Datasheet

Electrical characteristics STM32L476xx
174/270 DS10198 Rev 8
10
Fmax Maximum frequency
C=50 pF, 2.7 VV
DDIOx
3.6 V - 50
MHz
C=50 pF, 1.62 VV
DDIOx
2.7 V - 25
C=50 pF, 1.08 VV
DDIOx
1.62 V - 5
C=10 pF, 2.7 VV
DDIOx
3.6 V - 100
(3)
C=10 pF, 1.62 VV
DDIOx
2.7 V - 37.5
C=10 pF, 1.08 VV
DDIOx
1.62 V - 5
Tr/Tf Output rise and fall time
C=50 pF, 2.7 VV
DDIOx
3.6 V - 5.8
ns
C=50 pF, 1.62 VV
DDIOx
2.7 V - 11
C=50 pF, 1.08 VV
DDIOx
1.62 V - 28
C=10 pF, 2.7 VV
DDIOx
3.6 V - 2.5
C=10 pF, 1.62 VV
DDIOx
2.7 V - 5
C=10 pF, 1.08 VV
DDIOx
1.62 V - 12
11
Fmax Maximum frequency
C=30 pF, 2.7 VV
DDIOx
3.6 V - 120
(3)
MHz
C=30 pF, 1.62 VV
DDIOx
2.7 V - 50
C=30 pF, 1.08 VV
DDIOx
1.62 V - 10
C=10 pF, 2.7 VV
DDIOx
3.6 V - 180
(3)
C=10 pF, 1.62 VV
DDIOx
2.7 V - 75
C=10 pF, 1.08 VV
DDIOx
1.62 V - 10
Tr/Tf Output rise and fall time
C=30 pF, 2.7 VV
DDIOx
3.6 V - 3.3
nsC=30 pF, 1.62 VV
DDIOx
2.7 V - 6
C=30 pF, 1.08 VV
DDIOx
1.62 V - 16
Fm+
Fmax Maximum frequency
C=50 pF, 1.6 VV
DDIOx
3.6 V
-1MHz
Tf Output fall time
(4)
-5ns
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 RM0351 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 I
2
C specification.
Table 72. I/O AC characteristics
(1)(2)
(continued)
Speed Symbol Parameter Conditions Min Max Unit
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