Datasheet

Electrical characteristics STM32L010F4/K4
70/91 DS12323 Rev 2
Figure 21. I/O AC characteristics definition
6.3.14 NRST pin characteristics
The NRST pin input driver uses CMOS technology. It is connected to a permanent pull-up
resistor, R
PU
, except when it is internally driven low (see Table 51).
Unless otherwise specified, the parameters given in Table 51 are derived from tests
performed under ambient temperature and V
DD
supply voltage conditions summarized in
Table 15 .
11
F
max(IO)out
Maximum frequency
(4)
C
L
= 30 pF,
V
DD
= 2.7 V to 3.6 V
-35
MHz
C
L
= 50 pF,
V
DD
= 1.8 V to 2.7 V
-10
t
f(IO)out
t
r(IO)out
Output rise and fall time
C
L
= 30 pF,
V
DD
= 2.7 V to 3.6 V
-6
ns
C
L
= 50 pF,
V
DD
= 1.8 V to 2.7 V
-17
-t
EXTIpw
Pulse width of external
signals detected by the
EXTI controller
-8-ns
1. The I/O speed is configured using the OSPEEDRx[1:0] bits. Refer to the line reference manual for a
description of GPIO Port configuration register.
2. BOOT0/PB9 maximum input frequency is 10 KHz (1.8 V < V
DD
< 2.7 V) and 5 MHz (2.7 V < V
DD
<3.6V).
3. Guaranteed by design. Not tested in production.
4. The maximum frequency is defined in Figure 21.
Table 50. I/O AC characteristics
(1)(2)
(continued)
OSPEEDRx
[1:0] bit
value
(1)
Symbol Parameter Conditions Min Max
(3)
Unit
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