ACM2402B
Description
Ground Supply voltage for logic
LCD contrast adjust Register select Read / write Enable Data bit 0 Data bit 1 Data bit 2 Data bit 3 Data bit 4 Data bit 5 Data bit 6 Data bit 7
Anode for LED backlight Cathode for LED backlight
Function
0V +5V By user H: Data; L: Instruction code H: Data read, L: Data write Start signal for data read/write 8-bit interface 8-bit interface 8-bit interface 8-bit interface 4-bit or 8-bit interface 4-bit or 8-bit interface 4-bit or 8-bit interface 4-bit or 8-bit interface Power supply for LED/EL backlights Power supply for LED/EL backlights
AZ DISPLAYS, INC.
6/18/97
ACM2402B SERIES LCD MODULE
6.0 POWER SUPPLY
+5V
+5V
-5V
Standard temp range VR = 10KΩ ~ 20KΩ
7.0 BLOCK DIAGRAM
Wide temp range VR = 10KΩ ~ 20KΩ
- 1 VSS 2 VDD 3 VO 4 RS 5 R/W 6E
7 DB0 8
14 DB7
U2
U3
SEG1~40
SEG41~80
SEG81~120
U1
SEG1-----------SEG120...
