NT6881
Application Circuit 1 (Simple Keyboard with PS/2 Mouse)
V CC
PS/2 Mouse CLK
PS/2 Mouse DATA
PS/2 Mouse Power Control
P32
P33
P34
Vcc
GND
0.1 mF
10mF
P00
P01
P02
P03
P04
P05
P06
P07
P10
P11
P12
P13
P14
P15
P16
P17
P30
P31
LED0
LED1
LED2
Scroll Lock
Num Lock
Caps Lock
NT6881
RESET
*1
*1: RESET can be direct
connect to VCC if the
external reset is not
4.7KO
OSCI
used for module test.
6Mhz Crystal
OSCO
VDP
P20
P21
P22
P23
P24
P25
P26
P27
D+
To USB Cable
D-
VDM
1.5KO
VCP
4.7mF
P20
P21
P22
P23
P24
P25
P27
P26
#
F3
F4
C
F2
E
D
F
J
K133
3
P00
$
4
%
5
R
G
H
V
B
N
T
Y
P01
P02
P03
^
6
+
=
&
7
*
8
U
I
M
<
,
}
]
K
F6
K56
APP
>
.
(
9
O
L
F7
F8
P04
P05
+
Enter
(Num)
K107
6
Home
End
(Num)
.
9
3
Page
Up
*
-
Page
Down
PgDn
Del
PgUp
8
(Num) (Num)
P06
P07
5
2
0
Ins
/
Insert
Delete
Kor_R
Kor_L
(Num)
(Num)
7
1
End
Num
Lock
4
Space
Home
P10
L-Shift R-Shift
P11
P12
Back
|
K14
P
F11
Enter
F12
F9
F10
Space
\(K29)
_
-
:
;
{
[
|
)
0
"
'
?
/
\(K42)
P13
P14
P15
Scroll
Lock
Print
Screen
L-Alt
R-Alt
000
00
Pause
L-Ctrl
R-Ctrl
F5
L-WIN
TAB
P16
P17
Kor_R
Kor_L
Q
R-Win
~
`
!
1
@
2
Esc
K45
Z
X
K131
K132
A
S
P30
P31
Caps
Lock
W
F1
Notice: “Return Key” must be forced to PORT2 for remote wake up function. If not, remote wake up function will not work.
16
ETC [ ETC ]
