ST7FMC2S4TCE STMicroelectronics, ST7FMC2S4TCE Datasheet - Page 33
![IC MCU 8BIT 16K FLASH 44-LQFP](/photos/6/84/68458/497-44-tqfp_44-lqfp_sml.jpg)
ST7FMC2S4TCE
Manufacturer Part Number
ST7FMC2S4TCE
Description
IC MCU 8BIT 16K FLASH 44-LQFP
Manufacturer
STMicroelectronics
Series
ST7r
Datasheet
1.ST7FMC2S4T6.pdf
(309 pages)
Specifications of ST7FMC2S4TCE
Core Processor
ST7
Core Size
8-Bit
Speed
8MHz
Connectivity
LINSCI, SPI
Peripherals
LVD, Motor Control PWM, POR, PWM, WDT
Number Of I /o
26
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
3.8 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
44-LQFP
For Use With
497-8402 - BOARD EVAL COMPLETE INVERTER497-8400 - KIT IGBT PWR MODULE CTRL ST7MC497-6408 - BOARD EVAL BLDC SENSORLESS MOTOR497-4734 - EVAL KIT 3KW POWER DRIVER BOARD497-4733 - EVAL KIT 1KW POWER DRIVER BOARD497-4732 - EVAL KIT 300W POWER DRIVER BOARD497-4731 - EVAL KIT PWR DRIVER CONTROL BRD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST7FMC2S4TCE
Manufacturer:
STMicroelectronics
Quantity:
10 000
- Current page: 33 of 309
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SYSTEM INTEGRITY MANAGEMENT (Cont’d)
6.3.2 Auxiliary Voltage Detector (AVD)
The Voltage Detector function (AVD) is based on
an analog comparison between a V
V
ply. The V
lower than the V
age in order to avoid parasitic detection (hystere-
sis).
The output of the AVD comparator is directly read-
able by the application software through a real-
time status bit (AVDF) in the SICSR register. This
bit is read only.
Caution: The AVD function is active only if the
LVD is enabled through the option byte (see
tion 14.1 on page
6.3.2.1 Monitoring the V
If the AVD interrupt is enabled, an interrupt is gen-
erated when the voltage crosses the V
V
Figure 18. Using the AVD to Monitor V
IT+(AVD)
IT-(AVD)
AVDF bit
AVD INTERRUPT
REQUEST
IF AVDIE bit = 1
LVD RESET
V
V
V
V
IT+(AVD)
IT+(LVD)
IT-(LVD)
IT-(AVD)
threshold (AVDF bit toggles).
reference value and the V
IT-
reference value for falling voltage is
V
DD
IT+
290).
reference value for rising volt-
0
DD
Main Supply
DD
INTERRUPT PROCESS
IT-(AVD)
IT+(AVD)
main sup-
V
Early Warning Interrupt
(Power has dropped, MCU not
not yet in reset)
DD
hyst
sec-
and
or
1
In the case of a drop in voltage, the AVD interrupt
acts as an early warning, allowing software to shut
down safely before the LVD resets the microcon-
troller. See
The interrupt on the rising edge is used to inform
the application that the V
If the voltage rise time t
CPU cycles (depending on the reset delay select-
ed by option byte), no AVD interrupt will be gener-
ated when V
If t
– If the AVD interrupt is enabled before the
– If the AVD interrupt is enabled after the V
V
rupts will be received: the first when the AVDIE
bit is set, and the second when the threshold is
reached.
threshold is reached then only one AVD interrupt
will occur.
rv
IT+(AVD)
is greater than 256 or 4096 cycles then:
threshold is reached, then 2 AVD inter-
Figure
IT+(AVD)
t
18.
rv
VOLTAGE RISE TIME
is reached.
ST7MC1xx/ST7MC2xx
rv
DD
is less than 256 or 4096
warning state is over.
INTERRUPT PROCESS
0
IT+(AVD)
33/309
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