STM32F091VCY6TR View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
STM32F091VCY6TR
STMicroelectronics
STM32F091VCY6TR Datasheet PDF : 128 Pages
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Electrical characteristics
STM32F091xB STM32F091xC
Table 55. I/O AC characteristics(1)(2) (continued)
OSPEEDRy
[1:0] value(1)
Symbol
Parameter
Fm+
configuration
(4)
-
fmax(IO)out Maximum frequency(3)
tf(IO)out Output fall time
tr(IO)out Output rise time
fmax(IO)out Maximum frequency(3)
tf(IO)out Output fall time
tr(IO)out Output rise time
tEXTIpw
Pulse width of external
signals detected by the
EXTI controller
Conditions
CL = 50 pF, VDDIOx ≥ 2 V
CL = 50 pF, VDDIOx < 2 V
-
Min Max Unit
-
2 MHz
-
12
ns
-
34
-
0.5 MHz
-
16
ns
-
44
10
-
ns
1. The I/O speed is configured using the OSPEEDRx[1:0] bits. Refer to the STM32F0xxxx RM0091 reference manual for a
description of GPIO Port configuration register.
2. Guaranteed by design, not tested in production.
3. The maximum frequency is defined in Figure 24.
4. When Fm+ configuration is set, the I/O speed control is bypassed. Refer to the STM32F0xxxx reference manual RM0091
for a detailed description of Fm+ I/O configuration.
Figure 24. I/O AC characteristics definition
W U ,2 RXW
W I ,2 RXW
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6.3.15
NRST pin characteristics
The NRST pin input driver uses the CMOS technology. It is connected to a permanent pull-
up resistor, RPU.
Unless otherwise specified, the parameters given in the table below are derived from tests
performed under the ambient temperature and supply voltage conditions summarized in
Table 24: General operating conditions.
Table 56. NRST pin characteristics
Symbol
Parameter
Conditions
Min
Typ
VIL(NRST) NRST input low level voltage
-
-
-
VIH(NRST) NRST input high level voltage
-
0.445 VDD+0.398(1) -
Max
0.3 VDD+0.07(1)
-
Unit
V
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