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LCD Module User Manual
Customer
Ordering Code
DRAWING NO.
:
: TC1602D-01RA0
: m-TC1602D-01RA0_A00
Approved By Customer:
Date:
Approved By Checked By Prepared By
Vatronix Holdings Limited
ADD:5F,No.10 Blg,WenGuang Industrial Zone,XiLi,Nanshan District,Shenzhen,China
TEL:0086-755-83234801 33207536 FAX:0086-755-33207539
E-mail:sales@Vatronix.com
Http://www.vatronix.com
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Contents
1. Precautions in Use of LCD Module-----------------------------------P3
2. General Specification-------------------------------------------------------P3
3. Absolute Maximum Ratings----------------------------------------------P3
4. Electrical Characteristics--------------------------------------------------P4
5. Backlight Information-------------------------------------------------------P4
6. Optical Characteristics-----------------------------------------------------P5
7. Interface Description--------------------------------------------------------P6
8. Contour Drawing & Block Diagram--------------------------------------P7
9. Application circuit----------------------------------------------------------P8
10. LCD Function Description-----------------------------------------------P8
11. User instruction Definitions--------------------------------------------P10
11.1 Instruction table----------------------------------------------------P10
11.2 Instruction description --------------------------------------------P11
12. Timing Characteristics -------------------------------------------------P14
13. Initializing flow chart ----------------------------------------------------P15
14. Standard Character pattern-----------------------------------P17
15.Revision records------------------------------------------------------P18
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1. Precautions 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.
Storage: please storage in anti-static electricity container and clean environment.
2. General Specification
ITEM
STANDARD VALUE
UNIT
Number of dots
16X2 CHARs
Dots
Outline dimension
80.0(W)X36.0(H)X12.8MAX.(T)
mm
View area
65.0(W)X16.0(H)
mm
Active area
56.21(W)X11.50(H)
mm
Dot size
0.56(W)X0.66(H)
mm
Dot pitch
0.60(W)X0.70(H)
mm
LCD type
STN, Yellow-green,Positive,Transflective
View direction
6 o’clock
Backlight
RED LED
Controller
SPLC780D1-001
3. Absolute Maximum Ratings
ITEM
SYMBOL MIN.
TYP.
MAX.
UNIT
Operating Temperature
TOP -20
-
+70
Storage Temperature
TST -30
-
+80
Input Voltage
Supply Voltage For Logic
VI 0
VDD
0
-
-
VDD V
5.5 V
Supply Voltage For LCD
VDD-VEE
0
-
5V
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4. Electrical Characteristics
ITEM
SYMBOL CONDITION MIN. TYP. MAX. UNIT
Logic Voltage
VDD-VSS
-
4.5 5.0 5.5
V
Supply Voltage For LCD VDD-VO
Ta=25
--- 4.5
---
V
Input High Volt.
VIH
-
2.0 -
VDD
V
Input Low Volt.
VIL
-
-0.3 -
0.8 V
Output High Volt.
VOH
IoH=-0.2mA
2.4
-
VDD
V
Output Low Volt.
VOL
IoL=1.6mA 0 -
0.4 V
Supply Current
IDD - --- 1.0
5. Backlight Information
Absolute Maximum ratings (Ta=25 )
Item
Symbol
Conditions
Reverse voltage
Vr -
Reverse Current
Ir Vr=5.0V
Absolute maximum forward Current Ifm
Peak forward current
Ifp I msec plus 10% Duty Cycle
Power dissipation
Pd
Operating Temperature Range
Toper
Storage Temperature Range
Tst
Electrical/Optical Characteristics (Ta=250C,If=40mA)
---
Rating
5.0
80
100
240
340
-30~+70
-40~+80
mA
Unit
V
uA
mA
mA
mW
Color
Wavelength Spectral line half Operating Voltage(V) Forward
p(nm)
width (nm)
( 0.15V)
Current (mA)
RED
---
---
3.1 34
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6. Optical Characteristics
ITEM
SYMBOL CONDITION MIN TYP MAX
View Angle (V)
CR 2
10
120
(H)
CR 2
-45
45
Contrast Ratio CR
5
Response
Time
T rise
T fall
200 300
150 200
UNIT
deg.
deg.
ms
ms
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7.Interface Description
Pin No. Symbol
Level
Description
1 VSS
0V Ground
2 VDD 5.0V Power supply for Logic
3 VO (Variable) Supply voltage for LCD Panel
4 RS
H/L H:Data L :Instruction
5 RW
H/L H:Read L:Write
6E
H/L Enable signal
7~14 DB0~DB7
H/L Data bus. DB7 is used for Busy Flag .
15 A(LED+)
+5V Anode of LED Backlight
16 K(LED-)
0V Cathode of LED Backlight
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8. Contour Drawing & Block Diagram
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9. Application circuit
10. LCD 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.
Various Kinds of Operations according to RS and R/W Bits
RS R/W
Operation
0 0 IR write as an internal operation (display clear, etc.)
0 1 Read busy flag (DB7) and address counter (DB0 to DB7)
1 0 Write data to DDRAM or CGRAM (DR to DDRAM or CGRAM)
1 1 Read data from DDRAM or CGRAM (DDRAM or CGRAM to DR)
Busy Flag (BF)
When the BF= "High", it indicates that the LCM internal operation is being processed. So
during this time the next instruction cannot be accepted. BF can be read, when RS = Low
and R/W = High (Read Instruction Operation), through DB7 port. Before executing the next
instruction, be sure that BF is not High.
Address Counter (AC)
Address Counter(AC) stores DDRAM/CGRAM address. After writing into (reading from)
DDRAM/CGRAM, AC is automatically increased (decreased) by 1. When RS = "Low" and
R/W = "High", AC can be read through DB0 - DB6 ports.
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Display Data RAM (DDRAM)
This DDRAM is used to store the display data represented in 8-bit character codes. Below
figure is the relationships between DDRAM addresses and positions on the liquid crystal
display.
High bits
Low bits
AC (Hexadecimal) AC6 AC5 AC4 AC3 AC2 AC1 AC0
LCM DDRAM Address(In HEX)
Example: DDRAM addresses 4E
1001110
16 CHARs X 2 Lines Display
No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1st Line 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
2nd Line 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F
Character Generator ROM (CGROM)
The CGROM generate 5×8 dot or 5×10 dot character patterns from 8-bit character codes.
See “Standard Character pattern”.
Character Generator RAM (CGRAM)
In CGRAM, the user can rewrite character by program. Relationship between Character
Code (DDRAM) and Character Pattern (CGRAM) shown below.
Char Code(DDRAM data) CGRAM address
CGRAM data
D7 D6 D5 D4 D3 D2 D1 D0 A5 A4 A3 A2 A1 A0 P7 P6 P5 P4 P3 P2 P1 P0
0 0 0 0X0 0 0 0 0 0 0 0 0XXX0 1 1 1 0
. . 001 . 10001
. . 010 . 10001
. . 011 . 11111
. . 100 . 10001
. . 101 . 10001
. . 110 . 10001
. . 111 . 00000
. .. .
. .. .
. .. .
0 0 0 0X1 1 1 1 1 1 0 0 0XXX1 0 0 0 1
. . 001 . 10001
. . 010 . 10001
. . 011 . 11111
. . 100 . 10001
. . 101 . 10001
. . 110 . 10001
. . 111 . 00000
Pattern
number
Pattern 1
.
.
.
Pattern 8
X”: don’t care
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11. User instruction Definitions
11.1 Instruction table
Instruction
Instruction Code
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
Description
Execution
time
fOSC=270KHz)
Clear
Display
Write “20H”to DDRAM
0 0 0 0 0 0 0 0 0 1 and set DDRAM address
to “00H”from AC.
1.52ms
Set DDRAM address to
“00H”from AC and return
Return
Home
0
0
0
0
0
0
0
0
1
X
cursor to its original
position if shifted. The
1.52ms
contents of DDRAM are
not changed.
Entry Mode
Set
0
0
0
0
0
0
0
Assign cursor moving
1 I/D SH direction and make shift of
entire display enable.
37µ s
Display
Set display(D), cursor(C),
ON/OFF
0 0 0 0 0 0 1 D C B and blinking of cursor(B)
37µ s
control
on/off control bit.
Set cursor moving and
Cursor or
Display Shift
0
0
0
0
0
1 S/C R/L X
X
display shift control bit,
and the direction, without
37µ s
changing DDRAM data.
Set interface data
length(DL:4-bit/8-bit),
Function Set 0
0
0
0
1 DL N
F
X
X
numbers of display line(N:
1-line/2-line), display font
37µ s
type(F: 5X8 dots/ 5X11
dots)
Set CGRAM
Address
0
0
0
1
AC5
AC4
AC3
AC2
AC1
AC0
Set CGRAM address
address counter.
in
37µ s
Set DDRAM
Address
0
0
1
AC6
AC5
AC4
AC3
AC2
AC1
AC0
Set DDRAM address
address counter.
in
37µ s
Whether during internal
Read Busy
operation or can not be
Flag and
0 1 BF AC6 AC5 AC4 AC3 AC2 AC1 AC0 known by reading BF. The
0µ s
Address
contents of address
counter can also be read.
Write Data to
RAM
1
0
D7
D6
D5
D4
D3
D2
D1
D0
Write data into internal
RAM DDRAM/CGRAM).
43µ s
Read Data
from RAM
1
1
D7
D6
D5
D4
D3
D2
D1
D0
Read data from internal
RAM (DDRAM/CGRAM).
43µ s
Remark: X don’t care
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11.2 Instruction Description
1)Clear Display
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0000000001
Clear all the display data by writing "20H" (space code) to all DDRAM address, and set
DDRAM address to "00H" into AC (address counter). Return cursor to the original status.
Namely, bring the cursor to the left edge on first line of the display. Make entry mode
increment (I/D = "1").
2) Return Home
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
000000001 -
Return Home is cursor return home instruction. Set DDRAM address to "00H" into the
address counter. Return cursor to its original site and return display to its original status, if
shifted. Contents of DDRAM do not change.
3) Entry Mode Set
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0 0 1 I/D SH
Set the moving direction of cursor and display.
I/D: Increment / decrement of DDRAM address (cursor or blink)
When I/D = "High", cursor/blink moves to right and DDRAM address is increased by 1.
When I/D = "Low", cursor/blink moves to left and DDRAM address is decreased by 1.
* CGRAM operates the same as DDRAM, when read from or write to CGRAM.
SH: Shift of entire display
When DDRAM read (CGRAM read / write) operation or SH = "Low", shift of entire display is
not performed. If SH = "High" and DDRAM write operation, shift of entire display is
performed according to I/D value:
I/D ="1" : shift left,
I/D = "0" : shift right.
4) Display ON/OFF Control
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0 1DCB
Control display / cursor / blink ON / OFF 1 bit register.
D: Display ON / OFF control bit
When D = "High", entire display is turned on.
When D = "Low", display is turned off, but display data is remained in DDRAM.
C: Cursor ON / OFF control bit
When C = "High", cursor is turned on.
When C = "Low", Cursor is disappeared in current display, but I/D register remains its data.
B: Cursor Blink ON / OFF control bit
When B = "High", cursor blink is on, that performs alternate between all the high data and
display character at the cursor position.
When B = "Low", blink is off.
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5) Cursor or Display Shift
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 1 S/C R/L -
-
Shifting of right/left cursor position or display Without Writing or reading of display data,
shift right/left cursor position or display. This instruction is used to correct or search display
data. (refer to Table 4) During 2-line mode display, cursor moves to the 2nd line after 40th
digit of 1st line. Note that display shift is performed simultaneously in all the line. When
displayed data is shifted repeatedly, each line shifted individually. When display shift is
performed, the contents of address counter are not changed.
S/C R/L
Operation
0 0 Shift the cursor to the left, AC is decreased by 1.
0 1 Shift the cursor to the right, AC is increased by 1.
1 0 Shift all the display to the left, cursor moves according to the display.
1 1 Shift all the display to the right, cursor moves according to the display.
6) Function Set
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 1 DL N F - -
DL: Interface data length control bit
When DL = "High", it means 8-bit bus mode with MPU.
When DL = "Low", it means 4-bit bus mode with MPU.
When 4-bit bus mode, it needs to transfer 4-bit data by two times.
N: Display line number control bit
When N = "Low", it means 1-line display mode.
When N = "High", 2-line display mode is set.
F: Display font type control bit
When F = "Low", it means 5 x 8 dots format display mode
When F = "High", 5 x11 dots format display mode.
7) Set CGRAM Address
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 1 AC5 AC4 AC3 AC2 AC1 AC0
Set CGRAM address to AC. This instruction makes CGRAM data available from MPU.
8) Set DDRAM Address
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 1 AC6 AC5 AC4 AC3 AC2 AC1 AC0
Set DDRAM address to AC.
This instruction makes DDRAM data available from MPU. When 1-line display mode (N = 0),
DDRAM address is from "00H" to "4FH". In 2-line display mode (N = 1), DDRAM address is
the 1st line is from "00H" to "27H", and DDRAM address in the 2nd line is from "40H" to
"67H".
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9) Read Busy Flag & Address
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 1 BF AC6 AC5 AC4 AC3 AC2 AC1 AC0
This instruction shows whether LCM is in internal operation or not. If the resultant BF is
High, it means the internal operation is in progress and you have to wait until BF to be Low,
and then the next instruction can be performed. In this instruction you can read also the
value of address counter.
10) Write data to RAM
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
1 0 D7 D6 D5 D4 D3 D2 D1 D0
Write binary 8-bit data to DDRAM/CGRAM.
The selection of RAM from DDRAM, CGRAM, is set by the previous address set instruction:
DDRAM address set, CGRAM address set. RAM set instruction can also determine the AC
direction to RAM. After write operation, the address is automatically increased/decreased
by 1, according to the entry mode.
11) Read data from RAM
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
1 1 D7 D6 D5 D4 D3 D2 D1 D0
Read binary 8-bit data from DDRAM/CGRAM.
The selection of RAM is set by the previous address set instruction. If address set
instruction of RAM is not performed before this instruction, the data that read first is invalid,
because the direction of AC is not determined. If you read RAM data several times without
RAM address set instruction before read operation, you can get correct RAM data from the
second, but the first data would be incorrect, because there is no time margin to transfer
RAM data.
In case of DDRAM read operation, cursor shift instruction plays the same role as DDRAM
address
set instruction : it also transfer RAM data to output data register. After read operation
address counter is automatically increased/decreased by 1 according to the entry mode.
After CGRAM read operation, display shift may not be executed correctly.
* In case of RAM write operation, after this AC is increased/decreased by 1 like read
operation. In this time, AC indicates the next address position, but you can read only the
previous data by read instruction.
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12. Timing Characteristics
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13.Initializing flow chart
l 8-bit interface mode
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l 4-bit interface mode
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14. Standard Character pattern
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15. Revision records
Version Ref.page
Revision Items
s
A00 All pages New release
Date
2012.04.18
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