SPECIFICATIONS FOR LCD MODULE CUSTOMER CUSTOMER PART NO.

A MP I R E
SPECIFICATIONS FOR
LCD MODULE
CUSTOMER
CUSTOMER PART NO.
AMPIRE PART NO.
AC-202A
APPROVED BY
DATE
APPROVED BY
CHECKED BY
AMPIRE CO., LTD.
ORGANIZED BY
1
RECORD
OF
REVISION
Revision Date
Page
Contents
1999/9/1
-
New Release
AMPIRE CO., LTD.
2
1
FEATURES
(1) Display format : 20 characters × 2 lines
(2) Construction : STN LCD, Bezel, Zebra and PCB.
(3) Optional LED or EL back-light.
(4) Controller : SED1278 or Equivalent.
(5) 5V single power input. (Special request for 3.3V driving, built-in DC/DC converter.)
(6) Normal / Extended temperature type.
(7) Excellent LC : VOP maintains at 5V for whole temp. range, no need extra temp.
compensation circuit.
2
NUMBERING SYSTEM
AC-202A _ _ _ _ - _
1234 5
No
1
2
3
4
5
Code Value
G
Description
STN gray type LCD
Y
STN yellow green type LCD
S
STN negative type LCD
A
Reflective type / 6:00 view
B
Reflective type / 12:00 view
I
Transflective type / 6:00 view
J
Transflective type / 12:00 view
T
Negative type / 6:00 view
U
Negative type / 12:00 view
None
Without backlight
L
5V LED
E
EL
None
Without backlight
Y
Yellow-green (LED)
B
Blue (EL)
W
White (EL)
None
H
Normal temperature type
Remark
LCD Type
Polarizer / Viewing Angel
Backlight type
Backlight color
LCM temperature type
Extended temperature type
AMPIRE CO., LTD.
3
3
4
MECHANICAL DATA
Parameter
Stand Value
Unit
Dot size
0.60(W) × 0.65(H)
mm
Dot pitch
0.65(W) × 0.70(H)
mm
Character size
3.20(W) × 5.55(H)
mm
Viewing area
83.0(W) × 18.5(H)
mm
Module size
116.0(W) ×37.0(H) × 10.0max (T)
mm
Module size
(w/ LED back-light)
116.0(W) ×37.0(H) × 14.5max (T))
mm
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Min
Max
Unit
Logic Circuit Supply Voltage
VDD-VSS
-0.3
7.0
V
LCD Driving Voltage
VDD-VO
-0.3
10.0
V
Input Voltage
VI
-0.3
VDD+0.3
V
Operating Temp.
TOP
0
50
°C
Storage Temp.
TSTG
-20
70
°C
Operating Temp.
TOP
-20
70
°C
Storage Temp.
TSTG
-30
80
°C
Normal temp. type
Extended temp. type
AMPIRE CO., LTD.
4
5
ELECTRO-OPTICAL CHARACTERISTICS
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Note
----- Electronic Characteristics ----Logic Circuit
Supply Voltage
VDD-VSS
--
4.5
5.0
5.5
V
LCD Driving
Voltage
VDD-VO
-20 °C
4.75
5.0
5.25
V
0 °C
4.75
5.0
5.25
25 °C
4.75
5.0
5.25
50 °C
4.75
5.0
5.25
70 °C
4.75
5.0
5.25
VIH
--
0.7 VDD
--
VDD
V
VIL
--
VSS
--
0.3 VDD
V
IDD
VDD = 5V
--
1.2
1.7
mA
Input Voltage
Logic Supply
Current
0 ~ 50 °C for
Normal Temp.
type
-20 ~ 70 °C for
Extended Temp.
type
----- Optical Characteristics ----Contrast
CR
25°C
--
5
--
Rise Time
tr
25°C
--
80
120
ms
Fall Time
tf
25°C
--
150
300
ms
Viewing Angle
Range
θf
25°C &
--
40
--
θb
CR≥2
--
35
--
θl
--
35
--
θr
--
35
--
--
64
--
Frame Frequency
fF
25°C
Note 1
Note 2
Note 3
Deg.
Hz
----- LED Back-light Characteristics ----Forward Voltage
VF
--
--
4.05
4.3
V
Forward Current
IF
VF=4.05V
--
500
--
mA
Bare LED Luminous intensity VF=4.05V
--
100
--
cd/m2
--
35
--
cd/m2
LCM Luminous intensity
VF=4.05V
Supply Voltage
between A&K
A
* LED Dice number = 2×21=42
K
AMPIRE CO., LTD.
5
----- EL Back-light Characteristics ----Parameter
Min
Typ
Max
Unit
Driving Voltage
--
110
--
Vrms
Frequency
--
400
--
Hz
Bare EL Luminous intensity
--
45
--
cd/m2
LCM Luminous intensity
--
15
--
cd/m2
Note
(NOTE 1) Contrast ratio :
CR = (Brightness in OFF state) / (Brightness in ON state)
( NOTE 2 ) Response time :
(NOTE 3) Viewing angle
AMPIRE CO., LTD.
6
BLOCK DIAGRAM & INTERFACE
COM
1-16
E
RS
R/W
DB0~DB7
SED1278
LCD Panel
20*2 Chars
SEG 1-40
SEG
41-100
6
Driver
VDD
VSS
D, M, CL1, CL2
No.
1
Symbol
VSS
Function
2
VDD
3
VO
Contrast Adjustment
4
RS
Data/Instruction Select
5
R/W
6
E
7
DB0
Data Bus
8
DB1
Data Bus
9
DB2
Data Bus
10
DB3
Data Bus
11
DB4
Data Bus
12
DB5
Data Bus
13
DB6
Data Bus
14
DB7
Data Bus
15
LED_A
LED Power Supply + (5V)
16
LED_K
LED Power Supply - (5V)
Ground (0V)
Supply Voltage for Logic (+5V or +3.3V)
Read/Write Select
Enable Signal
AMPIRE CO., LTD.
7
7
POWER SUPPLY
LCD Module
VDD(+5V)
LCD Bias
Circuit
VDD(+3.3V)
LCD Bias
Circuit
R1
VO
VR
VO
-3.3V
R2
LCD Module
VSS
R8
VR
DC/DC
Converter
5V Power Input
VSS
3.3V Power Input
JP1
VDD
JP2
R9
R10
JP4
A
K
LED_BACKLIGHT
1
1
LED_A (Pin 15)
3
1
LED_K (Pin 16)
2
2
2
JP3
JP5
3
There are four methods to light up the LED back-light : (Please indicate while ordering.)
(1) Built-in current-limit resistor(R9/R10). Add +5V between Pin15&16. (Default)
(2) Add +4.05V between LED A & K directly.
(3) Short JP2 and add +4.05V between Pin15&16.
(4) Built-in current-limit resistor(R9/R10) and short JP1&JP3. Use the same power (+5V) with
the logic circuit.
LCM
Using EL Back-light
EL1
EL Back-light
AC110V(400Hz)
EL2
AMPIRE CO., LTD.
8
8
TIMING CHARACTERISTICS
Write Operation
Item
Symbol
VDD=5V
VDD=3.3V
Min
Max
Min
Max
Enable cycle time
tcycE
500
--
1000
--
Enable pulse width
PWEH
230
--
450
--
Enable rise/fall time
tEr,tEf
--
20
--
25
Address set-up time
(RS, R/W to E)
tAS
40
--
60
--
Address hold time
tAH
10
--
20
--
Data set-up time
tDSW
80
--
195
--
Data hold time
tH
10
--
10
--
AMPIRE CO., LTD.
Unit
ns
9
Read Operation
Item
Symbol
VDD=5V
VDD=3.3V
Min
Max
Min
Max
Enable cycle time
tcycE
500
--
1000
--
Enable pulse width
PWEH
230
--
450
--
Enable rise/fall time
tEr,tEf
--
20
--
25
Address set-up time
(RS, R/W to E)
tAS
40
--
60
--
Address hold time
tAH
10
--
20
--
Data delay time
tDDR
--
120
--
360
Data hold time
tDRH
5
--
5
--
AMPIRE CO., LTD.
Unit
ns
10
9
INSTRUCTION SET
Instruction
Clear
Display
Return
Home
RS R/
W
0 0
Code
D7 D6 D5 D4 D3 D2 D1 D0
0
0
0
0
0
0
Description
0
1 Write”20H” to DDRAM and set DDRAM
address to “00H” from AC
0 1 -- Sets DD RAM address to “00H” from AC
and return cursor to its original position if
shifted. The contents of DDRAM are not
changed.
1 I/D SH Assign cursor moving direction and enable
the shift of entire display.
D C B Set display (D), cursor (C), and blink of
cursor (B) on/off control bit.
E.T.(fOSC
=270
KHZ)
1.53 ms
0
0
0
0
0
0
0
Entry Mode
SET
Display
ON/OFF
Control
Cursor or
Display
Shift
Function
Set
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1 S/ R/
C L
0
0
0
Set CG
RAM
Address
Set DD
RAM
Address
Read Busy
Flag and
Address
Write Data
to RAM
Read Data
from RAM
0
0
0
0
0
1 AC AC AC AC AC AC AC Sets DD RAM address in address counter.
6
5 4 3 2 1 0
39 µS
0
1
0 µS
1
0
1
1
BF AC AC AC AC AC AC AC Whether during internal operation or not
6
5 4 3 2 1 0 can be known by reading BF. The contents
of address counter can also be read.
D7 D6 D5 D4 D3 D2 D1 D0 Writes data into internal RAM (DD RAM
/CG RAM).
D7 D6 D5 D4 D3 D2 D1 D0 Reads data from internal RAM (DD RAM
/CG RAM).
--
-- Set cursor moving and display shift control
bit, and the direction, without changing of
DDRAM data.
0 1 DL N F -- -- Sets interface data length (DL:8-bit/4-bit),
number of display lines (N:2-line/1-line)
and , display font type (F:5x11dots/5x8
dost).
1 AC AC AC AC AC AC Sets CG RAM address in address counter.
5 4 3 2 1 0
1.53 ms
39 µS
39 µS
39 µS
39 µS
39 µS
43 µS
43 µS
* “--“ : don’t care
Note : When an MPU program with checking the Busy Flag(DB7) is made, it must be
necesssary1/2Fosc is necessary for executing the next instruction by the falling edge of the ‘E’
signal after the Busy Flag(DB7) goes to “LOW”.
AMPIRE CO., LTD.
11
10 INITIALIZATION SEQUENCE
11 DD RAM ADDRESS
CHAR.
1
2
3
…
18
19
20
LINE 1
00
01
02
…
11
12
13
LINE 2
40
41
42
…
51
52
53
AMPIRE CO., LTD.
12
12 FONT TABLE
0
CG
0 RAM
(1)
1
2
Higher 4-bit (D4 to D7) of Character Code (Hexadecimal)
3
4
5
6
7
8
9 A
B
C
D
E
F
CG
1 RAM
(2)
CG
2 RAM
(3)
CG
3 RAM
(4)
Lower 4-bit (D0 to D3) of Character Code (Hexadecimal)
CG
4 RAM
(5)
CG
5 RAM
(6)
CG
6 RAM
(7)
CG
7 RAM
(8)
CG
8 RAM
(1)
CG
9 RAM
(2)
CG
A RAM
(3)
CG
B RAM
(4)
CG
C RAM
(5)
CG
D RAM
(6)
CG
E RAM
(7)
CG
F RAM
(8)
* Character codes (00H-0FH) of SED1278F are assigned to the area of character generator RAM (CG RAM). The CG ROM
of the SED1278F is masked; if you wish to have your own CG ROM, consult S-MOS Marketing Department for conversion
of the masked ROM.
AMPIRE CO., LTD.
13
13 QUALITY AND RELIABILITY
13.1 TEST CONDITIONS
Tests should be conducted under the following conditions :
Ambient temperature : 25 ± 5°C
Humidity
: 60 ± 25% RH.
13.2 SAMPLING PLAN
Sampling method shall be in accordance with MIL-STD-105E, inspection level II,
normal inspection, and single sampling plan tables for normal, tightened, and reduced
inspection.
13.3 ACCEPTABLE QUALITY LEVEL
A major defect is defined as one that could cause failure to or materially reduce
the usability of the unit for its intended purpose. A minor defect is one that does not
materially reduce the usability of the unit for its intended purpose or is an infringement from
established standards and has no significant bearing on its effective use or operation.
13.4 APPEARANCE
An appearance test should be conducted by human sight at approximately 30 cm
distance from the LCD module under flourescent light. The inspection area of LCD panel
shall be within the range of following limits.
AMPIRE CO., LTD.
14
13.5 INSPECTION QUALITY CRITERIA
Item
Description of defects
Function
Dimension
Black spots
Short circuit or Pattern cut
Deviation from drawings
Ave . dia . D
area A
area B
Disregard
D≤0.2
3
4
0.2<D≤0.3
2
3
0.3<D≤0.4
0.4<D
0
1
Width W, Length L
A
B
disregard
W≤0.03
3
4
0.03<W≤0.05
1
1
0.05<W≤0.07 , L≤3.0
See line criteria
Average diameter D 0.2 < D < 0.5 mm
for N = 4 , D > 0.5 for N = 1
Rainbow color or newton ring.
Black lines
Bubbles in
polarizer
Color
uniformity
Glass
Scratches
Contrast
ratio
Response
time
Viewing
angle
Class of
Defects
Major
Major
Minor
Acceptable level
(%)
0.65
1.5
2.5
Minor
2.5
Minor
2.5
Minor
2.5
Obvious visible damage.
Minor
2.5
See note 1
Minor
2.5
See note 2
Minor
2.5
See note 3
Minor
2.5
Zone A active area
Zone B viewing area
AMPIRE CO., LTD.
15
13.6 RELIABILITY
Test Conditions
Test Item
Normal Temp. type
Extended Temp. type
High Temperature Operation
50±3°C , t=96 hrs
70±3°C , t=96 hrs
Low Temperature Operation
0±3°C , t=96 hrs
-20±3°C , t=96 hrs
High Temperature Storage
70±3°C , t=96 hrs
80±3°C , t=96 hrs
Low Temperature Storage
Thermal Shock Test
Humidity Test
Note
1,2
1,2
-20±3°C , t=96 hrs
-30±3°C , t=96 hrs
-30°C ~ 25°C ~ 80°C
-20°C ~ 25°C ~ 70°C
5 min. 30 min.
30 m in. 5 min. 30 min. 30 min.
1,2
( 1 cycle )
( 1 cycle )
Total 5 cycle
Total 5 cycle
40 °C, Humidity 90%, 96 hrs
1,2
Sweep frequency : 10 ~ 55 ~ 10 Hz/1min
Amplitude : 0.75mm
Vibration Test (Packing)
2
Test direction : X.Y.Z/3 axis
Duration : 30min/each axis
Note 1 : Condensation of water is not permitted on the module.
Note 2 : The module should be inspected after 1 hour storage in normal conditions
(15-35°C , 45-65%RH).
Definitions of life end point :
l
Current drain should be smaller than the specific value.
l
Function of the module should be maintained.
l
Appearance and display quality should not have degraded noticeably.
l
Contrast ratio should be greater than 50% of the initial value.
AMPIRE CO., LTD.
16
14 HANDLING PRECAUTIONS
(1) An LCD module is a fragile item and should not be subjected to strong mechanical
shocks.
(2) Avoid applying pressure to the module surface. This will distort the glass and cause a
change in colour.
(3) Under no circumstances should the position of the bezel tabs or their shape be modified.
(4) Do not modify the display PCB in either shape or positioning of components.
(5) Do not modify or move location of the zebra or heat seal connectors.
(6) The device should only be soldered to during interfacing. Modification to other areas of
the board should not be carried out.
(7) In the event of LCD breakage and resultant leakage of fluid do not inhale, ingest or make
contact with the skin. If contact is made rinse immediately.
(8) When cleaning the module use a soft damp cloth with a mild solvent, such as Isopropyl or
Ethyl alcohol. The use of water, ketone or aromatic is not permitted.
(9) Prior to initial power up input signals should not be applied.
(10) Protect the module against static electricity and observe appropriate anti-static
precautions.
AMPIRE CO., LTD.
17
15 OUTLINE DIMENSION
AMPIRE CO., LTD.
18

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