6 / 15 page

SC802B
VER2.1
AKIHABARA INC.
Page 6 of 6
TIMING CHARACTERISICS
DB 0 ~ DB 7
R/ W
RS
tr
th 1
ts u 2
tc
Va l i d Da t a
th 2
tw
tf
th 1
E
ts u 1
Write Timing
ts u
E
DB 0 ~ DB 7
R/ W
RS
tr
th
tc
V a lid D a ta
td
td h
tw
tf
th
Read Timing
5. Operating Principles
a) Pin description
Pin NO.
Symbol
Level
Function
1
DB6
H/L
2
DB7
H/L
3
DB4
H/L
4
DB5
H/L
Data bits
5
R/W
H/L
H: Read signal L: Write signal
6
E
H→L
enable signal
7
V0
H/L
Variable voltage for LCD
8
RS
H/L
H: Instruction code
L: Data
9
VSS
0V
Ground
10
VDD
2.7V~5.5V
Supply voltage for logic
11
A
4.2V
Supply voltage for LED-Backlight
12
K
0V
Supply voltage for LED-Backlight