
NT6861
4
Pin Descriptions (continued)
Pin NO.
40 Pin
42 Pin
Designation
Reset Init.
I/O
Description
24
25
P30/SDA
P30
I/O
Open drain 5V Bi-direction I/O pin P30, shared with SDA pin of
I
2
C bus schmitt trigger buffer
25
26
P31/SCL
P31
I/O
Open drain 5V Bi-direction I/O pin P31, shared with SCL pin of
I
2
C
bus schmitt trigger buffer
26
27
P00/DAC8
P00
I/O
Bi- directional I/O pin, shared with open drain 5V D/A converter
output 8
27
28
P01/DAC9
P01
I/O
Bi- directional I/O pin, shared with open drain 5V D/A converter
output 9
28
29
P02/DAC10
P02
I/O
Bi- directional I/O pin, shared with open drain 5V D/A converter
output 10
29
30
P03/DAC11
P03
I/O
Bi- directional I/O pin, shared with open drain 5V D/A converter
output 11
30
31
P04/DAC12
P04
I/O
Bi- directional I/O pin, shared with open drain 5V D/A converter
output 12
31
32
P05/DAC13
P05
I/O
Bi- directional I/O pin, shared with open drain 5V D/A converter
output 13
32
33
P06/VSYNCO
P06
I/O
Bi- directional I/O pin, shared with vsync out
33
34
P07/HSYNCO
P07
I/O
Bi-directional I/O pin, shared with hsync out
34
35
DAC7
O
Open drain 12V, D/A converter output
35
36
DAC6
O
Open drain 12V, D/A converter output
36
38
DAC5
O
Open drain 12V, D/A converter output
37
39
DAC4
O
Open drain 12V, D/A converter output
38
40
DAC3
O
Open drain 12V, D/A converter output
39
41
HSYNCI
I
Debouncing & Schmitt trigger input pin for video horizontal
sync signal, internal pull high, shared with composite sync
input
40
42
VSYNCI/INTV
VSYNCI
I
Debouncing & Schmitt trigger input pin for video vertical sync
signal, intermally pull high, shared with external interrupt
source
-
6
NC
-
37
NC