Vss Supply Voltage For LCD Vdd-Vo Wide TempB Type Input High Volt. Input Low Volt. Output High Volt. Output Low Volt. Supply Current VIH VIL VOH VOL Idd Vdd=5V Condition Ta=-20J Ta=0J Ta=25J Ta=50J Ta=+70J 2.2 2.4 1.2 Min 3.0 Typ 5.5 Max 5.5 Vdd 0.6 0.4 Unit V V V V V V V V V V mA
4.5
3.8
6. Optical Characteristics a. STN Item View Angle (H)p Contrast Ratio Response Time 25J CR T rise T fall CRU 2 -30 3 100 150 150 200 30 deg ms ms Symbol (V)c Condition CRU 2 Min. 10 Typ. Max. 45 Unit deg
b. FSTN Item View Angle (H)p Contrast Ratio Response Time 25J CR T rise T fall CRU 3 -45 5 100 150 150 200 45 deg ms ms Symbol (V)c Condition CRU 3 Min. 10 Typ. Max. 60 Unit deg
6.1 1/2 Definitions 1/2 Contrast Ratio
Z ( Visual angle direction )
View Angles
Brightness at selected state ( BS ) Brightness at non-selected state ( Bns ) Selected state CR =
Brightness (%)
Non-selected state
LCD
X Y ( Best visual angle direction )
Bs Bns
Operating voltage for LCD driving
1/2
Response Time
Nonselected Condition
Selected Condition
Nonselected Condition
Brightness
90 %
100 %
10 %
tr Rise Time
td Decay Time ( fall time tf )
7. Interface Pin Function Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol Vss Vdd Vo RS R/W E DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 A / Vee K Level 0V 5.0V Ground Supply Voltage for logic (option +3V) Description
(Variable) Operating voltage for LCD H/L H/L H,H/ H/L H/L H/L H/L H/L H/L H/L H/L H:DATA, L:Instruction code H:Read(MPU/ Module)L:Write(MPU/ Module)
L Chip enable signal Data bit 0 Data bit 1 Data bit 2 Data bit 3 Data bit 4 Data bit 5 Data bit 6 Data bit 7 Power supply for LED backlight ( + ) / Negative voltage output Power supply for LED backlight ( - )
8. Power Supply for LCD Module and LCD Operating Voltage a Adjustment Standart Type
LCM
Vdd DC 5V
Vo
typ.: 4.5V VR (Recomment)
Vss
(Option)LCM operating on " DC 3V " input , with external negative
LCM
Vdd DC 3V Vss Vo typ.: 4.5V VR
Negative volt -3v
(Option) LCM operating on " DC 3V " input , with built-in negative Voltage
LCM built-in N.V generator or Temp. compensation circuit
Vdd DC 3V Vss Vo typ.: 4.5V VR
Vee -3V
9.Backlight Information 9.1 Specification (1) LED array / yellow-green Parameter Supply Current Supply Voltage Reverse Voltage Luminous Intensity Wave Length Life Time Color Symbol ILED V VR IV f p 60 574 100000 Min w Typ 100 4.2 4.3 8 Max Unit mA V V cd/m2 nm Hr. ILED=100mA ILED=100mA VO 4.2V Test Condition V=4.2V
Yellow Green
(2) LED edge / (white / blue) Parameter Supply Current Supply Voltage Reverse Voltage Luminous Intensity Life Time 50000-blue Color White / Blue Symbol ILED V VR IV 50 Min w Typ 20 3.4 10000-white Hr. VO 3.4 V Max 25 3.5 8 Unit mA V V cd/m2 ILED=20mA Test Condition V=3.4V
(3) EL / Blue Parameter Voltage Frequency Brightness* CIE Chromaticity Diagram
Symbol Vrms HZ cd/m2 X
Min --48 --
Typ 110 (AC) 400 60 0.1852
Max
Unit -----
Test Condition
Y
--
0.3937
--
110Vrms 400Hz
Current Dissipation mA/cm2 Power Dissipation Color mW/cm2
---
1.33 26.29 Blue
---
9.2 Backlight driving methods a. LED B/L drive from pin15 (LED+) pin16 (LED-) a.1 array / yellow-green
++15
RL=0
(recommending) RL= 8.2 +4.2V ILED=100mA
+5V
_ 16
a.2 edge / (white / blue)
LCM
+ Backlight _
15
+3.4V
RL = 5 6 ILED =20m A
+5V
16
b. LED B/L drive from A. K directly b.1 array / yellow-green
++ A
RL=0
(recommending) RL= 8.2 +4.2V ILED=100mA
+5V
_K
b.2 edge / (white/blue)
LCM
+ Backlight _
A
+3.4V
RL =56 ILED =20m A
+5V
K
c.
(Option) LED B/L drive from pin1 (Vss) pin2 (Vdd)
LCM Vdd +2 Backlight 1 RL
Vss
(1) (2) (3) (4) Jump 1,2 Short Current Resistor required on RL Jump 15,16 open To be sure of enough current supply for both Vdd + LED B/L
d. EL B/L drive from A.K directly
LCM EL Panel Backlight +110V A K Inverter AC DC DC+5V /
10. Quality Assurance 10.1 Inspection conditions The LCD shall be inspected under 40W white fluorescent light.
45X
Defin t o of ap lic b e Zones
B A LCD BEZEL PCB
A:
D isp la y D isp la y
A rea A rea
B : N on-
10.2 Inspection Parameters
NO. 1
Parameter Black or White spots
Criteria
Zone Acceptable Class Number Of Dimension A B Defects DO0.15 0.15ODO0.2 0.2ODO0.25 DO0.3 4 2 0 * 4 2 1 *: Disregard * Minor
Acceptable Level 2.5
D=(Long + Short)/2 2 Scratch, Substances Zone X(mm) Y(mm) * 0.04UW 4 2 0
Acceptable Acceptable Class Level Number Of A B Defects * 4 3 1 * Minor 2.5
3.0UL 0.06UW 2.0UL 0.08UW 0.1OW
X: Length Y : Width * : Disregard Total defects should not exceed 4/module 3 Air Bubbles (between glass & polarizer)
Zone Acceptable Class Number Of Dimension A B Defects DO0.15 0.15ODO0.25 0.25OD 2 0 * * 1 * Minor
Acceptable Level 2.5
*: Disregard Total defects shall not excess 3/module.
(1) Pixel shape (with Dent) 0.152
(2) Pixel shape (With Projection)
Uniformity 4
Should not be connected to next pixel 0.152 (3) Pin hole
X
Y (X+Y)/2O0.02mm
(Less than 0.1mm is no counted) (4)Deformation
X
(X+Y)/2 O0.3mm
Y Total acceptable number : 1/pixel,5/cell
11. Reliability 1/2 Content of Reliability Test
Environmental Test No. Test Item High Temperature storage Low Temperature 2 storage 1 Content of Test Test Condition Applicable Standard
60J Endurance test applying the high ---- storage temperature for a long time. 200hrs -20J Endurance test applying the high ---- storage temperature for a long time. 200hrs Endurance test applying the electric 50J High Temperature stress (Voltage & Current) and the ---- 3 thermal stress to the element for a Operation 200hrs long time. Endurance test applying the electric 0J Low Temperature 4 stress under low temperature for a ---- Operation 200hrs long time. Endurance test applying the high 60J ,90%RH High Temperature/ 5 temperature and high humidity ---- Humidity Storage 96hrs storage for a long time. Endurance test applying the electric 40J ,90%RH High Temperature/ stress (Voltage & Current) and ---- 6 Humidity Operation temperature / humidity stress to the 96hrs element for a long time. Endurance test applying the low and high temperature cycle. -20J /60J -20J 25J 60J ---- 7 Temperature Cycle 10 cycles 30min 5min 30min 1 cycle Mechanical Test 10~22Hz/ 1.5mmp-p Endurance test applying the vibration 8 Vibration test ---- 22~500Hz/ 1.5G during transportation and using. Total 0.5hrs Constructional and mechanical 50G Half sign 9 Shock test endurance test applying the shock wave 11 msedc ---- during transportation. 3 times of each direction Endurance test applying the Atmospheric 115mbar 10 atmospheric pressure during ---- pressure test 40hrs transportation by air. Others VS=800V,RS=1.5k[ Endurance test applying the electric 11 Static electricity test ---- CS=100pF stress to the terminal. 1 time ***Supply voltage for logic system=5V. Supply voltage for LCD system =Operating voltage at 25J
12. Appendix ( Drawing , EL inverter data , KS0066 controller data)
12-1 Drawing
As shown on next page
12-2 EL inverter data (P/N:IVEL-01)
As shown on next page
Bolymin, Inc.
EL Inverter Specification P/N: IVEL-01 Customer Part No Specification
2 Input(V/Dc) Output(V/Ac) Frequency(Hz) Input(mA/Dc) El range(c ) Test Dummy Load=El(cm )
Date IVEL-01 Item
99/12/03
Rev Dwg. No
A
DC/AC INVERTER
5V/DC10%
80V15%
600Hz20%
60mA TYP.
30~80 c
22nF//66.6K
Test Condtion:@25. Dc 5V & Standard Dummy Load. Test equipment : 1. Millimeter : FLUKE 87S Millimeter. 2. Oscilloscope : Tektromic TDS210 Digital Oscilloscope. 3. Power supply : Gw GPC-3030D Dc Power Supply. 4. Load : EPI - LOAD - 01 Multi Range Load. Operation Temperature : -10 +70 Storage Temperature : -30 +80 Note : 1. Warning : output do not open or short . Inverter may be burnout.
31.0
2.5
21.0
15.0
E5652Z
O G 20.0 I
4.5
PIN I G O
Description Input DC Voltage. DC/AC ground. Output AC Voltage.
Tolerance: 0.5mm
Prepare:
Checked:
5.1 9.5
Approval:
12-3. KS0066 controller data
12-3.1 Function description The LCD display Module is built in a LSI controller, the controller has two 8-bit registers, an instruction register (IR) and a data register (DR). The IR stores instruction codes, such as display clear and cursor shift, and address information for display data RAM (DDRAM) and character generator (CGRAM). The IR can only be written from the MPU. The DR temporarily stores data to be written or read from DDRAM or CGRAM. When address information is written into the IR, then data is stored into the DR from DDRAM or CGRAM. By the register selector (RS) signal, these two registers can be selected. RS 0 0 1 R/W 0 1 0 Operation IR write as an internal operation (display clear, etc.) Read busy flag (DB7) and address counter (DB0 to DB7) Write data to DDRAM or CGRAM (DR to DDRAM or CGRAM) Read data from DDRAM or CGRAM (DDRAM or CGRAM to DR)
1 1 Busy Flag (BF)
When the busy flag is 1, the controller LSI is in the internal operation mode, and the next instruction will not be accepted. When RS=0 and R/W=1, the busy flag is output to DB7. The next instruction must be written after ensuring that the busy flag is 0. Address Counter (AC) The address counter (AC) assigns addresses to both DDRAM and CGRAM Display Data RAM (DDRAM) This DDRAM is used to store the display data represented in 8-bit character codes. Its extended capacity is 80N 8 bits or 80 characters. Below figure is the relationship between DDRAM addresses and positions on the liquid crystal display.
High bits
Low bits Example:DDRAM addresses 4E
AC (hexadecimal)
AC6 AC5 AC4 AC3 AC2 AC1 AC0
1
0
0
1
1
1
0
DDRAM Address Display position DDRAM address 1 00 40 2 01 41 3 02 42 4 03 43 5 04 44 6 05 45 7 06 46 8 07 47 9 08 48 10 09 49 11 0A 4A 12 0B 4B 13 0C 4C 14 0D 4D 15 0E 4E 16 0F 4F
Example: 2-Line by 16-Character Display Character Generator ROM (CGROM) The CGROM generate 5N 8 dot or 5N 10 dot character patterns from 8-bit character codes. See Table 2. Character Generator RAM (CGRAM) In CGRAM, the user can rewrite character by program. For 5N 8 dots, eight character patterns can be written, and for 5N 10 dots, four character patterns can be written. Write into DDRAM the character code at the addresses shown as the left column of table 1. To show the character patterns stored in CGRAM.
Relationship between CGRAM Addresses, Character Codes (DDRAM) and Character Patterns (CGRAM Data)
F o r 5 * 8 d o t c h a ra c te r p a tte rn s C h a ra c te r C o d e s ( D D R A M d a ta ) 76543210 H ig h Low C G R A M A d d re s s 543210 H ig h Low 00 00 01 01 00010 10 11 11 00 00 01 01 00 1 1 0 10 11 11 00 00 1111 1 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 C h a ra c te r P a tte rn s ( C G R A M d a ta ) 76543210 H ig h *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** L ow 0 000 000 0 0 0 00 0 0 00 0 00 0 0 00 000 00 0 0 00 C h a ra c te r p a tte rn ( 1 )
0000
*000
C u rs o r p a tte rn
0000
*001
C h a ra c te r p a tte rn ( 2 )
00 00 00 00 00000
C u rs o r p a tte rn
0000
*111
*** C h a ra c te r P a tte rn s ( C G R A M d a ta ) 76543210 H ig h Low * * * * * * * * * * * * * * * * * * * * * * *00000 *00000 * 0 0 * 00 * 000 * 000 * 0 * 0000 * 0000 * 0000 *00000
F o r 5 * 1 0 d o t c h a ra c te r p a tte rn s C h a ra c te r C o d e s ( D D R A M d a ta ) 76543210 H ig h Low C G R A M A d d re s s 543210 H ig h 0 0 0 0 0 000 0 0 1 1 1 Low 0 0 0 0 1 1 1 1 0 0 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 0 1 0 1 0
0000
*000
C h a ra c te r p a tte rn
C u rs o r p a tte rn
1111
********
: " H ig h "
12-3.2 C.G ROM table. table 2 Code J: English - Japanese Font
U p p er 4 b it L ow er 4 b it
LLLL
CG RAM (1)
LLLH LLHL LLHH LHLL LHLH LHHL LHHH HLLL HLLH HLHL HLHH HHLL HHLH HHHL HHHH
LLLL
LLLH
(2)
LLHL
(3)
LLHH
(4)
LHLL
(5)
LHLH
(6)
LHHL
(7)
LHHH
(8)
HLLL
(1)
HLLH
(2)
HLHL
(3)
HLHH
(4)
HHLL
(5)
HHLH
(6)
HHHL
(7)
HHHH
(8)
Code E: English - European Font
Upper 4 bit Lower 4 bit
LLLL LLLH LLHL LLHH LHLL LHLH LHHL LHHH HLLL HLLH HLHL HLHH HHLL HHLH HHHL HHHH
LLLL
CG RAM (1) CG RAM (2) CG RAM (3) CG RAM (4) CG RAM (5) CG RAM (6) CG RAM (7) CG RAM (8) CG RAM (1) CG RAM (2) CG RAM (3) CG RAM (4) CG RAM (5) CG RAM (6) CG RAM (7) CG RAM (8)
LLLH
LLHL
LLHH
LHLL
LHLH
LHHL
LHHH
HLLL
HLLH
HLHL
HLHH
HHLL
HHLH
HHHL
HHHH
Code C: English - Cyrillic Font
Upper 4 bit Lower 4 bit
LLLL LLLH LLHL LLHH LHLL LHLH LHHL LHHH HLLL HLLH HLHL HLHH HHLL HHLH HHHL HHHH
LLLL
CG RAM (1) CG RAM (2) CG RAM (3) CG RAM (4) CG RAM (5) CG RAM (6) CG RAM (7) CG RAM (8) CG RAM (1) CG RAM (2) CG RAM (3) CG RAM (4) CG RAM (5) CG RAM (6) CG RAM (7) CG RAM (8)
LLLH
LLHL
LLHH
LHLL
LHLH
LHHL
LHHH
HLLL
HLLH
HLHL
HLHH
HHLL
HHLH
HHHL
HHHH
12-3.3 Instruction table
Instruction Code Instruction RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Description
Execution time (fosc=270 Khz)
Clear Display
0
0
0
0
0
0
0
0
0
1
Write "00H" to DDRAM and set DDRAM address to "00H" from AC Set DDRAM address to "00H" from AC and return cursor to its original position if shifted. The contents of DDRAM are not changed.
1.53ms
Return Home
0
0
0
0
0
0
0
0
1
1.53ms
Entry Mode Set Display ON/OFF Control Cursor or Display Shift
0
0
0
0
0
0
0
1
Assign cursor moving direction I/D SH and enable the shift of entire display. Set display (D), cursor (C ), and B blinking of cursor (B) on/off control bit. Set cursor moving and display shift control bit, and the direction, without changing of DDRAM data. Set interface data length (DL:8-bit/4-bit), numbers of display line (N:2-line/1-line)and, display font type (F:5N 11 dots/5N 8 dots) Set CGRAM address in address counter. Set DDRAM address in address counter.
39g s
0
0
0
0
0
0
1
D
C
39g s
0
0
0
0
0
1
S/C R/L
39g s
Function Set
0
0
0
0
1
DL
N
F
39g s
Set CGRAM Address Set DDRAM Address Read Busy Flag and Address Write Data to RAM
0
0
0
1
AC5 AC4 AC3 AC2 AC1 AC0
39g s
0
0
1
AC6 AC5 AC4 AC3 AC2 AC1 AC0
39g s
0
1
Whether during internal operation or not can be known by reading BF AC6 AC5 AC4 AC3 AC2 AC1 AC0 BF. The contents of address counter can also be read. D7 D6 D5 D4 D3 D2 D1 D0 Write data into internal RAM (DDRAM/CGRAM).
0g s
1
0
43g s
Read Data from RAM
1
1
D7 D6 D5
D4 D3 D2 D1 D0
Read data from internal RAM (DDRAM/CGRAM).
43g s
"
"G don't care
12-3.4 Timing characteristics 12-3.4.1 Write Operation
RS
VIH1 VIL1
VIH1 VIL1
tAS R/W E DB0 to DB7
VIL1
tAH
VIL1
PWEH
VIH1 VIL1 VIH1 VIL1
tAH tEf
VIL1
tEr
VIL1
tDSW
VIH1 Valid data
tH
VIH1 VIL1
tcycE
Ta=25J , Vdd=5.0O 0.5V Item Enable cycle time Enable pulse width (high level) Enable rise/fall time Address set-up time (RS, R/W to E) Address hold time Data set-up time Data hold time Symbol tcycE PWEH tEr,tEf tAS tAH tDSW tH Min 500 230 40 10 80 10 Typ 20 Max Unit ns ns ns ns ns ns ns
12-3.4.2 Read Operation
RS
VIH1 VIL1
VIH1 VIL1 AS
t R/W E DB0 to DB7
VIH1
t PWEH
VIH1 VIL1 VIH1 VIL1 Er
AH
VIH1
tAH tEf
VIL1
t
t
DDR
tDHR
Valid data VOH1 *VOL1
VOH1 VOL1*
tcycE
NOTE: *VOL1 is assumed to be 0.8V at 2 MHZ operation.
Ta=25J ,Vdd=5.0O 0.5V Item Enable cycle time Enable pulse width (high level) Enable rise/fall time Address set-up time (RS, R/W to E) Address hold time Data delay time Data hold time Symbol tcycE PWEH tEr,tEf tAS tAH tDDR tDHR 5 Min 500 230 40 10 100 Typ 20 Max Unit ns ns ns ns ns ns ns
12-3.5 Initializing soft ware of LCM 12-3.5.1 8-bit interface
Power on
Wait for more than 15 ms after VCC rises to 4.5 V
BF can not be checked before this instruction.
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Function set ( Interface is 8 bits long. ) 0 0 0 0 1 1 * * * *
Wait for more than 4.1 ms
BF can not be checked before this instruction.
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Function set ( Interface is 8 bits long. ) 0 0 1 * * * * 0 0 1
Wait for more than 100 s
BF can not be checked before this instruction.
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Function set ( Interface is 8 bits long. ) 0 0 1 * * * * 0 0 1
BF can be checked after the following instructions. When BF is not checked , the waiting time between instructions is longer than execution instruction time.
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 0 1 0 0 1 N F * * 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 S I/D
Function set ( Interface is 8 bits long. Specify the number of display lines and font. ) The number of display lines and character font can not be changed after this point. Display off Display clear Entry mode set
Initialization ends
8-Bit Ineterface
12-3.5.2 4-bit interface
Power on
Wait for more than 15 ms after VCC rises to 4.5 V
BF can not be checked before this instruction.
RS R/W DB7 DB6 DB5 DB4 0 0 0 0 1 1
Function set ( Interface is 8 bits long. )
Wait for more than 4.1 ms
BF can not be checked before this instruction.
RS R/W DB7 DB6 DB5 DB4 0 0 0 1 1 0
Function set ( Interface is 8 bits long. )
Wait for more than 100 s
BF can not be checked before this instruction.
RS R/W DB7 DB6 DB5 DB4 0 0 0 1 1 0
Function set ( Interface is 8 bits long. )
RS R/W DB7 DB6 DB5 DB4 0 0 0 0 0 1 0 0 0 0 1 0 0 0 N F * * 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 I/D S
BF can be checked after the following instructions. When BF is not checked , the waiting time between instructions is longer than execution instruction time. Function set ( Set interface to be 4 bits long. ) Interface is 8 bits in length. Function set ( Interface is 4 bits long. Specify the number of display lines and character font. ) The number of display lines and character font can not be changed after this point. Display off Display clear Entry mode set
Initialization ends
4-Bit Ineterface

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