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STM32F446MC Datasheet(PDF) 129 Page - STMicroelectronics

Part # STM32F446MC
Description  ARM® Cortex®-M4 32b MCUFPU, 225DMIPS, up to 512kB Flash/1284KB RAM, USB OTG HS/FS, 17 TIMs, 3 ADCs, 20 comm. interfaces
PDF  202 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32F446MC Datasheet(HTML) 129 Page - STMicroelectronics

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STM32F446xC/E
Electrical characteristics
175
SPI interface characteristics
Unless otherwise specified, the parameters given in Table 63 for SPI are derived from tests
performed under the ambient temperature, fPCLKx frequency and VDD supply voltage
conditions summarized in Table 16, with the following configuration:
•
Output speed is set to OSPEEDRy[1:0] = 10
•
Capacitive load C=30pF
•
Measurement points are done at CMOS levels: 0.5VDD
Refer to Section 6.3.17: I/O port characteristics for more details on the input/output alternate
function characteristics (NSS, SCK, MOSI, MISO for SPI).
Table 63. SPI dynamic characteristics(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fSCK
1/tc(SCK)
SPI clock frequency
Master full duplex/receiver mode,
2.7 V≤VDD≤3.6 V
SPI1/4
--
45
MHz
Master transmitter
1.71V <VDD< 3.6V
SPI1/4
45
Master
1.71V <VDD< 3.6V
SPI1/2/3/4
22.5
Slave transmitter/
full duplex mode
SPI1/4
2.7V <VDD< 3.6V
45
Slave receiver mode
SPI1/4
1.71V <VDD< 3.6V
45
Slave mode
SPI1/2/3/4
1.71V <VDD< 3.6V
22.5(2)
Duty(SCK)
Duty cycle of SPI clock
frequency
Slave mode
30
50
70
%



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