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STM32H747AI 데이터시트(PDF) 229 Page - STMicroelectronics

부품명 STM32H747AI
상세설명  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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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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STM32H747AI 데이터시트(HTML) 229 Page - STMicroelectronics

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DS12930 Rev 1
219/242
STM32H747xI/G
Electrical characteristics
221
Figure 68. Ethernet RMII timing diagram
Table 127. Dynamics characteristics: Ethernet MAC signals for RMII (1)
1. Guaranteed by characterization results.
Symbol
Parameter
Min
Typ
Max
Unit
tsu(RXD)
Receive data setup time
2
-
-
ns
tih(RXD)
Receive data hold time
2
-
-
tsu(CRS)
Carrier sense setup time
1.5
-
-
tih(CRS)
Carrier sense hold time
1.5
-
-
td(TXEN)
Transmit enable valid delay time
7
8
9.5
td(TXD)
Transmit data valid delay time
8
9
11
Table 128. Dynamics characteristics: Ethernet MAC signals for MII (1)
1. Guaranteed by characterization results.
Symbol
Parameter
Min
Typ
Max
Unit
tsu(RXD)
Receive data setup time
2
-
-
ns
tih(RXD)
Receive data hold time
2
-
-
tsu(DV)
Data valid setup time
1.5
-
-
tih(DV)
Data valid hold time
1.5
-
-
tsu(ER)
Error setup time
1.5
-
-
tih(ER)
Error hold time
0.5
-
-
td(TXEN)
Transmit enable valid delay time
9
10
11
td(TXD)
Transmit data valid delay time
8.5
9.5
12.5
ai15667b
RMII_REF_CLK
RMII_TX_EN
RMII_TXD[1:0]
RMII_RXD[1:0]
RMII_CRS_DV
td(TXEN)
td(TXD)
tsu(RXD)
tsu(CRS)
tih(RXD)
tih(CRS)



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