STM32F302xB STM32F302xC
Electrical characteristics
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
fSCK
1/tc(SCK)
SPI clock frequency
DuCy(SCK) Duty cycle of SPI clock frequency
tsu(NSS)
th(NSS)
tw(SCKH)
tw(SCKL)
tsu(MI)
tsu(SI)
th(MI)
th(SI)
ta(SO)
tdis(SO)
NSS setup time
NSS hold time
SCK high and low time
Data input setup time
Data input hold time
Data output access time
Data output disable time
tv(SO) Data output valid time
tv(MO)
th(SO)
th(MO)
Data output hold time
1. Guaranteed by characterization results.
Master mode, SPI1
2.7<VDD<3.6
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
Slave mode
Slave mode, SPI presc = 2
Slave mode, SPI presc = 2
Master mode
Master mode
Slave mode
Master mode
Slave mode
Slave mode
Slave mode
Slave mode
Slave mode, SPI1
2.7<VDD<3.6V
Master mode
Slave mode
Master mode
Min
Typ
Max Unit
24
24
-
-
MHz
18
18
30
50
4*Tpclk -
2*Tpclk
-
70
%
-
-
Tpclk-2 Tpclk Tpclk+2
5.5
-
-
6.5
-
-
5
-
-
5
-
-
ns
0
-
4*Tpclk
0
-
24
-
12
27
-
12
18
-
1.5
3
11
-
-
0
-
-
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