STM32F373C8 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
STM32F373C8
STMicroelectronics
'STM32F373C8' PDF : 131 Pages View PDF
Electrical characteristics
STM32F373xx
Input/output AC characteristics
The definition and values of input/output AC characteristics are given in Figure 19 and
Table 54, respectively.
Unless otherwise specified, the parameters given are derived from tests performed under
ambient temperature and VDD supply voltage conditions summarized in Table 22.
Table 54. I/O AC characteristics(1)
OSPEEDRy
[1:0] value(1)
x0
01
11
FM+
configuration
(4)
-
Symbol
fmax(IO)out
tf(IO)out
tr(IO)out
fmax(IO)out
tf(IO)out
tr(IO)out
fmax(IO)out
tf(IO)out
tr(IO)out
fmax(IO)out
tf(IO)out
tr(IO)out
tEXTIpw
Parameter
Conditions
Maximum frequency(2)
Output high to low level
fall time
Output low to high level
rise time
Maximum frequency(2)
Output high to low level
fall time
Output low to high level
rise time
CL = 50 pF, VDD = 2 V to 3.6 V
CL = 50 pF, VDD = 2 V to 3.6 V
CL = 50 pF, VDD = 2 V to 3.6 V
CL = 50 pF, VDD = 2 V to 3.6 V
CL = 30 pF, VDD = 2.7 V to 3.6 V
Maximum frequency(2)(3) CL = 50 pF, VDD = 2.7 V to 3.6 V
CL = 50 pF, VDD = 2 V to 2.7 V
Output high to low level
fall time
CL = 30 pF, VDD = 2.7 V to 3.6 V
CL = 50 pF, VDD = 2.7 V to 3.6 V
CL = 50 pF, VDD = 2 V to 2.7 V
Output low to high level
rise time
Maximum frequency(2)
CL = 30 pF, VDD = 2.7 V to 3.6 V
CL = 50 pF, VDD = 2.7 V to 3.6 V
CL = 50 pF, VDD = 2 V to 2.7 V
Output high to low level
fall time
Output low to high level
rise time
CL = 50 pF, VDD = 2 V to 3.6 V
Pulse width of external
signals detected by the
-
EXTI controller
Min Max Unit
-
2 MHz
- 125(3)
ns
- 125(3)
-
10 MHz
-
25(3)
ns
-
25(3)
-
50 MHz
-
30 MHz
-
20 MHz
-
5(3)
-
8(3)
-
12(3)
-
5(3)
ns
-
8(3)
-
12(3)
-
2 MHz
-
12
ns
-
34
10
-
ns
1. The I/O speed is configured using the OSPEEDRx[1:0] bits. Refer to the RM0313 reference manual for a description of
GPIO Port configuration register.
2. The maximum frequency is defined in Figure 19.
3. Guaranteed by design.
4. The I/O speed configuration is bypassed in FM+ I/O mode. Refer to the STM32F37xx reference manual RM0313 for a
description of FM+ I/O mode configuration
88/137
DocID022691 Rev 7
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