MC4002D7-SBLW EVERBOUQUET, MC4002D7-SBLW Datasheet - Page 19

• Manufacturer Part Number: MC4002D7-SBLW
• Description: LCD MODULE, ALPHANUMERIC, 40X2
• Manufacturer: EVERBOUQUET

Specifications of MC4002D7-SBLW

• No. Of Digits / Alpha: 80
• Character Count X Line: 40 X 2
• Character Size: 5.55mm
• Supply Voltage: 5V
• Display Area Width: 154mm
• Display Area Height: 15.3mm
• Operating: RoHS Compliant
• Display Mode: Transflective
• Backlighting Colour: White
• Rohs Compliant: Yes

There are different voltages that supply to SPLC780A1 s pins (V5 - 1) to obtain LCD drive waveform. The
relations of the bias, duty factor and supply voltages are shown as belows:
SUPPLY VOLTAGE FOR LCD DRIVE
Sunplus Technology Co., Ltd.
The power connections for LCD (1/4 Bias, 1/5 Bias) are shown belows:
1 / 4 Bias
(1/8,1/11 Duty)
VDD
V1
V2
V3
V4
V5
Supply
Voltage
Duty Factor
V1
V2
V3
V4
V5
-V or Gnd
( +5V )
Bias
R
R
R
R
VR
VDD - 1/4 V
VDD
VDD
VDD
VDD
V
1 / 8 , 1 / 11
LCD
- 1/2 V
- 1/2 V
- 3/4 V
1 / 4
- V
LCD
LCD
LCD
LCD
LCD
17
VDD
VDD
VDD
VDD
VDD
1 / 5 Bias
(1/16 Duty)
1 / 16
- 1/5 V
- 2/5 V
- 3/5 V
- 4/5 V
1 / 5
- V
VDD
LCD
V1
V2
V3
V4
V5
LCD
LCD
LCD
LCD
VDD
-V or Gnd
( +5V )
Rev.: 1.2
R
R
R
R
VR
SPLC780A1
V
LCD
2000.05.05