Datasheet

STM8S105xx
Electrical characteristics
10.3.6 I/O port pin characteristics
General characteristics
Subject to general operating conditions for V
DD
and T
A
unless otherwise specified. All
unused pins must be kept at a fixed voltage: using the output mode of the I/O for example
or an external pull-up or pull-down resistor.
Table 38: I/O static characteristics
Symbol Parameter Conditions Min Typ Max Unit
V
IL
Input low level voltage V
DD
= 5 V -0.3 0.3 x
V
DD
V
V
IH
Input high level voltage 0.7 x
V
DD
V
DD
+
0.3 V
V
V
hys
Hysteresis
(1)
700 mV
R
pu
Pull-up resistor V
DD
= 5 V, V
IN
= V
SS
30 55 80 kΩ
t
R
, t
F
Rise and fall time(10 % -
90 %)
Fast I/Os load = 50 pF 35
(2)
Standard and high sink
I/Os load = 50 pF
125
(2)
ns
Fast I/Os load = 20 pF 20
(2)
Standard and high sink
I/Os load = 20 pF
50
(2)
I
lkg
Input leakage current,
analog and digital
V
SS
≤ V
IN
≤ V
DD
±1.0
(3)
µA
I
lkg ana
Analog input leakage
current
V
SS
≤ V
IN
≤ V
DD
±250
(3)
nA
I
lkg(inj)
Leakage current in
adjacent I/O
(3)
Injection current ±4 mA
±1.0
(3)
µA
Notes:
(1)
Hysteresis voltage between Schmitt trigger switching levels. Based on characterization results, not tested in
production.
(2)
Data guaranteed by design.
(3)
Data based on characterization results, not tested in production.
DocID14771 Rev 13 61/99