Table 49. Spi Characteristics - STMicroelectronics STM32L151CB Manual

Electrical characteristics
SPI characteristics
Unless otherwise specified, the parameters given in the following table are derived from
tests performed under ambient temperature, f
conditions summarized in
Refer to
input/output alternate function characteristics (NSS, SCK, MOSI, MISO).
Symbol
f
SCK
1/t
c(SCK)
t
r(SCK)
t
f(SCK)
DuCy(SCK)
t
su(NSS)
t
h(NSS)
t
w(SCKH)
t
w(SCKL)
t
su(MI)
(2)
t
su(SI)
(2)
t
h(MI)
(2)
t
h(SI)
(4)
t
a(SO)
(2)
t
v(SO)
(2)
t
v(MO)
(2)
t
h(SO)
(2)
t
h(MO)
1. The characteristics above are given for voltage Range 1.
2. Based on characterization, not tested in production.
3. The maximum SPI clock frequency in slave transmitter mode is given for an SPI slave input clock duty
cycle (DuCy(SCK)) ranging between 40 to 60%.
4. Min time is for the minimum time to drive the output and max time is for the maximum time to validate the
data.
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Table
Section 6.3.12: I/O current injection characteristics

Table 49. SPI characteristics

Parameter
SPI clock frequency
(2)
SPI clock rise and fall
(2)
time
SPI slave input clock duty
cycle
NSS setup time
NSS hold time
(2)
SCK high and low time
(2)
(2)
Data input setup time
Data input hold time
Data output access time
Data output valid time
Data output valid time
Data output hold time
PCLKx
13.
Conditions
Master mode
Slave mode
Slave transmitter
Capacitive load: C = 30 pF
Slave mode
Slave mode
Slave mode
Master mode
Master mode
Slave mode
Master mode
Slave mode
Slave mode
Slave mode
Master mode
Slave mode
Master mode
DocID17659 Rev 10
STM32L151x6/8/B, STM32L152x6/8/B
frequency and V supply voltage
DD
for more details on the
(1)
Min
-
-
-
-
30
4t
HCLK
2t
HCLK
t
SCK
5
5
6
5
5
0
-
-
17
0.5
(2)
Max Unit
16
16
MHz
(3)
12
6 ns
70 %
-
-
/2− t /2+
SCK
3
-
-
-
ns
-
3t
HCLK
33
6.5
-
-