Digi ConnectCore

Module specifications Electrical characteristics
ConnectCore for i.MX51 Hardware Reference Manual
136
Parameter Symbol Min Typ Max Unit
High-level input voltage VIH 0.7 x VDD - VDD V
Low-level input voltage VIL 0 - 0.3 x VDD V
Input Current (no/pull) Iin - - 1 µA
Input Current (22kΩ/pull-up) Iin - - 161 µA
Input Current (47kΩ/pull-up) Iin - - 76 µA
Input Current (100kΩ/pull-up) Iin - - 36 µA
Input Current (100kΩ/pull-down) Iin - - 36 µA
Keeper circuit resistance - - 17 - kΩ
Output driver impedance Rout
- Low drive
- Medium drive
- High drive
- Max drive
80
40
27
20
150
75
51
38
250
125
83
62
Ω
The following table shows the Ultra-High Voltage I/O (UHVIOxx) DC parameters. The “xx” reference
signifies the supply voltage level.
Parameter Symbol Min Typ Max Unit
Supply Voltage VDD
xx = 31
xx = 33
3.0
3.0
3.15
3.3
3.6
3.6
V
High-level output voltage Voh
(USB, WLAN)
VDD-0.15
VDD-0.43
-
-
VDD-0.15
VDD-0.43
V
Low-level output voltage Vol
(USB, WLAN)
-
- --
0.15
0.43
V
High-level output current Ioh
- Low drive
- Medium drive
- High drive
-5.1
-10.2
-15.3
- -
mA
Low-level output current Iol
- Low drive
- Medium drive
- High drive
5.1
10.2
15.3
- -
mA
High-level input voltage VIH 0.7 x VDD - VDD V
Low-level input voltage VIL 0 - 0.3 x VDD V
Input Current (no/pull) Iin - - 10 µA
Input Current (22kΩ/pull-up) Iin - - 202 µA