Table 43. Output Voltage Characteristics - STMicroelectronics STM32L151CB Manual

Electrical characteristics
Output driving current
The GPIOs (general purpose input/outputs) can sink or source up to ±8 mA, and sink or
source up to ±20 mA (with the non-standard V
In the user application, the number of I/O pins which can drive current must be limited to
respect the absolute maximum rating specified in
•
The sum of the currents sourced by all the I/Os on V
consumption of the MCU sourced on V
I
VDDΣ
•
The sum of the currents sunk by all the I/Os on V
consumption of the MCU sunk on V
I
VSSΣ
Output voltage levels
Unless otherwise specified, the parameters given in
performed under ambient temperature and V
Table 13. All I/Os are CMOS and TTL compliant.
Symbol
(1)(2)
V Output low level voltage for an I/O pin
OL
(3)(2)
V Output high level voltage for an I/O pin
OH
(1)(4)
V Output low level voltage for an I/O pin
OL
(3)(4)
V Output high level voltage for an I/O pin
OH
(1)(4)
V Output low level voltage for an I/O pin
OL
(3)(4)
V Output high level voltage for an I/O pin
OH
1. The I current sunk by the device must always respect the absolute maximum rating specified in
IO
I (I/O ports and control pins) must not exceed I
IO
2. Tested in production.
3. The I current sourced by the device must always respect the absolute maximum rating specified in
IO
of I (I/O ports and control pins) must not exceed I
IO
4. Based on characterization data, not tested in production.
82/129
(see Table 11).
(see Table 11).

Table 43. Output voltage characteristics

Parameter
VSS
VDD
DocID17659 Rev 10
STM32L151x6/8/B, STM32L152x6/8/B
/V
OL OH
Section
cannot exceed the absolute maximum rating
DD,
cannot exceed the absolute maximum rating
SS
Table 43
supply voltage conditions summarized in
DD
Conditions
I = +8 mA
IO
2.7 V < V
DD
I =+ 4 mA
IO
1.65 V < V
DD
I = +20 mA
IO
2.7 V < V
DD
.
.
specifications given in
6.2:
plus the maximum Run
DD,
plus the maximum Run
SS
are derived from tests
Min
-
< 3.6 V
2.4
-
< 2.7 V
V -0.45
DD
-
< 3.6 V
V -1.3
DD
Table 11
Table 11
Table 43.
Max Unit
0.4
-
0.45
V
-
1.3
-
and the sum of
and the sum