ST72361AR9-Auto STMicroelectronics, ST72361AR9-Auto Datasheet - Page 66

• Manufacturer Part Number: ST72361AR9-Auto
• Description: 8-bit MCU for automotive with K Flash, 10-bit ADC, 5 Timers, SPI, 2x LINSCI
• Manufacturer: STMicroelectronics

Specifications of ST72361AR9-Auto

• Hdflash Endurance: 100 cycles, data retention 20 years at 55 °C
• 5 Power Saving Modes: halt, auto wake up from halt, active halt, wait and slow

Power saving modes
Note:
Note:
7.6
66/279
1
2
3
4
As soon as active halt is enabled, executing a HALT instruction while the Watchdog is active
does not generate a RESET.
This means that the device cannot spend more than a defined delay in this power saving
mode.
Figure 27. ACTIVE HALT timing overview
Figure 28. ACTIVE HALT mode flow-chart
This delay occurs only if the MCU exits ACTIVE HALT mode by means of a RESET.
Peripheral clocked with an external clock source can still be active.
Only the RTC interrupt and some specific interrupts can exit the MCU from ACTIVE HALT
mode (such as external interrupt). Refer to
Before servicing an interrupt, the CC register is pushed on the stack. The I[1:0] bits in the
CC register are set to the current software priority level of the interrupt routine and restored
when the CC register is popped.
Auto wake-up from halt mode
Auto Wake-Up From Halt (AWUFH) mode is similar to Halt mode with the addition of an
internal RC oscillator for wake-up. Compared to ACTIVE HALT mode, AWUFH has lower
power consumption because the main clock is not kept running, but there is no accurate
realtime clock available.
(Active Halt enabled)
INSTRUCTION
(AWUCSR.AWUEN=0)
HALT INSTRUCTION
RUN
N
(MCCSR.OIE=1)
Doc ID 12468 Rev 3
HALT
ACTIVE
INTERRUPT
HALT
Y
DELAY (AFTER RESET)
256 OR 4096 CYCLE
INTERRUPT
3)
Table 16
RESET
256 OR 4096 CPU CLOCK
OR SERVICE INTERRUPT
FETCH RESET VECTOR
OR
OSCILLATOR
PERIPHERALS
CPU
I[1:0] BITS
OSCILLATOR
PERIPHERALS
CPU
I[1:0] BITS
OSCILLATOR
PERIPHERALS
CPU
I[1:0] BITS
N
CYCLE DELAY
RESET
Y
for more details.
VECTOR
FETCH
2)
XX
XX
OFF
OFF
OFF
RUN
ON
ON
ON
ON
ON
ON
10
4)
4)
ST72361xx-Auto