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STM32F405 Datasheet(PDF) 122 Page - STMicroelectronics

No. de pieza STM32F405
Descripción Electrónicos  Arm® Cortex®-M4 32b MCUFPU, 210DMIPS, up to 1MB Flash/1924KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera
PDF  204 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32F405 Datasheet(HTML) 122 Page - STMicroelectronics

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Electrical characteristics
STM32F405xx, STM32F407xx
122/203
DS8626 Rev 9
SPI interface characteristics
Unless otherwise specified, the parameters given in Table 55 for SPI are derived from tests
performed under the ambient temperature, fPCLKx frequency and VDD 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: 0.5 VDD
Refer to Section 5.3.16: I/O port characteristics for more details on the input/output alternate
function characteristics (NSS, SCK, MOSI, MISO).
Table 55. SPI dynamic characteristics(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fSCK
SPI clock frequency
Master mode, SPI1,
2.7V < VDD < 3.6V
--
42
MHz
Slave mode, SPI1,
2.7V < VDD < 3.6V
42
1/tc(SCK)
Master mode, SPI1/2/3,
1.7V < VDD < 3.6V
--
21
Slave mode, SPI1/2/3,
1.7V < VDD < 3.6V
21
Duty(SCK)
Duty cycle of SPI clock
frequency
Slave mode
30
50
70
%



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