STM32F103xC, STM32F103xD, STM32F103xE
Electrical characteristics
Input/output AC characteristics
The definition and values of input/output AC characteristics are given in
and
respectively.
Unless otherwise specified, the parameters given in
are derived from tests
performed under ambient temperature and V
DD
supply voltage conditions summarized in
Table 47.
I/O AC characteristics
(1)
Parameter
Conditions
Min
Max
2
125
(3)
C
L
= 50 pF, V
DD
= 2 V to 3.6 V
125
(3)
10
25
(3)
C
L
= 50 pF, V
DD
= 2 V to 3.6 V
25
(3)
C
L
= 30 pF, V
DD
= 2.7 V to 3.6 V
F
max(IO)out
Maximum frequency
(2)
C
L
= 50 pF, V
DD
= 2.7 V to 3.6 V
C
L
= 50 pF, V
DD
= 2 V to 2.7 V
C
L
= 30 pF, V
DD
= 2.7 V to 3.6 V
11
t
f(IO)out
Output high to low
level fall time
C
L
= 50 pF, V
DD
= 2.7 V to 3.6 V
C
L
= 50 pF, V
DD
= 2 V to 2.7 V
C
L
= 30 pF, V
DD
= 2.7 V to 3.6 V
t
r(IO)out
Output low to high
level rise time
Pulse width of
external signals
detected by the EXTI
controller
C
L
= 50 pF, V
DD
= 2.7 V to 3.6 V
C
L
= 50 pF, V
DD
= 2 V to 2.7 V
50
30
20
5
(3)
8
(3)
12
(3)
5
(3)
8
(3)
12
(3)
ns
MHz
MHz
MHz
ns
MHz
ns
Unit
MHz
MODEx[1:0]
Symbol
bit value
(1)
f
max(IO)out
Maximum frequency
(2)
C
L
= 50 pF, V
DD
= 2 V to 3.6 V
10
t
f(IO)out
t
r(IO)out
Output high to low
level fall time
Output low to high
level rise time
f
max(IO)out
Maximum frequency
(2)
C
L
= 50 pF, V
DD
= 2 V to 3.6 V
01
t
f(IO)out
t
r(IO)out
Output high to low
level fall time
Output low to high
level rise time
-
t
EXTIpw
10
ns
1. The I/O speed is configured using the MODEx[1:0] bits. Refer to the STM32F10xxx reference manual for a
description of GPIO Port configuration register.
2. The maximum frequency is defined in
3. Guaranteed by design, not tested in production.
Doc ID 14611 Rev 7
85/123
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