STM32MP157C datasheet(235/260 Pages) STMICROELECTRONICS

235 / 260 page

DS12505 Rev 5

235/260

STM32MP157C/F

Electrical characteristics

238

6.3.37

USART interface characteristics

Unless otherwise specified, the parameters given in Table 112 for USART are derived from

tests performed under the ambient temperature, fHCLK frequency and VDD supply voltage

conditions summarized in Table 112, with the following configuration:

•

Output speed is set to OSPEEDRy[1:0] = 10

•

Capacitive load C = 30 pF

•

Measurement points are done at CMOS levels: 0.5×VDD

Refer to Section 6.3.17: I/O port characteristics for more details on the input/output alternate

function characteristics (NSS, CK, TX, RX for USART).

6.3.38

USB High-Speed PHY characteristics

Table 112. USART characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fCK

USART clock frequency

Master mode

USART2,3,6

12.5

MHz

Master mode

USART1

16.5

Slave mode

tsu(NSS)

NSS setup time

Slave mode

tker+2

th(NSS)

NSS hold time

Slave mode

tw(CKH),

tw(CKL)

CK high and low time

Master mode

1/fCK/2 - 1

1/fck/2

1/fCK/2 + 1

tsu(RX)

Data input setup time

Master mode

tker+3

Slave mode

thRX)

Data input hold time

Master mode

Slave mode

tv(TX)

Data output valid time

Slave mode

Master mode

0.5

th(TX)

Data output hold time

Slave mode

Master mode

1. 1.Guaranteed by characterization results.

Table 113. USB High-Speed PHY characteristics(1)

Symbol

Parameter

Conditions

Min

Typ Max Unit

RREF

Reference resistor on USB_RREF pin

2.97 3.00 3.03

kΩ

STM32MP157C 数据表(PDF) 235 Page - STMicroelectronics

STM32MP157C 数据表(HTML) 235 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

数据表下载

链接网址

STM32MP157C 数据表(PDF) 235 Page - STMicroelectronics

STM32MP157C 数据表(HTML) 235 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

数据表 下载

链接网址

数据表下载