STM32F217RET7TR View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
STM32F217RET7TR Datasheet PDF : 173 Pages
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STM32F21xxx
Electrical characteristics
4. Based on characterization data, not tested in production.
Input/output AC characteristics
The definition and values of input/output AC characteristics are given in Figure 35 and
Table 45, respectively.
Unless otherwise specified, the parameters given in Table 45 are derived from tests
performed under the ambient temperature and VDD supply voltage conditions summarized
in Table 11.
Table 45. I/O AC characteristics(1)(2)
OSPEEDRy
[1:0] bit
value(1)
Symbol
Parameter
fmax(IO)out Maximum frequency(3)
00
tf(IO)out
Output high to low level fall
time
tr(IO)out
Output low to high level rise
time
fmax(IO)out Maximum frequency(3)
01
tf(IO)out
Output high to low level fall
time
tr(IO)out
Output low to high level rise
time
fmax(IO)out Maximum frequency(3)
10
tf(IO)out
Output high to low level fall
time
tr(IO)out
Output low to high level rise
time
Conditions
Min
CL = 50 pF, VDD > 2.70 V
-
CL = 50 pF, VDD > 1.8 V
-
CL = 10 pF, VDD > 2.70 V
-
CL = 10 pF, VDD > 1.8 V
-
-
CL = 50 pF, VDD = 1.8 V to
3.6 V
-
CL = 50 pF, VDD > 2.70 V
-
CL = 50 pF, VDD > 1.8 V
-
CL = 10 pF, VDD > 2.70 V
-
CL = 10 pF, VDD > 1.8 V
-
CL = 50 pF, VDD < 2.7 V
-
CL = 10 pF, VDD > 2.7 V
-
CL = 50 pF, VDD < 2.7 V
-
CL = 10 pF, VDD > 2.7 V
-
CL = 40 pF, VDD > 2.70 V
-
CL = 40 pF, VDD > 1.8 V
-
CL = 10 pF, VDD > 2.70 V
-
CL = 10 pF, VDD > 1.8 V
-
CL = 50 pF, 2.4 < VDD < 2.7 V -
CL = 10 pF, VDD > 2.7 V
-
CL = 50 pF, 2.4 < VDD < 2.7 V -
CL = 10 pF, VDD > 2.7 V
-
Typ Max Unit
-
2
-
2
MHz
- TBD
- TBD
- TBD
ns
- TBD
-
25
- 12.5(4)
MHz
-
50(4)
- TBD
- TBD
- TBD
ns
- TBD
- TBD
-
50(4)
-
25
MHz
- 100(4)
- TBD
- TBD
- TBD ns
- TBD
- TBD
Doc ID 17050 Rev 8
97/173
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