User Manual
MG260 Product Specification
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agreement.
2.9.2.4 Keyboard
Row/Col
umn
sca
nn
i
ng
freque
n
c
y
=
200
Hz.
Signal
Pin
I/O
I/O
type
Level
Comment
RO
W0
33
I/O
CMOS
2.8
V/1
X
Internal pull-down resistor
RO
W1
35
I/O
CMOS
2.8
V/1
X
Internal pull-down resistor
RO
W2
37
I/O
CMOS
2.8
V/1
X
Internal pull-down resistor
RO
W3
39
I/O
CMOS
2.8
V/1
X
Internal pull-down resistor
COL0
43
I/O
CMOS
2.8
V/1X
Internal
p
ull-up
resistor
COL1
45
I/O
CMOS
2.8
V/1X
Internal
p
ull-up
resistor
COL2
47
I/O
CMOS
2.8
V/1X
Internal
p
ull-up
resistor
COL3
49
I/O
CMOS
2.8
V/1X
VIL
≤
0.
3
x
VCC*
VI
H
≥
0.7
x
VCC*
VOL
≤
0.
1
V
VO
H
≥
2.7
V
Internal
p
ull-up
resistor
*VCC
=
2.
8
V
2.9.2.5 Status indicators
Signal
Pin
I/O
I/O
type
Level
Comment
FLAS
H
_
LE
D
72
O
CMOS
2.8
V/2
X
VOL
≤
0.
1
V
VO
H
≥
2.7
V
GPS_T
I
MEPULSE
17
O
CMOS
2.8
V
VOL
≤
0.
1
V
VO
H
≥
1.7
V