st72324bk STMicroelectronics, st72324bk Datasheet - Page 28

• Manufacturer Part Number: st72324bk
• Description: 3 V/5 V Range 8-bit Mcu With 4/8 Kbyte Rom, 10-bit Adc, Four Timers And Spi
• Manufacturer: STMicroelectronics

Supply, reset and clock management
5.2.3
5.2.4
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External power-on reset (POR)
To start up the microcontroller correctly, the user must ensure by means of an external reset
circuit that the reset signal is held low until V
selected f
A proper reset signal for a slow rising V
RC network connected to the RESET pin.
Internal watchdog reset
Starting from the Watchdog counter underflow, the device RESET pin acts as an output that
is pulled low during at least t
Figure 12. Reset block diagram
RESET
OSC
frequency.
V
DD
R
w(RSTL)out
ON
.
Filter
DD
supply can generally be provided by an external
DD
is over the minimum level specified for the
GENERATOR
PULSE
WATCHDOG RESET
ST72323 ST72323L
INTERNAL
RESET