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ST72334J Datasheet(PDF) 29 Page - STMicroelectronics

Part # ST72334J
Description  8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
PDF  125 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72334J Datasheet(HTML) 29 Page - STMicroelectronics

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ST72334J/N, ST72314J/N, ST72124J
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RESET SEQUENCE MANAGER (Cont’d)
Internal Watchdog RESET
The RESET sequence generated by a internal
Watchdog counter overflow is shown in Figure 18.
Starting from the Watchdog counter underflow, the
device RESET pin acts as an output that is pulled
low during at least tDELAYmin.
Figure 18. Watchdog RESET Sequence
RESET
RUN
DELAY
INTERNAL RESET
4096 CLOCK CYCLES
FETCH
VECTOR
RUN
RESET PIN
EXTERNAL RESET SOURCE
VDD
VLVDf
VDDnominal
WATCHDOG RESET
WATCHDOG UNDERFLOW
tDELAYmin



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