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STM32F405IEH6TR bảng dữ liệu(PDF) 99 Page - STMicroelectronics

tên linh kiện STM32F405IEH6TR
Giải thích chi tiết về linh kiện  ARM Cortex-M4 32b MCUFPU, 210DMIPS, up to 1MB Flash/1924KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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STM32F405IEH6TR bảng dữ liệu(HTML) 99 Page - STMicroelectronics

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STM32F405xx, STM32F407xx
Electrical characteristics
Low-speed external user clock generated from an external source
The characteristics given in Table 31 result from tests performed using an low-speed
external clock source, and under ambient temperature and supply voltage conditions
summarized in Table 14.
Figure 30. High-speed external clock source AC timing diagram
Table 31. Low-speed external user clock characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fLSE_ext
User External clock source
frequency(1)
-
-
32.768
1000
kHz
VLSEH
OSC32_IN input pin high level
voltage
0.7VDD
-VDD
V
VLSEL
OSC32_IN input pin low level voltage
VSS
-0.3VDD
tw(LSE)
tf(LSE)
OSC32_IN high or low time(1)
450
-
-
ns
tr(LSE)
tf(LSE)
OSC32_IN rise or fall time(1)
--
50
Cin(LSE)
OSC32_IN input capacitance(1)
--
5
-
pF
DuCy(LSE) Duty cycle
-
30
-
70
%
IL
OSC32_IN Input leakage current
VSS ≤VIN ≤VDD
--
±1
µA
1. Guaranteed by design.



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