LMG7420PLFC-X 240*128 Dots
FEATURES
♦ Black on White STN TYPE
♦ Transmissive Mode
♦ High Brightness CFL Backlight
♦ High Contrast LC Material
♦ Built-in LCD Controller T6963C
MECHANICAL DATA
Item Value Unit
Module Dimensions 159.4*101*11 mm
Viewing Area 123*68 mm
Resolution 240*128 dots
Dot Size 0.47*0.47 mm
Dot Pitch 0.5*0.5 mm
Weight 180 g
OPTICAL DATA
Item Symbol Condition Min Typ Max Unit
Contrast Ratio K ¯=10¡,
Q=0¡,
Note 1
-18 - -
Brightness - T=25¡C,
IL=5mA,
Note 8
60.0 80.0 - cd/m2
Viewing
Direction
- 6 oÕclock
Viewing Angle ¯2 - ¯1 K=2,
Note 1
30 40 - degree
Response Time
(Rise)
tR¯=10¡,
Q=0¡,
Note 1
- 160 210 ms
Response Time
(Fall)
tF¯=10¡,
Q=0¡,
Note 1
- 110 160 ms
ABSOLUTE MAXIMUM RATINGS
Item Symbol Condition Min Max Unit
Supply Voltage
(Logic)
VDD
- VSS - 0 6.5 V
Supply Voltage
(LC Drive)
VDD - VEE - 0 20.5 V
Input Voltage VI- -0.3 0.3+VDD V
Operating
Temperature
TOP Note 5,6 0 50 ¡C
Storage
Temperature
TST Note 7 -20 60 ¡C
DATA INTERFACE PIN ASSIGNMENT
Pin No Symbol Level Function
A1 VSS (0V) - Ground
A2 VDD (+5V) - Power supply for logic circuit
A3 V0 - Power supply for LCD drive
A4 C/D - Not WR=Low and C/D=High for
Command Write, C/D= Low for
Data Write, Not RD = Low and
C/D=High for Status Read, C/D =
Low for Data Read
A5 Not WR - DW=Low for Data Write
A6 Not RD - RD=Low for Data read
A7-A14 DB0 - DB7 - Display data
A15 Not CE - Chip enable (Not CE must be Low)
A16 Not RET - Reset
A17 VEE (-15V) - Power supply for LCD drive
A18 Not DISP OFF - NC for Display ON, GND forDisplay
OFF
A19 F/S - Character font selection (F/S=High
for 6x8 font, F/S=Low for 8x8 font)
A20 Reverse - Display mode reverse
CFL INTERFACE PIN ASSIGNMENT
Pin No Symbol Level Function
1 GND - CFL Ground
2 NC - No connection
3 NC - No connection
4 HV - Power supply for CFL
ELECTRICAL CHARACTERISTICS
Item Symbol Condition Min Typ Max Unit
Supply Voltage
(Logic)
VDD
- VSS - 4.75 5.0 5.25 V
Supply Voltage
(LC Drive)
VEE - VSS - -14.5 -15.0 -15.5 V
Supply Current IDD Note 2 - 11.7 14.0 mA
IEE Note 2 - 2.5 4.0 mA
Input Voltage
(High Level)
VIH High Level 0.8*
VDD
- VDD V
Input Voltage
(Low Level)
VIL Low Level 0 - 0.2*
VDD
V
Frame
Frequency
fFLM Note 4 - 75 - Hz
Duty Ratio - 1/128 -
Recommended
LC Drive
Voltage
VDD -VODuty=1/128
T=0¡C,
¯=10¡,
Note 3
- 16.9 - V
Duty=1/128
T=25¡C,
¯=10¡,
Note 3
- 15.8 - V
Duty=1/128
T=50¡C,
¯=10¡,
Note 3
- 15.2 - V
Backlight Lamp
Voltage
VBL T=25¡C - 360 - Vrms
Backlight Lamp
Frequency
fBL T=25 ¡C 30 70 85 kHz
Backlight Lamp
Current
IBL T=25 ¡C 2.5 5.0 5.5 mArms
Lamp Start
Voltage
VST=25¡C,
Note 9
(1000) - - V
TIMING CHARACTERISTICS
Item Symbol Min Typ Max Unit
C/D set up time tCDS 100 - - ns
C/D hold time tCHD 10 - - ns
Not CE, Not RD, Not WR
pulse width
Not tCE, Not
tRD, Not tWR
80 - - ns
Data set up time tDS 80 - - ns
Data hold time tDH 40 - - ns
Access time tACC - - 150 ns
Output hold time tOH 10 - 50 ns
INVERTER AND CONNECTORS
Recommended Inverter Starter Kit
HITACHI INVC191 START74xx
Lamp Connector Lamp Housing Connector
MITSUMI M63M83-04 M61M73-04, M60-04-30-114P or
M60-04-30-134P
Note1: Definition of optical data, see page 84
Note 2: fFRAME=75Hz, VDD-V0=15.8V, Ta=25¡C
Note 3: Recommended LCD driving may fluctuate about +- 1.0V by each module.
Note 4: Need to make sure of flickering and rippling of display when setting the
FRAME Frequency in your set.
Note 5: Background colour of the LCD changes depending on temperature.
Between 40-50¡C optical characteristics of the LCD like contast and viewing
angle change but the display remains readable.
Note 6: Higher starting voltage of CFL and higher LCD driving voltage are needed
while operating at 0¡C. The lifetime of CFL will be reduced at 0¡C
Note 7: Storage at -20¡C < 48 hr, Ta at 60¡C < 168 hr
Note 8: Measurement after 10 minutes of CFL operating. Brightness control: 100%
Note 9: Starting discharge voltage is increased when LCM is operating at lower
temperature. Please check the characteristics of inverter before applying.