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STM32H7B3AI bảng dữ liệu(PDF) 163 Page - STMicroelectronics

tên linh kiện STM32H7B3AI
Giải thích chi tiết về linh kiện  32-bit Arm® Cortex®-M7 280 MHz MCUs, 2-Mbyte flash memory, 1.4-Mbyte RAM, 46 com. and analog interfaces, SMPS, crypto
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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STM32H7B3AI bảng dữ liệu(HTML) 163 Page - STMicroelectronics

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•
Data formats: 14 bits
•
Capacitive load CL=30 pF
•
Measurement points are done at CMOS levels: 0.5VDD
•
Output speed is set to OSPEEDRy[1:0] = 11
•
VOS level set to VOS0
Table 109. DCMI characteristics
Symbol
Parameter
Min(1)
Max(1)
Unit
-
Frequency ratio DCMI_PIXCLK/fHCLK
-
0.4
-
DCMI_PIXCLK
Pixel Clock input
-
80
MHz
Dpixel
Pixel Clock input duty cycle
30
70
%
tsu(DATA)
Data input setup time
2.5
-
-
th(DATA)
Data hold time
1
-
tsu(HSYNC),
tsu(VSYNC)
DCMI_HSYNC/ DCMI_VSYNC input setup time
3
-
ns
th(HSYNC),
th(VSYNC)
DCMI_HSYNC/ DCMI_VSYNC input hold time
1
-
-
1. Guaranteed by design.
Figure 61. DCMI timing diagram
DCMI_PIXCLK
tsu(VSYNC)
tsu(HSYNC)
DCMI_HSYNC
DCMI_VSYNC
DATA[0:13]
1/DCMI_PIXCLK
th(HSYNC)
th(HSYNC)
tsu(DATA) th(DATA)
6.3.32
PSSI interface characteristics
Unless otherwise specified, the parameters given in Table 110 and 111for PSSI are derived from tests performed
under the ambient temperature, fHCLK frequency and VDD supply voltage summarized in Table 22. General
operating conditions and Section 6.3.1 , with the following configuration:
•
PSSI_PDCK polarity: falling
•
PSSI_RDY and PSSI_DE polarity: low
•
Bus width : 16 lines
•
DATA width : 32 bits
•
Capacitive load C=30 pF
•
Measurement points are done at CMOS levels: 0.5VDD
•
Output speed is set to OSPEEDRy[1:0] = 11
STM32H7B3xI
Operating conditions
DS13139 - Rev 8
page 163/238



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