Datasheet

DocID029968 Rev 3 177/210
STM32L452xx Electrical characteristics
186
Figure 31. SPI timing diagram - slave mode and CPHA = 0
t
v(SO)
Data output valid time
Slave mode 2.7 < V
DD
< 3.6 V
Voltage Range 1
- 12.5 13.5
ns
Slave mode 1.71 < V
DD
< 3.6 V
Voltage Range 1
-12.524
Slave mode 1.71 < V
DD
< 3.6 V
Voltage Range 2
-12.533
t
v(MO)
Master mode - 4.5 6
t
h(SO)
Data output hold time
Slave mode 7 - -
ns
t
h(MO)
Master mode 0 - -
1. Guaranteed by characterization results.
2. Maximum frequency in Slave transmitter mode is determined by the sum of t
v(SO)
and t
su(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 t
su(MI)
= 0 while Duty(SCK) = 50 %.
Table 94. SPI characteristics
(1)
(continued)
Symbol Parameter Conditions Min Typ Max Unit
06Y9
166LQSXW
&3+$ 
&32/ 
6&.LQSXW
&3+$ 
&32/ 
0,62RXWSXW
026,LQSXW
W
VX6,
W
K6,
W
Z6&./
W
Z6&.+
W
F6&.
W
U6&.
W
K166
W
GLV62
W
VX166
W
D62
W
Y62
1H[WELWV,1
/DVWELW287
)LUVWELW,1
)LUVWELW287 1H[WELWV287
W
K62
W
I6&.
/DVWELW,1
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