ST72F344K4T6 STMicroelectronics, ST72F344K4T6 Datasheet - Page 50

• Manufacturer Part Number: ST72F344K4T6
• Description: MCU 8BIT 16KB FLASH MEM 32-LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F344K4T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Processor Series: ST72F3x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: I2C, SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST72F34X-SK/RAIS, ST7MDT40-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• For Use With: 497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5611

Supply, reset and clock management
7.6.3
7.6.4
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In the case of a drop in voltage below V
is issued.
If V
hardware. No interrupt is generated, and therefore software should poll the AVDF bit to
detect when the voltage has risen, and resume normal processing.
Figure 19. Using the AVD to monitor V
Low-power modes
Table 10.
Interrupts
The AVD interrupt event generates an interrupt if the corresponding AVDIE Bit is set and the
interrupt mask in the CC register is reset (RIM instruction).
Table 11.
Wait
Halt
AVD event
DD
AVD INTERRUPT
REQUEST
IF AVDIE bit = 1
rises above the V
Mode
AVDF bit
V
V
LVD RESET
Interrupt event
IT+(AVD)
IT-(AVD)
V
IT-(LVD)
Low-power mode description
Interrupt event
No effect on SI. AVD interrupts cause the device to exit from Wait mode.
The SICSR register is frozen.
V
DD
IT+(AVD)
0
Doc ID 12321 Rev 5
threshold voltage the AVDF bit is cleared automatically by
Event flag
IT-(AVD)
AVDF
1
INTERRUPT PROCESS
DD
Early warning interrupt
(Power has dropped, MCU not
not yet in reset)
, the AVDF flag is set and an interrupt request
Description
Control bit
Enable
AVDIE
0
Exit from
1
ST72344xx ST72345xx
Wait
Yes
RESET VALUE
V
hys
Exit from
Halt
No