ST7FLITE29 STMICROELECTRONICS [STMicroelectronics], ST7FLITE29 Datasheet - Page 94

• Manufacturer Part Number: ST7FLITE29
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST7LITE2
13.3.2 Operating Conditions with Low Voltage Detector (LVD)
T
Note:
1. Not tested in production.
2. Not tested in production. The V
When the V
13.3.3 Auxiliary Voltage Detector (AVD) Thresholds
T
Note:
1. Not tested in production.
13.3.4 Internal RC Oscillator and PLL
The ST7 internal clock can be supplied by an internal RC oscillator and PLL (selectable by option byte).
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1
V
V
V
Vt
t
I
V
V
V
V
V
V
t
A
A
g(VDD)
DD(LVD
STARTUP
Symbol
Symbol
Symbol
V
IT+
IT-
hys
IT+
IT-
hys
DD(RC)
DD(x4PLL)
DD(x8PLL)
POR
= -40 to 125°C, unless otherwise specified
= -40 to 125°C, unless otherwise specified
IT-
(LVD)
(AVD)
(LVD)
(AVD)
)
DD
Reset release threshold
(V
Reset generation threshold
(V
LVD voltage threshold hysteresis
V
Filtered glitch delay on V
LVD/AVD current consumption
1=>0 AVDF flag toggle threshold
(V
0=>1 AVDF flag toggle threshold
(V
AVD voltage threshold hysteresis
Voltage drop between AVD flag set
and LVD reset activation
Internal RC Oscillator operating voltage
x4 PLL operating voltage
x8 PLL operating voltage
PLL Startup time
DD
slope is outside these values, the LVD may not ensure a proper reset of the MCU.
DD
DD
DD
DD
rise time rate
rise)
fall)
rise)
fall)
Parameter
Parameter
Parameter
2)
DD
rise time rate condition is needed to insure a correct device power-on and LVD reset.
DD
High Threshold
Med. Threshold
Low Threshold
High Threshold
Med. Threshold
Low Threshold
V
Not detected by the LVD
High Threshold
Med. Threshold
Low Threshold
High Threshold
Med. Threshold
Low Threshold
V
V
IT+
IT+
DD
(LVD)
(AVD)
fall
Conditions
Conditions
-V
-V
IT-
IT-
Conditions
(LVD)
(AVD)
3.40
2.65
4.00
4.40
3.90
3.20
3.80
3.20
2.40
4.30
3.70
2.90
Min
Min
20
Min
2.4
2.4
3.3
1)
1)
1)
1)
1)
1)
Typ
Typ
4.25
3.60
2.90
4.05
3.40
2.70
4.70
4.10
3.40
4.60
3.90
3.20
0.45
200
245
150
Typ
60
4.30
3.65
20000
2.90
4.90
4.10
3.40
Max
Max
4.50
3.80
3.15
5.00
4.30
3.60
150
Max
5.5
3.3
5.5
1)
1)
1)
1)
1)
1)
cycles
Unit
Unit
(f
clock
input
mV
mV
Unit
PLL
µA
ns
s/V
V
V
V
PLL
V
)