STM32L475VC datasheet(131/193 Pages) STMICROELECTRONICS

131 / 193 page

DocID027692 Rev 2

131/193

STM32L475xx

Electrical characteristics

181

Fmax

Maximum frequency

C=50 pF, 2.7 V≤VDDIOx≤3.6 V

MHz

C=50 pF, 1.62 V≤VDDIOx≤2.7 V

C=50 pF, 1.08 V≤VDDIOx≤1.62 V

C=10 pF, 2.7 V≤VDDIOx≤3.6 V

100(3)

C=10 pF, 1.62 V≤VDDIOx≤2.7 V

37.5

C=10 pF, 1.08 V≤VDDIOx≤1.62 V

Tr/Tf

Output rise and fall time

C=50 pF, 2.7 V≤VDDIOx≤3.6 V

5.8

C=50 pF, 1.62 V≤VDDIOx≤2.7 V

C=50 pF, 1.08 V≤VDDIOx≤1.62 V

C=10 pF, 2.7 V≤VDDIOx≤3.6 V

2.5

C=10 pF, 1.62 V≤VDDIOx≤2.7 V

C=10 pF, 1.08 V≤VDDIOx≤1.62 V

Fmax

Maximum frequency

C=30 pF, 2.7 V≤VDDIOx≤3.6 V

120(3)

MHz

C=30 pF, 1.62 V≤VDDIOx≤2.7 V

C=30 pF, 1.08 V≤VDDIOx≤1.62 V

C=10 pF, 2.7 V≤VDDIOx≤3.6 V

180(3)

C=10 pF, 1.62 V≤VDDIOx≤2.7 V

C=10 pF, 1.08 V≤VDDIOx≤1.62 V

Tr/Tf

Output rise and fall time

C=30 pF, 2.7 V≤VDDIOx≤3.6 V

3.3

C=30 pF, 1.62 V≤VDDIOx≤2.7 V

C=30 pF, 1.08 V≤VDDIOx≤1.62 V

Fm+

Fmax

Maximum frequency

C=50 pF, 1.6 V≤VDDIOx≤3.6 V

-1

MHz

Output fall time(4)

-5

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 RM0395 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.

Table 61. I/O AC characteristics(1)(2) (continued)

Speed Symbol

Parameter

Conditions

Min

Max

Unit

STM32L475VC Datasheet(PDF) 131 Page - STMicroelectronics

STM32L475VC Datasheet(HTML) 131 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL