Datasheet

DocID025147 Rev 7 95/138
STM32F302x6 STM32F302x8 Electrical characteristics
117
SPI/I
2
S characteristics
Unless otherwise specified, the parameters given in Table 61 for SPI or in Table 62 for I
2
S
are derived from tests performed under ambient temperature, f
PCLKx
frequency and V
DD
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 I
2
S).
Table 61. SPI characteristics
(1)
1. Guaranteed by characterization results.
Symbol Parameter Conditions Min Typ Max Unit
f
SCK
1/t
c(SCK)
SPI clock frequency
Master mode - - 18
MHz
Slave mode - - 18
t
su(NSS)
NSS setup time Slave mode, SPI presc = 2
4*Tpcl
k
--
ns
t
h(NSS)
NSS hold time Slave mode, SPI presc = 2
2*Tpcl
k
--
t
w(SCKH)
t
w(SCKL)
SCK high and low
time
Master mode, f
PCLK
= 36
MHz, presc = 4
Tpclk-
2
Tpclk
Tpclk+
2
t
su(MI)
t
su(SI)
Data input setup time
Master mode 0 - -
Slave mode 1 - -
t
h(MI)
Data input hold time
Master mode 6.5 - -
t
h(SI)
Slave mode 2.5 - -
t
a(SO)
Data output access
time
Slave mode 8 - 40
t
dis(SO)
Data output disable
time
Slave mode 8 - 14
t
v(SO)
Data output valid time
Slave mode - 12 27
t
v(MO)
Master mode - 1.5 4
t
h(SO)
Data output hold time
Slave mode
7.5 - -
t
h(MO)
Master mode 0 - -
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