STM32H7 datasheet(192/357 Pages) STMICROELECTRONICS

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Electrical characteristics (rev Y)

STM32H742xI/G STM32H743xI/G

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DS12110 Rev 10

SPI interface characteristics

Unless otherwise specified, the parameters given in Table 106 for the SPI interface are

derived from tests performed under the ambient temperature, fPCLKx frequency and VDD

supply voltage conditions summarized in Table 24: General operating conditions, with the

following configuration:

•

Output speed is set to OSPEEDRy[1:0] = 11

•

Capacitive load C = 30 pF

•

Measurement points are done at CMOS levels: 0.5VDD

•

I/O compensation cell enabled

•

HSLV activated when VDD ≤ 2.7 V

Refer to Section 6.3.15: I/O port characteristics for more details on the input/output alternate

function characteristics (NSS, SCK, MOSI, MISO for SPI).

Table 106. SPI dynamic characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fSCK

1/tc(SCK)

SPI clock frequency

Master mode

1.62 V≤VDD≤3.6 V

MHz

Master mode

2.7 V≤VDD≤3.6 V

SPI1,2,3

133

Master mode

2.7 V≤VDD≤3.6 V

SPI4,5,6

100

Slave receiver mode

1.62 V≤VDD≤3.6 V

SPI1,2,3

150

Slave receiver mode

1.62 V≤VDD≤3.6 V

SPI4,5,6

100

Slave mode transmitter/full

duplex

2.7 V≤VDD≤3.6 V

Slave mode transmitter/full

duplex

1.62 V≤VDD≤3.6 V

tsu(NSS)

NSS setup time

Slave mode

th(NSS)

NSS hold time

tw(SCKH),

tw(SCKL)

SCK high and low time

Master mode

TPLCK - 2

TPLCK

TPLCK + 2

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