Quark Up R1270 - R1270CEVB - Technical Information Manual
15
R1270 supply and I/O connector electrical characteristics
2
Pin name
Pin No.
Parameter
Min
Type
Max
Unit
GND
1,3
TCK
2
VIL
-0.3
0.75
V
VIH
1.5
3.6
V
Input current
10
μA
/RESET
4
VIL
-0.3
0.6
V
VIH
1.65
3.6
V
Interna l pul l -up res i s ta nce
47
kΩ
Pul s e wi dth
10
μs
TXD
5
VOL
0
0.55
V
VOH
2.5
3.5
V
Output current
3.0
mA
TMS
6
VIL
-0.3
0.75
V
VIH
1.5
3.6
V
Input current
10
μA
RXD
7
VIL
-0.3
0.75
V
VIH
1.5
3.6
V
Input current
10
μA
TDI
8
VIL
-0.3
0.75
V
VIH
1.5
3.6
V
Input current
10
μA
5V_USB
9
Input DC vol ta ge
4.75
5.00
5.25
V
Input current
20
mA
TDO
10
VOL
0
0.55
V
VOH
2.5
3.5
V
Output current
3.0
μA
BSL_SEL
11
VIL
-0.3
1.0
V
VIH
2.2
3.6
V
Internal pull-down res i s ta nce
10
kΩ
TST
12
VIL
-0.3
0.75
V
VIH
1.5
3.6
V
Internal pull-down res i s ta nce
45
kΩ
D+,D-
13,15
VOL
0
0.3
V
VOH
2.8
3.6
V
Impeda nce
28
44
Ω
GPIO[0:3]
14, 16,
18, 20
VOL
0
0.55
V
VOH
2.5
3.5
V
Output current
3.0
mA
VIL
-0.3
0.75
V
VIH
1.5
3.6
V
Input current
10
μA
2
Exceeding maximum values reported in the table may cause permanent damage to the model.
