Table 52. I/O Ac Characteristics - STMicroelectronics STM32F042G4 Manual

STM32F042xx
Input/output AC characteristics
The definition and values of input/output AC characteristics are given in
Table 52, respectively.
Unless otherwise specified, the parameters given are derived from tests performed under
the ambient temperature and supply voltage conditions summarized in
operating
OSPEEDRy
Symbol
(1)
[1:0] value
f
max(IO)out
t
f(IO)out
t
r(IO)out
x0
f
max(IO)out
t
f(IO)out
t
r(IO)out
f
max(IO)out
t
f(IO)out
t
r(IO)out
01
f
max(IO)out
t
f(IO)out
t
r(IO)out
f
max(IO)out
11 t
f(IO)out
t
r(IO)out
conditions.

Table 52. I/O AC characteristics

Parameter
(3)
Maximum frequency
Output fall time
Output rise time
(3)
Maximum frequency
Output fall time
Output rise time
(3)
Maximum frequency
Output fall time
Output rise time
(3)
Maximum frequency
Output fall time
Output rise time
(3)
Maximum frequency
Output fall time
Output rise time
DocID025832 Rev 2
(1)(2)
Conditions

C = 50 pF, V 2 V
L DDIOx

C = 50 pF, V 2 V
L DDIOx

C = 50 pF, V 2 V
L DDIOx

C = 50 pF, V 2 V
L DDIOx

C = 30 pF, V 2.7 V
L DDIOx

C = 50 pF, V 2.7 V
L DDIOx

C = 50 pF, 2 V V
L DDIOx

C = 50 pF, V 2 V
L DDIOx

C = 30 pF, V 2.7 V
L DDIOx

C = 50 pF, V 2.7 V
L DDIOx

C = 50 pF, 2 V V
L DDIOx

C = 50 pF, V 2 V
L DDIOx

C = 30 pF, V 2.7 V
L DDIOx

C = 50 pF, V 2.7 V
L DDIOx

C = 50 pF, 2 V V
L DDIOx

C = 50 pF, V 2 V
L DDIOx
Electrical characteristics
Figure 24
Table 21: General
Min Max
- 2
- 125
- 125
- 1
- 125
- 125
- 10
- 25
- 25
- 4
- 62.5
- 62.5
- 50
- 30

2.7 V - 20
- 10
- 5
- 8

2.7 V - 12
- 25
- 5
- 8

2.7 V - 12
- 25
and
Unit
MHz
ns
MHz
ns
MHz
ns
MHz
ns
MHz
ns
81/117
94