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STM32H747AI 数据表(PDF) 214 Page - STMicroelectronics

部件名 STM32H747AI
功能描述  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
PDF  252 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STM32H747AI 数据表(HTML) 214 Page - STMicroelectronics

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Electrical characteristics
STM32H747xI/G
204/242
DS12930 Rev 1
Refer to Section 6.3.18: I/O port characteristics for more details on the input/output alternate
function characteristics (NSS, CK, TX, RX for USART).
Table 118. USART characteristics(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fCK
USART clock frequency
Master mode
--
12.5
MHz
Slave mode
25
tsu(NSS)
NSS setup time
Slave mode
tker+1
-
-
-
th(NSS)
NSS hold time
Slave mode
2
-
-
tw(SCKH),
tw(SCKL)
CK high and low time
Master mode
1/fCK/2-2
1/fCK/2
1/fCK/2+2
tsu(RX)
Data input setup time
Master mode
tker+6
-
-
ns
Slave mode
1.5
-
-
th(RX)
Data input hold time
Master mode
0
-
-
Slave mode
1.5
-
-
tv(TX)
Data output valid time
Slave mode
-
12
20
Master mode
-
0.5
1
th(TX)
Data output hold time
Slave mode
9
-
-
Master mode
0
-
-
1. Guaranteed by characterization results.



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