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SPC56EL70L3 데이터시트(PDF) 108 Page - STMicroelectronics

부품명 SPC56EL70L3
상세설명  4 KB instruction cache with error detection code
PDF  128 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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SPC56EL70L3 데이터시트(HTML) 108 Page - STMicroelectronics

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Electrical characteristics
SPC56EL70L3, SPC56EL70L5,PC564L70L3, SPC564L70L5
108/128
DocID023953 Rev 5
3.19.5
External watchdog window
If the application design requires the use of an external watchdog the data provided in
Section 3.19: Reset sequence
can be used to determine the correct positioning of the
trigger window for the external watchdog. Figure 20 shows the relationships between the
minimum and the maximum duration of a given reset sequence and the position of an
external watchdog trigger window.
Figure 20. Reset sequence - External watchdog trigger window position
3.20
AC timing characteristics
AC Test Timing Conditions: Unless otherwise noted, all test conditions are as follows:
• TJ = –40oC to 150oC
• Supply voltages as specified in Table 9
• Input conditions: All Inputs: tr, tf = 1 ns
• Output Loading: All Outputs: 50 pF
3.20.1
RESET pin characteristics
The SPC56XL70 implements a dedicated bidirectional RESET pin.
External Watchdog Window Closed
Earliest
Application
Start
Latest
Application
Start
Internal Reset Sequence
Start condition (signal or voltage rail)
External Watchdog Window Open
TReset, min
TReset, max
TWDStart, min
TWDStart, max
External Watchdog Window Closed
External Watchdog Window Open
Basic Application Init
Basic Application Init
Application time required to
prepare watchdog trigger
Watchdog needs to be triggered within this window
Watchdog trigger
Application Running
Application Running



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