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STM32H747AI bảng dữ liệu(PDF) 216 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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Electrical characteristics
STM32H747xI/G
206/242
DS12930 Rev 1
SPI interface characteristics
Unless otherwise specified, the parameters given in Table 119 for SPI are derived from tests
performed under the ambient temperature, fPCLKx frequency and VDD supply voltage
conditions summarized in Table 22: General operating conditions, with the following
configuration:
•
Output speed is set to OSPEEDRy[1:0] = 11
•
Capacitive load CL = 30 pF
•
Measurement points are done at CMOS levels: 0.5VDD
•
IO Compensation cell activated.
•
HSLV activated when VDD ≤ 2.7 V
•
VOS level set to VOS1
Refer to Section 6.3.18: I/O port characteristics for more details on the input/output alternate
function characteristics (NSS, SCK, MOSI, MISO for SPI).
Table 119. SPI characteristics(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fSCK
SPI clock frequency
Master mode
1.62<VDD<3.6 V
SPI1, 2, 3
--
80
MHz
Master mode
2.7<VDD<3.6 V
SPI1, 2, 3
100
Master mode
1.62<VDD<3.6 V
SPI4, 5, 6
50
Slave receiver mode
1.62<VDD<3.6 V
100
Slave mode transmitter/full duplex
2.7<VDD<3.6 V
31
Slave mode transmitter/full duplex
1.62 <VDD<3.6 V
29
tsu(NSS)
NSS setup time
Slave mode
2
-
-
-
th(NSS)
NSS hold time
Slave mode
1
-
-
tw(SCKH),
tw(SCKL)
SCK high and low time
Master mode
TPCLK-2 TPCLK TPCLK+2



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