ATM1602B

 User’s Guide
ATM1602B
Liquid Crystal Display Module
CONTENTS
Mechanical Diagram… … … … … … … … … … … … … … … … .… … …
2
Absolute Maximum Ratings… … … … … … … … … … … … … … … …
3
Description of Terminals… … … … … … … … … … … … … … … … .... 3
Optical
Characteristics… … … … … … … … … … … … … … … … … …
Electrical Characteristics
DC Characteristics… … … … … … … … .… … … … … … …
AC Characteristics … … … … … … … … … .… … … … … ...
4
4
4
5
Write Cycle … … … … … … … … … … … … … .… … … … … … … … ..… .. 5
Timing Characteristics… … … … … … … … … … ....… … …
6
Block Diagram… … … … … … … … … ..… … … … … … … .. 7
Display Commands… … … … … … … … .… … … … … … … … … … … …
8
Reliability and Lift Time… … … … … … … … .… … … … … … … … … … .
9
Standard Character Pattern… … … … … … … … .… … … … … … … … .
10
1
Mechanical Diagram
2
Absolute Maximum Ratings
Item
Symbol
Min
Max
Unit
Power Voltage
VDD -VSS
0
7.0
V
Input Voltage
Vin
VSS
VDD
Operating Temperature Range
T OP
0
+50
Storage Temperature Range
T ST
-20
+60
℃
*wide Temperature range is available
(operating/storage temperature as wide as -20~+70/-30~+80℃)。
Description Of Terminals
Pin
No.
1
2
3
Pin
Name
VSS
VDD
VO
Input/
Output
—
—
—
4
RS
INPUT
MPU
5
R/W
Input
MPU
6
E
Input
MPU
DB0-DB3
Input
MPU
DB4-DB7
Input
MPU
7
/
10
11
/
14
15
/
16
LED “+”
Input
LED “-”
External
Connection
Power
Supply
LED
BACKLIGHT
POWER
SUPPLY
Function
VSS:GND
VDD: +5V
VLCD adjustment
Register select signal
“0”:Instruction register (when writing)
Busy flag & address counter (When reading)
“1”:Data register (when writing & reading)
Read/write select signal
“0”for writing , “1”for reading
Operation (data read/write) enable signal
Low-order lines of data bus with 3-state,
bi-directional function for use in data
transaction with the MPU. These lines are
not used when interfacing with a 4-bit
microprocessor.
High-order lines of data bus with 3-state,
bi-directional function for use in data
transactions with the MPU. DB7 may also be
used to check the busy flag.
LED“+”VOLTAGE TYPE:4.2V
MAX : 4.5V
LED“-”: GND
3
Optical Characteristics
for TN Type Display Module (Ta=25℃, VDD=5.0V±0.25V)
Item
Symbol Condition Min.
Typ.
Viewing angle
θ
Cr≥4
-25
-
Φ
-30
-
Contrast ratio
Cr
-
2
Response time(rise)
Tr
-
-
120
Response time(fall)
Tr
-
-
120
Max.
-
30
-
150
150
Unit
deg
for STN Type Display Module (Ta=25℃, VDD=5.0V±0.25V)
Item
Symbol Condition Min.
Typ.
Viewing angle
θ
Cr≥2
-60
-
Φ
-40
-
Contrast ratio
Cr
-
6
Response time(rise)
Tr
-
-
150
Response time(fall)
Tr
-
-
150
Max.
35
40
-
250
250
Unit
deg
-
ms
ms
-
ms
ms
Electrical Characteristics
DC Characteristics
Parameter
Supply voltage for LCD
Input voltage
Supply current
Input leakage current
“H”level input voltage
“L”level input voltage
“H”level output voltage
“L”level output voltage
Backlight supply power
Symbol
VDD-VO
VDD
IDD
ILKG
VIH
VIL
VOH
VOL
VF
Conditions
TA=25℃
VDD=5.0V;TA=25℃
Twice initial value
or less
LOH= -0.25MA
LOL=1.6MA
Min.
—
4.7
—
—
2.2
0
Type
4.6
—
1.5
—
—
—
Max.
—
5.5
2.5
1.0
VDD
0.6
Unit
V
V
mA
μA
V
V
2.4
—
—
—
—
4.2
—
0.4
4.5
V
V
V
4
AC Characteristics
Read Cycle (V DD=5.0V+10%,V SS=OV, Ta=25℃)
Parameter
Symbol
Test pin
Enable cycle time
tc
E
Enable pulse width
tw
E
Enable rise/fall time
tr, tf
E
RS,R/W setup time
tsu
RS; R/W
RS.R/W address hold time
th
RS; R/W
Read data output delay
tD
DB0-DB7
Read data hold time
tDH
DB0-DB7
Min.
500
300
-
100
10
60
20
Type
-
-
-
-
-
-
-
Max.
-
-
25
-
-
190
-
Min.
500
300
-
100
10
60
10
Type
-
-
-
-
-
-
-
Max.
-
-
25
-
-
-
-
Unit
ns
Write Cycle
Parameter
Enable cycle time
Enable pulse width
Enable rise/fall time
RS,R/W setup time
RS,R/W address hold time
Data setup time
Data hold time
Symbol
tc
tw
tr,tf
tsu1
th1
t su2
t h2
Test pin
E
E
E
RS; R/W
RS; R/W
DB0-DB7
DB0-DB7
Unit
ns
5
Timing Characteristics
6
Block Diagram
LCD PANEL
8 OR 16
LCD
CONTROLLER
AND
40
DRIVER LCD
DRIVER
+5V
VDD
VDD-V0
VR
LCM
V0
VSS
GND
VDD-Vo: LCD DRIVING VOLTAGE
VR: 10K-20KΩ
7
Display command
Parameter
Clear
Display
Cursor home
Entry Mode
Set
Display
on/off
RS
R/W DB7 DB6
DB5 DB4
DB3
DB2
DB1 DB0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1/D
*
S
0
Cursor /
Display Shift
0
System Set
0
0
0
0
0
0
0
0
0
0
Set CG RAM
Address
0
0
0
Set DD RAM
Address
0
0
1
Read Busy
Flag/Address
Counter
0
1
BF
Write Data
Read Data
1
1
0
1
Write data
Read data
0
0
1
0
1
DL
1
S/C
N
1
CG RAM address
corresponds to
cursor address
DD RAM address
Address counter used
for both DD&CG RAM
address
D
R/L
F
C
*
*
B
*
*
Note
Executing
time
fosc=250kh
z
1.64ms
1.64ms
DB1=1:Increment
DB1=0:Decrement
DB0=1:The display is
shifted
DB0=0:The display is
not shifted
DB2=1:Display on
DB2=0: Display off
DB1=1:Cursor on
DB1=0: Cursor off
DB0=1:Brinking on
DB0=0: Brinking off
DB3=1:Shifts
display
one
character
DB2=1:Right shift
DB2=0:Left shift
DB4=1:8 bits
DB4=0:4 bits
DB3=1:2 lines display
(1/16 duty)
DB3=0:1 line display
DB2=1:5 × 10 dots ,
1/11 duty
DB2=1:5 ×7 dots , 1/8
duty
The address length that
can be set is 64
address
The address length that
can be set is 80
address
DB7=1:Busy (instruction
not accepted)
DB7=0:Ready(for
instruction)
40μs
40μs
40μs
40μs
40μs
40μs
0μs
46μs
46μs
DD RAM Address:
1
Address for line 1
Address for line 2
2 3 4 5 6
00 01 02 03
40 41 42 43
7
04
44
8 9 10 11 12 13 14 15 16
05 06 07 08 09 A
B C D E F
45 46 47 48 49 4A 4B 4C 4D 4E 4F
8
Reliability and Life Time 1.Reliability Test
Storage Condition
Content
Operation at high
temperature and
humidity
High temperature
storage
Low temperature
storage
40℃,90%
RH,240hrs
Evaluations and Assessment*
Current
Oozing
Contrast
consumption
Twice initial
none
More than 80% of
value or less
initial value
60℃,
240hrs
-20℃,
240hrs
Twice initial
value or less
Twice initial
value or less
none
More than 80% of
initial value
More than 80% of
initial value
Other appearances
No abnormality
No abnormality
No abnormality
*Evaluations and assessment to be made two hours after returning to room
temperature (25℃±5℃).
*The LCDs subjected to the test must not have dew condensation.
2. Liquid crystal panel service life
50,000 hours minimum at 25±10℃,45±20%RH.
9
Standard Character Pattern
Note: The user can specify any pattern for character-generator RAM.
10