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STM32F401CB Scheda tecnica(PDF) 112 Page - STMicroelectronics

Il numero della parte STM32F401CB
Spiegazioni elettronici  ARM Cortex-M4 32b MCUFPU, 105 DMIPS, 256KB Flash/64KB RAM, 11 TIMs, 1 ADC, 11 comm. interfaces
PDF  135 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32F401CB Scheda tecnica(HTML) 112 Page - STMicroelectronics

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STM32F401xB STM32F401xC
Electrical characteristics
113
Refer to Section 6.3.16: I/O port characteristics for more details on the input/output
characteristics.
Figure 44. SDIO high-speed mode
Figure 45. SD default mode
tW(CKH)
CK
D, CMD
(output)
D, CMD
(input)
tC
tW(CKL)
tOV
tOH
tISU
tIH
tf
tr
ai14887
CK
D, CMD
(output)
tOVD
tOHD
ai14888
Table 77. Dynamic characteristics: SD / MMC characteristics(1)(2)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fPP
Clock frequency in data transfer mode
0
-
48
MHz
-
SDIO_CK/fPCLK2 frequency ratio
-
-
8/3
-
tW(CKL)
Clock low time
fpp = 48MHz
8.5
9
-
ns
tW(CKH)
Clock high time
fpp = 48MHz
8.3
10
-
CMD, D inputs (referenced to CK) in MMC and SD HS mode
tISU
Input setup time HS
fpp = 48MHz
3.5
-
-
ns
tIH
Input hold time HS
fpp = 48MHz
0
-
-
CMD, D outputs (referenced to CK) in MMC and SD HS mode
tOV
Output valid time HS
fpp = 48MHz
-
4.5
7
ns
tOH
Output hold time HS
fpp = 48MHz
3
-
-



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