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STM32H747AI bảng dữ liệu(PDF) 225 Page - STMicroelectronics

tên linh kiện STM32H747AI
Giải thích chi tiết về linh kiện  Dual 32-bit Arm® Cortex®-M7 up to 480MHz and -M4 MCUs, up to 2MB Flash, 1MB RAM, 46 com. and analog interfaces, SMPS, DSI
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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STM32H747AI bảng dữ liệu(HTML) 225 Page - STMicroelectronics

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DS12930 Rev 1
215/242
STM32H747xI/G
Electrical characteristics
221
CMD, D inputs (referenced to CK) in SD default mode
tISUD
Input setup time SD
-
1.5
-
ns
tIHD
Input hold time SD
-
1.5
-
CMD, D outputs (referenced to CK) in SD default mode
tOVD
Output valid default time SD
-
-
0.5
2
ns
tOHD
Output hold default time SD
-
0
-
-
1. Guaranteed by characterization results.
2. Above 100 MHz, CL = 20 pF.
3. An external voltage converter is required to support SD 1.8 V.
4. The minimum window of time where the data needs to be stable for proper sampling in tuning mode.
Table 123. Dynamics characteristics: SD / MMC characteristics, VDD=2.7 to 3.6 V(1)(2) (continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Table 124. Dynamics characteristics: eMMC characteristics VDD=1.71V to 1.9V(1)(2)
1. Guaranteed by characterization results.
2. CL = 20 pF.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fPP
Clock frequency in data transfer
mode
-0
-
120
MHz
-
SDIO_CK/fPCLK2 frequency ratio
-
-
-
8/3
-
tW(CKL)
Clock low time
fPP =52 MHz
8.5
9.5
-
ns
tW(CKH)
Clock high time
fPP =52 MHz
8.5
9.5
-
CMD, D inputs (referenced to CK) in eMMC mode
tISU
Input setup time HS
-
1
-
-
ns
tIH
Input hold time HS
-
2.5
-
-
tIDW(3)
3. The minimum window of time where the data needs to be stable for proper sampling in tuning mode.
Input valid window (variable
window)
-3.5
-
-
CMD, D outputs (referenced to CK) in eMMC mode
tOVD
Output valid time HS
-
-
5
7
ns
tOHD
Output hold time HS
-
3
-
-



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