Digi NS9215 - Manual (Page 481)

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T I M I N G
DC electrical characteristics
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D C e l e c t r i c a l c h a r a c t e r i s t i c s
DC characteristics specify the worst-case DC electrical performance of the I/O
buffers that are guaranteed over the specified temperature range.
Inputs
All electrical inputs are 3.3V interface.
The processor I/O are 5 volt tolerant.
DC electrical inputs are provided below.
Sym Parameter Condition a
a
V
SS = 0V (GND)
Value Unit
V
IH
High-level input voltage:
LVTTL level Min 2.0 V
V
IL
Low-level input voltage:
LVTTL level Max 0.8 V
I
IH
High level input current (no pulldown)
Input buffer with pulldown V
INA
= V
DDA
Min/Max
Min/Max
-10/10
10/200
µA
µA
I
I
IL
Low-level input current (no pullup
Input buffer with pullup V
INA
= V
SS
Min/Max
Min/Max
-10/10
10/200
µA
µA
I
OZ
High-impedance leakage current V
OUTA
= V
DDA
or V
SS
Min/Max -10/10 µA