Hardware Hacking

1 VSS 0V Ground
2 VDD 5.0V Supply Voltage for logic
3 VO (Variable) Operating voltage for LCD
4 RS H/L H: DATA, L: Instruction code
5 R/W H/L H: Read(MPU(Module) L: Write(MPU(Module)
6 E H(L Chip enable signal
7 DB0 H/L Data bit 0
8 DB1 H/L Data bit 1
9 DB2 H/L Data bit 2
10 DB3 H/L Data bit 3
11 DB4 H/L Data bit 4
12 DB5 H/L Data bit 5
13 DB6 H/L Data bit 6
14 DB7 H/L Data bit 7

151 A LED +
161 K LED –

These are very commomly used LCD/VFDs controllers for wiring directly to the parallel port of a computer as there are a myriad of software applications to display information from a PC.

4 line by 40 character display

1 DB6 I/O Data bus line 6
2 DB7 I/O Data bus line 7
3 DB4 I/O Data bus line 4
4 DB5 I/O Data bus line 5
5 DB3 I/O Data bus line 3
6 DB2 I/O Data bus line 2
7 DB0 I/O Data bus line 0
8 DB1 I/O Data bus line 1
9 E1 Enable signal row 0 & 1
10 E2 Enable signal row 2 & 3
11 RS Instruction input
12 Read/Write to LCD module
13 Vee 0 to -5 VDC – LCD Voltage [0 to -5 VDC] (Contrast adjust)
14 Vcc 5 VDC +/- 5% – Power supply (+5V)
15 Vss Power supply (GND)
16 Vss Power supply (GND)

pin1 Vlogic
pin2 Reset
pin3 Db4
pin4 Db5
pin5 Db6
pin6 Db7
pin7 Rs/Cs
pin8 Rw/Sid
pin9 Nc
pin10 ???
pin11 A1,A2 Led
pin12 K1,K2 Led
pin13 Gnd
pin14 Icol1 keyboard
pin15 Icol2 keyboard
pin16 Icol3 keyboard
pin17 Icol4 keyboard
pin18 Icol5 keyboard

Lcd chip: S6A0073 (uzual) / HD66712

pin6 Vlogic (max. +3.6V )
pin7 SDA
pin8 SCLK
pin9 D/_C
pin10 Gnd
pin11 Gnd
pin14 _CS
pin15 _RESET
pin19 Led -
pin21 Led +

Lcd chip: KS0723 / S6B1713 ( equ SED1565 )
Resolution: 96×49

Pin8 _Reset
Pin7 _Cs
Pin6 Gnd
Pin5 Sdata
Pin4 Sclk
Pin3 Vdigital 1.8V
Pin2 Vbooster in 2.7V
Pin1 Vlcd (from internal dc/dc converter)

Lcd chip: Seiko-Epson
Resolution: 96×65