ST72324BJ6 STMicroelectronics, ST72324BJ6 Datasheet - Page 66

• Manufacturer Part Number: ST72324BJ6
• Description: 5V RANGE 8-BIT MCU WITH 8 TO 32K FLASH/ROM, 10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE
• Manufacturer: STMicroelectronics

Specifications of ST72324BJ6

• Hdflash Endurance: 1 kcycle at 55 °C, data retention 40 years at 85 °C
• Clock Sources: crystal/ceramic resonator oscillators, int. RC osc. and ext. clock input
• 4 Power Saving Modes: Slow, Wait, Active-halt, and Halt

On-chip peripherals
10.1.4
Caution:
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Figure 32. Watchdog block diagram
How to program the Watchdog timeout
Figure 33
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 33. 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)
50
Figure
WDGA
Reset
34.
65
T6
T5
Watchdog Control register (WDGCR)
OSC2
82
6-bit downcounter (CNT)
T4
WDG prescaler
div 4
T3
98
T2
T1
114
ST72324Bxx
T0
128