GDM2004D Datasheet, PDF (2/9 Pages) List of Unclassifed Manufacturers – SPECIFICATIONS OF LCD MODULE

GDM2004D-FL-YBW
Block diagram
VDD
VSS
V0
RS
R/W
E
DB0-DB7
LED+
LED-
LCD
CONTROLLER
AND
DRIVER
COM
SEG
R
LCD PANEL
LED BKL
SEG
LCD
DRIVER
Interface pin description
Pin no. Symbol
External
connection
1
VSS
2
VDD
Power supply
3
V0
4
RS
MPU
5
R/W
MPU
6
E
MPU
7~10 DB0~DB3
MPU
11~14
15
16
DB4~DB7
LED+
LED-
Contrast adjust
A）For Single Source
MPU
LED BKL power
Supply
Function
Signal ground for LCM (GND)
Power supply for logic (+5V) for LCM
Contrast adjust
Register select signal
Read/write select signal
Operation (data read/write) enable signal
Four low order bi-directional three-state data bus lines.
Used for data transfer between the MPU and the LCM.
These four are not used during 4-bit operation.
Four high order bi-directional three-state data bus lines.
Used for data transfer between the MPU
Power supply for BKL (Anode)
Power supply for BKL (GND)
For Module with Normal Temperature Range Fluid
VDD~V0: LCD Driving voltage
VR: 10k~20k
VER 1.0
2/9
2003/12/09