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Electrical parameters STM8L051F3
70/96 DS9178 Rev 4
Output driving current
Subject to general operating conditions for V
DD
and T
A
unless otherwise specified.
Table 36. Output driving current (high sink ports)
I/O
Type
Symbol Parameter Conditions Min Max Unit
High sink
V
OL
(1)
1. The I
IO
current sunk must always respect the absolute maximum rating specified in Table 13: Current
characteristics and the sum of I
IO
(I/O ports and control pins) must not exceed I
VSS
.
Output low level voltage for an I/O pin
I
IO
= +2 mA,
V
DD
= 3.0 V
-0.45V
I
IO
= +2 mA,
V
DD
= 1.8 V
-0.45V
I
IO
= +10 mA,
V
DD
= 3.0 V
-0.7V
V
OH
(2)
2. The I
IO
current sourced must always respect the absolute maximum rating specified in Table 13: Current
characteristics and the sum of I
IO
(I/O ports and control pins) must not exceed I
VDD
.
Output high level voltage for an I/O pin
I
IO
= -2 mA,
V
DD
= 3.0 V
V
DD
-0.45
-V
I
IO
= -1 mA,
V
DD
= 1.8 V
V
DD
-0.45
-V
I
IO
= -10 mA,
V
DD
= 3.0 V
V
DD
-0.7 - V
Table 37. Output driving current (true open drain ports)
I/O
Type
Symbol Parameter Conditions Min Max Unit
Open drain
V
OL
(1)
1. The I
IO
current sunk must always respect the absolute maximum rating specified in Table 13: Current
characteristics and the sum of I
IO
(I/O ports and control pins) must not exceed I
VSS
.
Output low level voltage for an I/O pin
I
IO
= +3 mA,
V
DD
= 3.0 V
-0.45
V
I
IO
= +1 mA,
V
DD
= 1.8 V
-0.45
Table 38. Output driving current (PA0 with high sink LED driver capability)
I/O
Type
Symbol Parameter Conditions Min Max Unit
IR
V
OL
(1)
1. The I
IO
current sunk must always respect the absolute maximum rating specified in Table 13: Current
characteristics and the sum of I
IO
(I/O ports and control pins) must not exceed I
VSS
.
Output low level voltage for an I/O pin
I
IO
= +20 mA,
V
DD
= 2.0 V
-0.45V
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