Datasheet

DS6329 Rev 16 115/184
STM32F20xxx Electrical characteristics
183
I
2
S - SPI interface characteristics
Unless otherwise specified, the parameters given in Table 54 for SPI or in Table 55 for I
2
S
are derived from tests performed under the ambient temperature, f
PCLKx
frequency and V
DD
supply voltage conditions summarized in
Table 14.
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 and WS, CK, SD for I
2
S).
Table 54. SPI characteristics
Symbol Parameter Conditions Min Max Unit
f
SCK
1/t
c(SCK)
SPI clock frequency
SPI1 master/slave mode - 30
MHz
SPI2/SPI3 master/slave mode - 15
t
r(SCL)
t
f(SCL)
SPI clock rise and fall
time
Capacitive load: C = 30 pF,
f
PCLK
= 30 MHz
- 8ns
DuCy(SCK)
SPI slave input clock
duty cycle
Slave mode 30 70 %
t
su(NSS)
(1)
1. Guaranteed by characterization results, not tested in production.
NSS setup time Slave mode 4t
PCLK
-
ns
t
h(NSS)
(1)
NSS hold time Slave mode 2t
PCLK
-
t
w(SCLH)
(1)
t
w(SCLL)
(1)
SCK high and low time
Master mode, f
PCLK
= 30 MHz,
presc = 2
t
PCLK
-3t
PCLK
+3
t
su(MI)
(1)
t
su(SI)
(1)
Data input setup time
Master mode 5 -
Slave mode 5 -
t
h(MI)
(1)
t
h(SI)
(1)
Data input hold time
Master mode 5 -
Slave mode 4 -
t
a(SO)
(1)(2)
2. Min time is for the minimum time to drive the output and the max time is for the maximum time to validate
the data.
Data output access
time
Slave mode, f
PCLK
= 30 MHz 0 3t
PCLK
t
dis(SO)
(1)(3)
3. Min time is for the minimum time to invalidate the output and the max time is for the maximum time to put
the data in Hi-Z
Data output disable
time
Slave mode 2 10
t
v(SO)
(1)
Data output valid time Slave mode (after enable edge) - 25
t
v(MO)
(1)
Data output valid time Master mode (after enable edge) - 5
t
h(SO)
(1)
Data output hold time
Slave mode (after enable edge) 15 -
t
h(MO)
(1)
Master mode (after enable edge) 2 -
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.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.