AZ DISPLAYS, INC.
COMPLETE LCD SOLUTIONS
SPECIFICATIONS FOR
LIQUID CRYSTAL DISPLAY
PART NUMBER: ACM 4004E SERIES
DATE: October 8, 2002
ACM4004E SERIES LCD MODULE
AZ DISPLAYS, INC. 10/08/02 1
1.0 MECHANICAL SPECS
1. Overall Module Size 190.0mm(W) x54.0mm(H) x 14.5mm(D) max for LED backlight
version
190.0mm(W) x 54.0mm(H) x 9.5mm(D) max for reflective version
2. Dot Size 0.50mm(W) x 0.55mm(H)
3. Charater Pitch 2.78mm(W) x 4.89mm(H)
4. Duty 1/16
5. Controller IC KS0066
6. LC Fluid Options STN
7. Polarizer Options Reflective, Transflective, Transmissive
8. Backlight Options
LED
9. Temperature Range Options Standard(0ºC ~ 50ºC), Wide(-20ºC ~ 70ºC)
2.0 ABSOLUTE MAXIMUM RATINGS
Item Symbol Min Typ Max Unit
Operating temperature (Standard) Top 0-50 ºC
Storage temperature (Standard) Tst -20 - 70 ºC
Operating temperature (Wide temperature) Top -20 -70 ºC
Storage temperature (Wide temperature) Tst -30 -80 ºC
Input voltage Vin Vss Vdd V
Supply voltage for logic Vdd- Vss 2.7 -5.5 V
Supply voltage for LCD drive Vdd- Vo 3.0 4.6 6.5 V
ACM4004E SERIES LCD MODULE
AZ DISPLAYS, INC. 10/08/02 2
3.0 ELECTRICAL CHARACTERISTICS
Item Symbol Condition Min Typ Max Unit
Input voltage (high) Vih H level 2.2 -Vdd V
Input voltage (low) Vil L level 0-0.6 V
0ºC -4.8 5.4
25ºC 4.2 4.6 -Recommended LC Driving
Voltage (Standard Temp) Vdd - Vo
50ºC 3.9 4.3 -
V
-20ºC -6.4 7.2
0ºC -4.8 -
50ºC -4.3 -
Recommended LC Driving
Voltage (Wide Temp) Vdd -Vo
70ºC 3.7 4.2 -
V
Power Supply Current Idd Vdd=5.0V,
fosc=270kHz -1.0 2.0 mA
LED Power Supply Voltage Vfled R=6.8Ω-4.3 5.0 V
LED Power Supply Current Ifled R=6.8Ω-500 800 mA
4.0 OPTICAL CHARACTERISTICS (Ta=25ºC, Vdd= 5.0V±0.25V, TN LC fluid)
Item Symbol Condition Min Typ Max Unit
Viewing angle (horizontal) θCr ≥ 4.0 -25 - - deg
Viewing angle (vertical) φCr ≥ 4.0 -30 -30 deg
Contrast Ratio Cr φ=0°, θ=0°-2-
Response time (rise) Tr φ=0°, θ=0°-120 150 ms
Response time (fall) Tf φ=0°, θ=0°-120 150 ms
ACM4004E SERIES LCD MODULE
AZ DISPLAYS, INC. 10/08/02 3
4.1 OPTICAL CHARACTERISTICS (Ta=25ºC, Vdd= 5.0V±0.25V, STN LC fluid)
Item Symbol Condition Min Typ Max Unit
Viewing angle (horizontal) θCr ≥ 2.0 -60 -35 deg
Viewing angle (vertical) φCr ≥ 2.0 -40 -40 deg
Contrast Ratio Cr φ=0°, θ=0°-6-
Response time (rise) Tr φ=0°, θ=0°-150 250 ms
Response time (fall) Tf φ=0°, θ=0°-150 250 ms
5.0 BLOCK DIAGRAM
LCD 40X4
U2
SEG1- 40
COM 16
8
LED BACKLIGHT
14. Vdd
13. Vss
12. Vo
11. RS
10. R/W
9. E1
8. DB0
1. DB7
~
A BL+
K BL-
U3
40 80 80
16
15. E2
COM 16 16
U1
U4
80
U5
SEG1- 40
U4 40 80
U6
SEGMENT SEGMENT
SEGMENT SEGMENT
U1
U & U1 4
ACM4004E SERIES LCD MODULE
AZ DISPLAYS, INC. 10/08/02 4
6.0 PIN ASSIGNMENT 7.0 POWER SUPPLY
Pin No. Symbol Function
1 DB7 Data bit 7
2 DB6 Data bit 6
3 DB5 Data bit 5
4 DB4 Data bit 4
5 DB3 Data bit 3
6 DB2 Data bit 2
7 DB1 Data bit 1
8 DB0 Data bit 0
9 E1 Enable Signal of U1
10 R/W Read / Write Signal
11 RS Register Select
12 Vo LCD contrast adjust
13 Vss Ground
14 Vdd +5V
15 E2 Enable Signal of U2
16 NC No Connect
8.0 TIMING CHARACTERISTICS
Item Symbol Test Condition Min. Typ. Max. Unit
Enable cycle time tCFig. a, Fig. b 500 - - ns
Enable pulse width tWFig. a, Fig. b 220 - - ns
Enable rise/fall time tR , tFFig. a, Fig. b --25ns
RS, R/W set up time tSU Fig. a, Fig. b 40 - - ns
RS, R/W hold time tHFig. a, Fig. b 10 - - ns
Data delay time tDFig. b - - 120 ns
Data set up time tDSU Fig. a 60 - - ns
Data hold time tDH Fig. a, Fig. b 20 - - ns
Vss
Vo
Vdd
Vr +5V
STANDARD TEMP RANGE
Vss
Vo
Vdd
Vr +5V
WIDE TEMP RANGE
-5V
Vr = 10KΩ ~ 20KΩ
+BL+ Power Supply for BL+
-BL- Power Supply for BL-
ACM4004E SERIES LCD MODULE
AZ DISPLAYS, INC. 10/08/02 5
VIH1
VIL1
VIL1
IH1
IL1V
VVIH1
VIL1
VIL1
VIH1
IL1V
VIH1
IL1V
Valid Data
tSU tH
tWtH
tF
tRtDSU tDH
tC
RS
R/W
E
DB0~DB7
VIL1
VIH1
VIL1
Fig. a Interface timing (data write)
VIH1
VIL1
VIH1
IH1
IL1V
VVIH1
VIL1
VIH1
VIH1
IL1V
VIH1
IL1V
Valid Data
tSU tH
tWtH
tF
tRtDSU tDH
tC
RS
R/W
E
DB0~DB7
VIL1
tD
VIH1
IL1V
Fig. b Interface timing (data read)
ACM4004E SERIES LCD MODULE
AZ DISPLAYS, INC. 10/08/026
9.0 MECHANICAL DIAGRAM
AZ Displays, Inc.
ACM4004E SERIES LCD MODULE
AZ DISPLAYS, INC. 10/08/02
7
10.0 RELIABILITY TEST
Evaluations and Assessment*
Storage Condition Content Current
Consumption Oozing Contrast Other Appearances
Operation at high
temperature and
humidity
40ºC,90%
RH,240hrs Twice initial
value or less none More than 80% of
initial value No abnormality
High temperature
storage 60ºC,
240hrs Twice initial
value or less none More than 80% of
initial value No abnormality
Low temperature
storage -20ºC,
240hrs Twice initial
value or less More than 80% of
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.
ACM4004E SERIES LCD MODULE
AZ DISPLAYS, INC. 10/08/02 8
11.0 DISPLAY INSTRUCTION TABLE
COMMAND R
SR/
WDB
7DB
6DB
5DB
4DB
3DB
2DB
1DB
0DESCRIPTION Executing
time
fosc=250khz
Clear Display
0 0 0
0 0 0 0 0 0 1 Clears Display & Returns to Address 0. 1.64ms
Cursor at
Home
0
0 0
0 0 0 0 0 1 xReturns Cursor to Address 0. Also
returns the display being shifted to the
original position. DDRAM contents
remain unchanged.
1.64ms
Entry Mode
Set
0 0
0
0 0 0 0 1 I/D SI/D: Set Cursor Moving Direction
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
40µs
Display
ON/OFF
Control
000000 1 D C BDisplay D=1: Display on
D=0: Display off
Cursor C=1: Cursor on
C=0: Cursor off
Brink B=1: Brink on
B=0: Brink off
40µs
Cursor /
Display
Shift
0 0
0001 S/C R/L x x Moves cursor or shifts the 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
40µs
Function
Set
00001DL NFx 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
40µs
Set CG RAM
Address 0 0 0 1 Character Generator (CG) RAM
Address Sets CG RAM address. CG RAM data is
sent and received after this instruction. 40µs
Set DD RAM
Address
0 0 1 Display Data (DD) RAM Address /
Cursor Address Sets DD RAM address. DD Ram data
is sent and received after this
instruction.
40µs
Busy Flag /
Address Read
0
1B
FAddress counter used for both DD &
CG RAM address Reads Busy Flag (BF) and address
counter contents. 40µs
Write Data 1
0Write Data Writes data into DDRAM or CGRAM. 46µs
Read Data
1 1 Read Data Reads data from DDRAM or CGRAM. 46µs
X: Don't Care
ACM4004E SERIES LCD MODULE
AZ DISPLAYS, INC. 10/08/02
9
12.0 STANDARD CHARACTER PATTERNS
Note: The character generator RAM is the RAM with which the user can rewrite character patterns by program.
