ST7FOXK1 STMicroelectronics, ST7FOXK1 Datasheet - Page 43

• Manufacturer Part Number: ST7FOXK1
• Description: Low cost flash 8bit micro
• Manufacturer: STMicroelectronics

Specifications of ST7FOXK1

• 4 To 8 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection In-circuit Programming And In-application Programming (icp And Iap) Endurance: 1K write/erase cycles guaranteed Data retention
• Clock Sources: Internal trimmable 8 MHz RC oscillator, auto wakeup internal low power - low frequency oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Auto Wakeup from Halt, Wait and Slow
• A/d Converter: up to 10 input channels

ST7FOXF1, ST7FOXK1, ST7FOXK2
6.3.5
Internal watchdog reset
The Reset sequence generated by an internal watchdog counter overflow is shown in
Figure 15: Reset sequences
Starting from the watchdog counter underflow, the device RESET pin acts as an output that
is pulled low during at least t
Figure 15. Reset sequences
WATCHDOG
RESET
EXTERNAL
RESET
SOURCE
RESET PIN
V
V
IT+(LVD)
IT-(LVD)
V
DD
RUN
ACTIVE PHASE
RESET
w(RSTL)out
LVD
.
t
RUN
h(RSTL)in
WATCHDOG UNDERFLOW
ACTIVE
PHASE
EXTERNAL
RESET
Supply, reset and clock management
INTERNAL RESET (256 or 4096 T
VECTOR FETCH
RUN
WATCHDOG
ACTIVE
PHASE
RESET
t
w(RSTL)out
RUN
CPU
)
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