STM32L432KB Datasheet, PDF (106/149 Pages) STMicroelectronics – Batch acquisition mode

Electrical characteristics
STM32L432KB STM3L432KC
Table 58. I/O AC characteristics⁽¹⁾⁽²⁾ (continued)
Speed Symbol
Parameter
Conditions
Min Max Unit
Fmax Maximum frequency
10
Tr/Tf Output rise and fall time
Fmax Maximum frequency
11
Tr/Tf Output rise and fall time
Fm+
Fmax Maximum frequency
Tf Output fall time⁽⁴⁾
C=50 pF, 2.7 V≤V_DDIOx≤3.6 V
C=50 pF, 1.62 V≤V_DDIOx≤2.7 V
C=50 pF, 1.08 V≤V_DDIOx≤1.62 V
C=10 pF, 2.7 V≤V_DDIOx≤3.6 V
C=10 pF, 1.62 V≤V_DDIOx≤2.7 V
C=10 pF, 1.08 V≤V_DDIOx≤1.62 V
C=50 pF, 2.7 V≤V_DDIOx≤3.6 V
C=50 pF, 1.62 V≤V_DDIOx≤2.7 V
C=50 pF, 1.08 V≤V_DDIOx≤1.62 V
C=10 pF, 2.7 V≤V_DDIOx≤3.6 V
C=10 pF, 1.62 V≤V_DDIOx≤2.7 V
C=10 pF, 1.08 V≤V_DDIOx≤1.62 V
C=30 pF, 2.7 V≤V_DDIOx≤3.6 V
C=30 pF, 1.62 V≤V_DDIOx≤2.7 V
C=30 pF, 1.08 V≤V_DDIOx≤1.62 V
C=10 pF, 2.7 V≤V_DDIOx≤3.6 V
C=10 pF, 1.62 V≤V_DDIOx≤2.7 V
C=10 pF, 1.08 V≤V_DDIOx≤1.62 V
C=30 pF, 2.7 V≤V_DDIOx≤3.6 V
C=30 pF, 1.62 V≤V_DDIOx≤2.7 V
C=30 pF, 1.08 V≤V_DDIOx≤1.62 V
C=50 pF, 1.6 V≤V_DDIOx≤3.6 V
-
50
-
25
-
5
-
100^{(3) MHz}
-
37.5
-
5
-
5.8
-
11
-
28
ns
-
2.5
-
5
-
12
-
120⁽³⁾
-
50
-
10
-
180^{(3) MHz}
-
75
-
10
-
3.3
-
6
ns
-
16
-
1
MHz
-
5
ns
1. The I/O speed is configured using the OSPEEDRy[1:0] bits. The Fm+ mode is configured in the SYSCFG_CFGR1 register.
Refer to the RM0393 reference manual for a description of GPIO Port configuration register.
2. Guaranteed by design.
3. This value represents the I/O capability but the maximum system frequency is limited to 80 MHz.
4. The fall time is defined between 70% and 30% of the output waveform accordingly to I²C specification.
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