STM32F358XC datasheet(93/134 Pages) STMICROELECTRONICS

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STM32F358xC

Electrical characteristics

118

SPI/I2S characteristics

Unless otherwise specified, the parameters given in Table 62 for SPI or in Table 63 for I2S

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

supply voltage conditions summarized in Table 24.

Refer to Section 6.3.13: 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 62. SPI characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fSCK

1/tc(SCK)

SPI clock frequency

Master mode,SPI1/2/3

MHz

Slave mode,SPI1/2/3

Slave mode transmitter/full

duplex SPI1/2/3

12.5(2)

Duty(SCK)

SPI slave input clock

duty cycle

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, fPCLK = 36 MHz,

presc = 4

Tpclk-2

Tpclk

Tpclk+2

tsu(MI)

tsu(SI)

Data input setup time

Master mode

5.5

Slave mode

6.5

th(MI)

Data input hold time

Master mode

th(SI)

Slave mode

ta(SO)

Data output access time Slave mode, fPCLK = 24 MHz

4*Tpclk

tdis(SO)

Data output disable time Slave mode

tv(SO)

Data output valid time

Slave mode (after enable edge)

tv(MO)

Data output valid time

Master mode (after enable edge)

1.5

th(SO)

Data output hold time

Slave mode (after enable edge)

th(MO)

Master mode (after enable edge)

1. Data based on characterization results, not tested in production.

2. Maximum frequency in Slave transmitter mode is determined by the sum of tv(SO) and tsu(MI) which has to fit into SCK

low or high phase preceding the SCK sampling edge. This value can be achieved when the SPI communicates with a

master having tsu(MI) = 0 while Duty(SCK) = 50%.

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