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STM32F446RC bảng dữ liệu(PDF) 133 Page - STMicroelectronics

tên linh kiện STM32F446RC
Giải thích chi tiết về linh kiện  ARM® Cortex®-M4 32b MCUFPU, 225DMIPS, up to 512kB Flash/1284KB RAM, USB OTG HS/FS, 17 TIMs, 3 ADCs, 20 comm. interfaces
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STM32F446RC bảng dữ liệu(HTML) 133 Page - STMicroelectronics

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STM32F446xC/E
Electrical characteristics
175
I2S interface characteristics
Unless otherwise specified, the parameters given in Table 66 for the I2S interface are
derived from tests performed under the ambient temperature, fPCLKx frequency and VDD
supply voltage conditions summarized in Table 16, with the following configuration:
•
Output speed is set to OSPEEDRy[1:0] = 10
•
Capacitive load C = 30 pF
•
Measurement points are done at CMOS levels: 0.5VDD
Refer to Section 6.3.17: I/O port characteristics for more details on the input/output alternate
function characteristics (CK, SD, WS).
tw(CKH)
QSPI clock high and low
-
(T(CK) / 2) - 2
-
T(CK) / 2
ns
tw(CKL)
T(CK) / 2
-
(T(CK) / 2) +2
ts(IN)
Data input setup time
-
0
-
-
th(IN)
Data input hold time
-
5.5
-
-
tv(OUT)
Data output valid time
2.7V <VDD< 3.6V
-
5.5
6.5
1.71V <VDD< 3.6V
-
8
9.5
th(OUT)
Data output hold time
-
3.5
-
-
1. Guaranteed based on test during characterization.
Table 65. QSPI dynamic characteristics in DDR Mode(1) (continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Table 66. I2S dynamic characteristics(1)
Symbol
Parameter
Conditions
Min
Max
Unit
fMCK
I2S Main clock output
-
256 x 8K 256 x Fs(2)
MHz
fCK
I2S clock frequency
Master data
-
64 x Fs
MHz
Slave data
-
64 x Fs
DCK
I2S clock frequency duty cycle
Slave receiver
30
70
%



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