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STM32L4P5CEU6PTR bảng dữ liệu(HTML) 235 Page - STMicroelectronics

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DS12903 Rev 2
235/311
STM32L4P5xx
Electrical characteristics
277
6.3.25
DFSDM characteristics
Unless otherwise specified, the parameters given in Table 91 for DFSDM are derived from
tests performed under the ambient temperature, fAPB2 frequency and VDD supply voltage
conditions summarized in Table 21: General operating conditions.
•
Output speed is set to OSPEEDRy[1:0] = 10
•
Capacitive load C = 30 pF
•
Measurement points are done at CMOS levels: 0.5 x VDD
Refer to Section 6.3.14: I/O port characteristics for more details on the input/output alternate
function characteristics (DFSDM1_CKINy, DFSDM1_DATINy, DFSDM1_CKOUT for
DFSDM).
Table 91. DFSDM characteristics(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fDFSDMCLK
DFSDM clock
1.71 < VDD < 3.6 V
-
-
fSYSCLK
MHz
fCKIN
(1/TCKIN)
Input clock
frequency
SPI mode (SITP[1:0]=0,1),
External clock mode
(SPICKSEL[1:0]=0),
1.71 < VDD < 3.6 V
--
20
SPI mode (SITP[1:0]=0,1),
External clock mode
(SPICKSEL[1:0]=0),
2.7 < VDD < 3.6 V
--
20
SPI mode (SITP[1:0]=0,1),
Internal clock mode
(SPICKSEL[1:0]
≠0),
1.71 < VDD < 3.6 V
--
20
SPI mode (SITP[1:0]=0,1),
Internal clock mode
(SPICKSEL[1:0]
≠0),
2.7 < VDD < 3.6 V
--
20
fCKOUT
Output clock
frequency
1.71 < VDD < 3.6 V
-
-
20
DuCyCKOUT
Output clock
frequency duty
cycle
1.71 < VDD < 3.6 V
45
50
55
%



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