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STM32F479AI Scheda tecnica(PDF) 184 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) 184 Page - STMicroelectronics

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Electrical characteristics
STM32F479xx
184/217
DocID028010 Rev 3
5.3.30
Quad-SPI interface characteristics
Unless otherwise specified, the parameters given in Table 106 and Table 107 for Quad-SPI
are derived from tests performed under the ambient temperature, fAHB frequency and VDD
supply voltage conditions summarized in Table xx, with the following configuration:
•
Output speed is set to OSPEEDRy[1:0] = 11
•
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.
Figure 73. Quad-SPI SDR timing diagram
Table 106. Quad-SPI characteristics in SDR mode(1)
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
Fck
1/t(CK)
Quad-SPI clock frequency
2.7 V ≤ VDD ≤ 3.6 V, CL = 20 pF
-
-
90
MHz
1.71 V ≤ VDD ≤ 3.6 V, CL = 15 pF
--
84
tw(CKH)
Quad-SPI clock high time
‐
t(CK)/2-1
-
t(CK)/2
ns
tw(CKL)
Quad-SPI clock low time
‐
t(CK)/2
-
t(CK)/2+1
ts(IN)
Data input set-up time
‐
0.5
-
-
th(IN)
Data input hold time
‐
3-
-
tv(OUT)
Data output valid time
‐
-3
4
th(OUT)
Data output hold time
‐
2.5
-
-
1. Guaranteed based on test during characterization.



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