STM32F302X8 datasheet(95/139 Pages) STMICROELECTRONICS

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DS9896 Rev 8

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STM32F302x6 STM32F302x8

Electrical characteristics

117

SPI/I2S characteristics

Unless otherwise specified, the parameters given in Table 61 for SPI or in Table 62 for I2S

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

supply voltage conditions summarized in Table 23.

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 61. SPI characteristics(1)

1. Guaranteed by characterization results.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fSCK

1/tc(SCK)

SPI clock frequency

Master mode

MHz

Slave mode

tsu(NSS)

NSS setup time

Slave mode, SPI presc = 2

4*Tpcl

th(NSS)

NSS hold time

Slave mode, SPI presc = 2

2*Tpcl

tw(SCKH)

tw(SCKL)

SCK high and low

time

Master mode, fPCLK = 36

MHz, presc = 4

Tpclk-

Tpclk

Tpclk+

tsu(MI)

tsu(SI)

Data input setup time

Master mode

Slave mode

th(MI)

Data input hold time

Master mode

6.5

th(SI)

Slave mode

2.5

ta(SO)

Data output access

time

Slave mode

tdis(SO)

Data output disable

time

Slave mode

tv(SO)

Data output valid time

Slave mode

tv(MO)

Master mode

1.5

th(SO)

Data output hold time

Slave mode

7.5

th(MO)

Master mode

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