
NT6881
16
Application Circuit
1 (Simple Keyboard with PS/2 Mouse)
NT6881
Vcc
GND
LED0
LED1
LED2
OSCI
OSCO
VCP
Num Lock
Caps Lock
Scroll Lock
To USB Cable
D-
V
CC
VDM
VDP
4.7
μ
F
6Mhz Crystal
10
μ
F
1.5K
O
*1
*1
: RESET can be direct
connect to VCC if the
external reset is not
used for module test.
P20
P21
P23
P25
P26
0.1
μ
F
P06
P10
P12
P13
P15
P16
P30
P00
P01
P02
P04
Kor_L
D+
P00
P01
P02
P03
P04
P05
P06
P07
P10
P11
P12
P13
P14
P15
P16
P17
P30
P31
4.7K
O
P20
E
P21
F3
P22
D
P23
F4
P24
C
P25
K133
P26
F2
#
3
RESET
P33
R
T
F
G
V
B
%
5
^
6
+
=
$
4
U
I
Y
}
]
J
K
H
F6
M
<
N
,
>
.
*
8
(
9
&
7
K56
O
F7
L
APP
F8
9
PgUp
8
+
(Num)
5
(Num)
4
3
PgDn
2
Enter
(Num)
0
Ins
.
Del
/
(Num)
Num
Lock
*
(Num)
-
(Num)
Insert
Page
Up
Page
Down
Home
End
K107
6
Kor_R
7
Home
1
End
Space
Delete
L-Shift
R-Shift
P
Back
Space
{
[
:
;
|
\
(K29)
"
'
F11
|
\(K42)
Enter
/
F12
_
-
F9
)
0
F10
K14
L-Alt
R-Alt
Print
Screen
Scroll
Lock
000
Pause
L-WIN
R-Ctrl
L-Ctrl
F5
00
Q
W
Caps
Lock
A
S
R-Win
Esc
K45
Z
X
F1
~
`
@
2
!
1
K131
K132
Kor_L
Kor_R
TAB
P32
PS/2 Mouse CLK
PS/2 Mouse DATA
PS/2 Mouse Power Control
Notice: “Return Key” must be forced to PORT2 for remote wake up function. If not, remote wake up function will not work.