Datasheet

Electrical characteristics STM32F401xD STM32F401xE
100/135
SPI interface characteristics
Unless otherwise specified, the parameters given in Table 61 for the SPI interface are
derived from tests performed under the ambient temperature, f
PCLKx
frequency and V
DD
supply voltage conditions summarized in Table 14, with the following configuration:
• Output speed is set to OSPEEDRy[1:0] = 10
• Capacitive load C = 30 pF
• Measurement points are done at CMOS levels: 0.5V
DD
Refer to Section 6.3.16: I/O port characteristics for more details on the input/output alternate
function characteristics (NSS, SCK, MOSI, MISO for SPI).
Table 61. SPI dynamic characteristics
(1)
Symbol Parameter Conditions Min Typ Max Unit
f
SCK
1/t
c(SCK)
SPI clock frequency
Master mode, SPI1/4,
2.7 V < V
DD
< 3.6 V
--
42
MHz
Slave mode, SPI1/4,
2.7 V < V
DD
< 3.6 V
42
Slave transmitter/full-duplex mode,
SPI1/4, 2.7 V < V
DD
< 3.6 V
38
(2)
Master mode, SPI1/2/3/4,
1.7 V < V
DD
< 3.6 V
21
Slave mode, SPI1/2/3/4,
1.7 V < V
DD
< 3.6 V
21
Duty(SCK)
Duty cycle of SPI clock
frequency
Slave mode 30 50 70 %
t
w(SCKH)
t
w(SCKL)
SCK high and low time Master mode, SPI presc = 2 T
PCLK
−1.5
T
PCLK
T
PCLK
+1.5 ns
t
su(NSS)
NSS setup time Slave mode, SPI presc = 2 4T
PCLK
--ns
t
h(NSS)
NSS hold time Slave mode, SPI presc = 2 2T
PCLK
--ns
t
su(MI)
Data input setup time
Master mode 0 - - ns
t
su(SI)
Slave mode 2.5 - - ns
t
h(MI)
Data input hold time
Master mode 6 - - ns
t
h(SI)
Slave mode 2.5 - - ns
t
a(SO
) Data output access time Slave mode 9 - 20 ns
t
dis(SO)
Data output disable time Slave mode 8 - 13 ns
t
v(SO)
Data output valid time
Slave mode (after enable edge),
2.7 V < V
DD
< 3.6 V
-9.513ns
Slave mode (after enable edge),
1.7 V < V
DD
< 3.6 V
-9.517ns
t
h(SO)
Data output hold time
Slave mode (after enable edge),
2.7 V < V
DD
< 3.6 V
5.5 - - ns
Slave mode (after enable edge),
1.7 V < V
DD
< 3.6 V
3.5 - - ns
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.