STM32F303VC datasheet(96/148 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F303xB STM32F303xC

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DocID023353 Rev 13

SPI/I2S characteristics

Unless otherwise specified, the parameters given in Table 63 for SPI or in Table 64 for I2S

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

supply voltage conditions summarized in Table 24.

Refer to Section 6.3.14: I/O port characteristics for more details on the input/output alternate

function characteristics (NSS, SCK, MOSI, MISO for SPI and WS, CK, SD for I2S).

Table 63. SPI characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fSCK

1/tc(SCK)

SPI clock frequency

Master mode, SPI1

2.7<VDD<3.6

MHz

Slave mode, SPI1

2.7<VDD<3.6

Master mode, SPI1/2/3

2<VDD<3.6

Slave mode, SPI1/2/3

2<VDD<3.6

DuCy(SCK) Duty cycle of SPI clock frequency

Slave mode

tsu(NSS)

NSS setup time

Slave mode, SPI presc = 2

4*Tpclk

th(NSS)

NSS hold time

Slave mode, SPI presc = 2

2*Tpclk

tw(SCKH)

tw(SCKL)

SCK high and low time

Master mode

Tpclk-2

Tpclk

Tpclk+2

tsu(MI)

Data input setup time

Master mode

5.5

tsu(SI)

Slave mode

6.5

th(MI)

Data input hold time

Master mode

th(SI)

Slave mode

ta(SO)

Data output access time

Slave mode

4*Tpclk

tdis(SO)

Data output disable time

Slave mode

tv(SO)

Data output valid time

Slave mode

Slave mode, SPI1

2.7<VDD<3.6V

-12

tv(MO)

Master mode

1.5

th(SO)

Data output hold time

Slave mode

th(MO)

Master mode

1. Guaranteed by characterization results.

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