I/O Port Characteristics; Table 42. I/O Static Characteristics - STMicroelectronics STM32L151RE Manual

STM32L151xE STM32L152xE
6.3.13

I/O port characteristics

General input/output characteristics
Unless otherwise specified, the parameters given in
performed under the conditions summarized in
compliant.
Symbol Parameter
V Input low level voltage
IL
V Input high level voltage
IH
I/O Schmitt trigger voltage
V
(2)
hys
hysteresis
I Input leakage current
lkg
Weak pull-up equivalent
R
(5)(1)
PU
resistor
Weak pull-down equivalent
R
(5)
PD
resistor
C I/O pin capacitance
IO
1. Guaranteed by test in production
2. Guaranteed by design.
3. With a minimum of 200 mV.
4. The max. value may be exceeded if negative current is injected on adjacent pins.
5. Pull-up and pull-down resistors are designed with a true resistance in series with a switchable PMOS/NMOS. This
MOS/NMOS contribution to the series resistance is minimum (~10% order).

Table 42. I/O static characteristics

Conditions
TC and FT I/O
BOOT0
TC I/O
FT I/O
BOOT0
TC and FT I/O
BOOT0
V V V
≤ ≤
SS IN DD
I/Os with LCD
V V V
≤ ≤
SS IN DD
I/Os with analog
switches
V V V
≤ ≤
SS IN DD
I/Os with analog
(4)
switches and LCD
V V V
≤ ≤
SS IN DD
I/Os with USB
V V V
≤ ≤
SS IN DD
TC and FT I/Os
FT I/O
V V 5V
≤ ≤
DD IN
V V
=
IN SS
V V
=
IN DD
-
DocID025433 Rev 8
Table 48 are derived from tests
Table 13. All I/Os are CMOS and TTL
Min Typ
-
-
(2)
0.45 V +0.38
DD
(2)
0.39 V +0.59
DD
(2)
0.15 V +0.56
DD
- 10% V
- 0.01
-
-
-
-
-
-
30 45
30 45
-
Electrical characteristics
Max
(1)(2)
- 0.3 V
DD
(2)
- 0.14 V
DD
- -
- -
- -
(3)
-
DD
-
- ±50
- ±50
- ±50
- ±250
- ±50
- ±10
60
60
5 -
89/134
Unit
V
nA
µA
kΩ
kΩ
pF
113