Datasheet

DEM 16228 FGH-PW Product Specification
Version: 3 PAGE:
4
4. BLOCK DIAGRAM
5. PIN ASSIGNMENT
Pin No. Symbol Function
1 VLED- Control the BKL to GND
2 VSS Signal ground for LCM(GND)
3 V
DD
Power supply for logic(+5V) for LCM
4 V0 Contrast adjust
5 RS Register select signal
6 R/W Read/write select signal
7 E Operation (data read/write) enable signal
8~11 DB0~DB3
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.
12~15 DB4~DB7
Four high order bi-directional three-state data bus lines.
Used for data transfer between the MPU.