ST72324BK4-Auto STMicroelectronics, ST72324BK4-Auto Datasheet - Page 66
ST72324BK4-Auto
Manufacturer Part Number
ST72324BK4-Auto
Description
8-bit MCU for automotive, 3.8 to 5.5V operating range with 16 Kbyte Flash, 10-bit ADC, 4 timers, SPI, SCI
Manufacturer
STMicroelectronics
Datasheet
1.ST72324BJ2-AUTO.pdf
(198 pages)
Specifications of ST72324BK4-Auto
Hdflash Endurance
100 cycles, data retention 20 years
Clock Sources
crystal/ceramic resonator oscillators, internal RC oscillator and external clock input
4 Power Saving Modes
Slow, Wait, Active Halt, and Halt
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On-chip peripherals
10.1.4
Caution:
66/198
Figure 30. Watchdog block diagram
How to program the Watchdog timeout
Figure 31
Watchdog Counter (CNT) and the resulting timeout duration in milliseconds. This can be
used for a quick calculation without taking the timing variations into account. If more
precision is needed, use the formulae in
When writing to the WDGCR register, always write 1 in the T6 bit to avoid generating an
immediate reset.
Figure 31. Approximate timeout duration
3F
MCC/RTC
38
30
28
20
18
10
08
00
shows the linear relationship between the 6-bit value to be loaded in the
1.5
11
MSB
RTC counter
12-bit MCC
f
Div 64
OSC2
18
6
5
LSB
0
34
Watchdog timeout (ms) @ 8 MHz. f
TB[1:0] bits
(MCCSR
register)
Doc ID13466 Rev 4
50
Figure
WDGA
Reset
32.
65
T6
T5
Watchdog Control register (WDGCR)
OSC2
82
6-bit downcounter (CNT)
T4
WDG prescaler
div 4
T3
98
T2
T1
ST72324B-Auto
114
T0
128
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