Datasheet

DEM 40491 FGH-PW Product Specification
Version: 3 PAGE: 4
4. BLOCK DIAGRAM
SEG40
SEG160
COM16
SEG160
Control signal
Segment Driver
ST7063X2
Bare Chip
LCD PANEL
4lineX40characters
Segment Driver
ST7063X2
Bare Chip
LCD
Controller
LSI
ST7066-0A-B
<1>
Bare Chip
E1
R/W
DB0~DB7
LCD
Controller
LSI
ST7066-0A-B
<2>
Bare Chip
E2
V0
VDD
VSS
RS
COM16
SEG40
Control signal
5. PIN ASSIGNMENT
Pin No. Symbol Function
1 DB7
2 DB6
3 DB5
4 DB4
5 DB3
6 DB2
7 DB1
8 DB0
Display Data Signal
9 E1 Read/Write Enable Signal of second ST7066
10 R/W Read or Write Select Signal
11 RS Select Display Data ("H") or Instructions ("L")
12 V0 Power Supply for LCD
13 VSS Ground
14 VDD Power supply
15 E2 Read/Write Enable Signal of first ST7066
16 NC NO Connect
17 K (LED-) 0V interface of backlight Cathode
18 A (LED+) 5V interface of backlight Anode