Datasheet

Electrical characteristics STM32L052x6 STM32L052x8
88/143 DocID025936 Rev 8
Output voltage levels
Unless otherwise specified, the parameters given in Table 60 are derived from tests
performed under ambient temperature and V
DD
supply voltage conditions summarized in
Table 25. All I/Os are CMOS and TTL compliant.
Table 60. Output voltage characteristics
Symbol Parameter Conditions Min Max Unit
V
OL
(1)
1. The I
IO
current sunk by the device must always respect the absolute maximum rating specified in Table 23.
The sum of the currents sunk by all the I/Os (I/O ports and control pins) must always be respected and
must not exceed ΣI
IO(PIN)
.
Output low level voltage for an I/O
pin
CMOS port
(2)
,
I
IO
= +8 mA
2.7 V ≤ V
DD
≤ 3.6 V
2. TTL and CMOS outputs are compatible with JEDEC standards JESD36 and JESD52.
-0.4
V
V
OH
(3)
3. The I
IO
current sourced by the device must always respect the absolute maximum rating specified in
Table 23. The sum of the currents sourced by all the I/Os (I/O ports and control pins) must always be
respected and must not exceed ΣI
IO(PIN)
.
Output high level voltage for an I/O
pin
V
DD
-0.4 -
V
OL
(1)
Output low level voltage for an I/O
pin
TTL port
(2)
,
I
IO
=+ 8 mA
2.7 V
≤ V
DD
≤ 3.6 V
-0.4
V
OH
(3)(4)
4. Guaranteed by characterization results.
Output high level voltage for an I/O
pin
TTL port
(2)
,
I
IO
= -6 mA
2.7 V
≤ V
DD
≤ 3.6 V
2.4 -
V
OL
(1)(4)
Output low level voltage for an I/O
pin
I
IO
= +15 mA
2.7 V
≤ V
DD
≤ 3.6 V
-1.3
V
OH
(3)(4)
Output high level voltage for an I/O
pin
I
IO
= -15 mA
2.7 V ≤ V
DD
≤ 3.6 V
V
DD
-1.3 -
V
OL
(1)(4)
Output low level voltage for an I/O
pin
I
IO
= +4 mA
1.65 V ≤ V
DD
< 3.6 V
-0.45
V
OH
(3)(4)
Output high level voltage for an I/O
pin
I
IO
= -4 mA
1.65 V
≤ V
DD
≤ 3.6 V
V
DD
-0.45 -
V
OLFM+
(1)(4)
Output low level voltage for an FTf
I/O pin in Fm+ mode
I
IO
= 20 mA
2.7 V ≤ V
DD
≤ 3.6 V
-0.4
I
IO
= 10 mA
1.65 V ≤ V
DD
≤ 3.6 V
-0.4
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