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SPC572L64F2 bảng dữ liệu(PDF) 37 Page - STMicroelectronics

tên linh kiện SPC572L64F2
Giải thích chi tiết về linh kiện  32-bit Power Architecture® based MCU for automotive powertrain applications
PDF  112 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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SPC572L64F2 bảng dữ liệu(HTML) 37 Page - STMicroelectronics

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SPC572Lx
Electrical characteristics
111
Figure 8. Start-up reset requirements
Figure 9 describes device behavior depending on supply signal on PORST:
1.
PORST low pulse amplitude is too low—it is filtered by input buffer hysteresis. Device
remains in current state.
2.
PORST low pulse duration is too short—it is filtered by a low pass filter. Device remains
in current state.
3.
PORST low pulse generates a reset:
a)
PORST low but initially filtered during at least WFRST. Device remains initially in
current state.
b)
PORST potentially filtered until WNFRST. Device state is unknown: it may either be
reset or remains in current state depending on other factors (temperature, voltage,
device).
c)
PORST asserted for longer than WNFRST. Device is under reset.
VIL
VDD
VDDMIN
PORST
VIH
device start-up phase
VDD_POR
PORST undriven.
Device reset by
internal power-on
reset.
PORST driven low by
internal power-on reset.
Device reset forced by
external circuitry.



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