ST7LITE49M STMicroelectronics, ST7LITE49M Datasheet - Page 143

• Manufacturer Part Number: ST7LITE49M
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST7LITE49M

• 4 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection In-circuit Programming And In-application Programming (icp And Iap) Endurance: 10k write/erase cycles guaranteed Data retention
• 128 Bytes Data Eeprom With Read-out Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55 °C.
• Clock Sources: Internal trimmable 8 MHz RC oscillator, auto-wakeup internal low power - low frequency oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-halt, Auto-wakeup from Halt, Wait and Slow
• A/d Converter: 10 input channels

ST7LITE49M
13.3.3
13.3.4
2. Use of LVD with capacitive power supply: with this type of power supply, if power cuts occur in the
Auxiliary voltage detector (AVD) thresholds
T
Table 63.
1. Refer to
2. Not tested in production, guaranteed by characterization.
Voltage drop between AVD flag setting and LVD reset generation
Table 64. Voltage drop
1. Not tested in production, guaranteed by characterization.
V
Symbol
A
V
,
IT+
IT-
V
= -40 to 125 °C unless otherwise specified
AVD high threshold - AVD med. threshold
application, it is recommended to pull V
circuit example in
AVD med threshold - LVD med. threshold
AVD high threshold - LVD med. threshold
AVD med. threshold - AVD low threshold
AVD high threshold - AVD low threshold
AVD med threshold - LVD low threshold
AVD high threshold - LVD low threshold
hys
(AVD)
AVD low threshold - LVD low threshold
(AVD)
Section : Monitoring the VDD main
Operating characteristics with AVD
1=>0 AVDF flag toggle
0=>1 AVDF flag toggle
AVD voltage threshold
threshold (V
threshold (V
Parameter
Figure 96 on page
Parameter
hysteresis
DD
DD
rise)
fall)
Doc ID 13562 Rev 3
169.
DD
down to 0 V to ensure optimum restart conditions. Refer to
supply.
V
Med. threshold
Med. threshold
High threshold
High threshold
Low threshold
Low threshold
IT+
Conditions
(AVD)
Min
1400
1600
800
600
100
950
250
900
(1)
-V
(1)
IT-
(AVD)
Typ
1450
1050
1700
1000
850
650
200
300
(1)
Min
Electrical characteristics
4.0
3.4
2.6
3.9
3.3
2.5
(2)
Max
Typ
1550
1150
1800
1050
950
750
250
400
150
4.4
3.7
2.9
4.3
3.6
2.8
(1)
(2)
Max
4.8
4.1
3.2
4.7
4.0
3.1
(2)
Unit
mV
143/188
Unit
mV
V