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STM32L412C8I6TR bảng dữ liệu(PDF) 161 Page - STMicroelectronics

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Giải thích chi tiết về linh kiện  Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 100DMIPS, up to 128KB Flash, 40KB SRAM, analog, ext. SMPS
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STM32L412C8I6TR bảng dữ liệu(HTML) 161 Page - STMicroelectronics

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DS12469 Rev 4
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STM32L412xx
Electrical characteristics
163
Quad SPI characteristics
Unless otherwise specified, the parameters given in Table 91 and Table 92 for Quad SPI
are derived from tests performed under the ambient temperature, fAHB frequency and VDD
supply voltage conditions summarized in Table 21: General operating conditions, with the
following configuration:
•
Output speed is set to OSPEEDRy[1:0] = 11
•
Capacitive load C = 15 or 20 pF
•
Measurement points are done at CMOS levels: 0.5 ₓ VDD
Refer to Section 6.3.14: I/O port characteristics for more details on the input/output alternate
function characteristics.
Table 91. Quad SPI characteristics in SDR mode(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
FCK
1/t(CK)
Quad SPI clock frequency
1.71 < VDD< 3.6 V, CLOAD = 20 pF
Voltage Range 1
--
40
MHz
1.71 < VDD< 3.6 V, CLOAD = 15 pF
Voltage Range 1
--
48
2.7 < VDD< 3.6 V, CLOAD = 15 pF
Voltage Range 1
--
60
1.71 < VDD < 3.6 V CLOAD = 20 pF
Voltage Range 2
--
26
tw(CKH)
Quad SPI clock high and
low time
fAHBCLK= 48 MHz, presc=0
t(CK)/2-2
-
t(CK)/2
ns
tw(CKL)
t(CK)/2
-
t(CK)/2+2
ts(IN)
Data input setup time
Voltage Range 1
2
-
-
Voltage Range 2
3.5
-
-
th(IN)
Data input hold time
Voltage Range 1
5
-
-
Voltage Range 2
6.5
-
-
tv(OUT)
Data output valid time
Voltage Range 1
-
1
5
Voltage Range 2
-
3
5
th(OUT)
Data output hold time
Voltage Range 1
0
-
-
Voltage Range 2
0
-
-
1. Guaranteed by characterization results.



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