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STM32F479AI Scheda tecnica(PDF) 141 Page - STMicroelectronics

Il numero della parte STM32F479AI
Spiegazioni elettronici  ARMCortex-M4 32b MCUFPU, 225DMIPS, up to 2MB Flash/3844KB RAM, USB OTG HS/FS, Ethernet, FMC, dual Quad-SPI, Crypto, Graphical accelerator, Camera IF, LCD-TFT & MIPI DSI
PDF  217 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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STM32F479AI Scheda tecnica(HTML) 141 Page - STMicroelectronics

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STM32F479xx
Electrical characteristics
190
SPI interface characteristics
Unless otherwise specified, the parameters given in Table 64 for the SPI interface are
derived from tests performed under the ambient temperature, fPCLKx frequency and VDD
supply voltage conditions summarized in Table 17, 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 5.3.20 for more details on the input/output alternate function characteristics
(NSS, SCK, MOSI, MISO for SPI).
1. Guaranteed based on test during characterization.
2. Spikes with widths below tAF(min) are filtered.
3. Spikes with widths above tAF(max) are not filtered
Table 64. SPI dynamic characteristics(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fSCK
1/tc(SCK)
SPI clock frequency
Master mode, 2.7 V≤VDD≤3.6 V,
SPI1,4,5,6,
--
45
MHz
Master mode, 1.71 V≤VDD≤3.6 V,
SPI1,4,5,6
-
-
22.5(2)
Master transmitter mode,
1.7 V≤VDD≤3.6 V, SPI1,4,5,6
--
45
Slave full duplex mode,
2.7 V≤VDD≤3.6 V, SPI1,4,5,6
-
-
22.5
Slave transmitter mode,
1.71 V≤VDD≤3.6 V, SPI1,4,5,6
--
33
Slave transmitter mode,
2.7 V≤VDD≤3.6 V, SPI1,4,5,6
--
45
Slave mode, 1.71 V≤VDD≤3.6 V,
SPI2,3
-
-
22.5
Duty(SCK)
Duty cycle of SPI clock
frequency
Slave mode
30
50
70
%



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