ST7LITE49K2 STMicroelectronics, ST7LITE49K2 Datasheet - Page 195

• Manufacturer Part Number: ST7LITE49K2
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST7LITE49K2

• 8 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
• 256 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

ST7LITE49K2
13.3
13.3.1
13.3.2
Operating conditions
General operating conditions
T
Table 72.
Figure 85. f
Operating conditions with low voltage detector (LVD)
T
Table 73.
1. The V
2. Use of LVD with capacitive power supply: with this type of power supply, if power cuts occur in the
A
A
,
NOT GUARANTEED
Symbol
Symbol
V
I
V
DD(LVD)
V
= -40 to 125 °C unless otherwise specified.
IT+
= -40 to +125 °C unless otherwise specified.
f
IT-
When the V
application, it is recommended to pull V
circuit example in
V
V
FUNCTIONALITY
CPU
tPOR
hys
DD
(LVD)
(LVD)
IN THIS AREA
DD
rise time rate condition is needed to ensure a correct device power-on and LVD reset release.
LVD voltage threshold hysteresis
DD
General operating conditions
Operating characteristics with LVD
LVD/AVD current consumption
CPU
f
CPU clock frequency
Reset generation threshold
CPU
slope is outside these values, the LVD may not release properly the reset of the MCU.
Reset release threshold
V
Supply voltage
Figure 122 on page
8
4
2
0
[MHz]
maximum operating frequency versus V
DD
2.0
Parameter
rise time rate
Parameter
(V
(V
DD
2.4
DD
rise)
fall)
2.7
3.3
(1)(2)
225.
DD
down to 0 V to ensure optimum restart conditions. Refer to
3.5
f
f
2.4 V≤ V
CPU
CPU
3.3 V≤ V
V
Med. Threshold
Med. Threshold
High Threshold
High Threshold
Low Threshold
Low Threshold
IT+
Conditions
Conditions
4.0
V
= 4 MHz max.
= 8 MHz max.
(LVD)
DD
DD
= 5 V
DD
-V
< 3.3 V
IT-
≤ 5.5 V
4.5
(LVD)
DD
supply voltage
Min
5.0
3.9
3.2
2.5
3.7
3.0
2.4
Electrical characteristics
2
Min
2.4
3.3
5.5
Typ
150
4.2
3.5
2.7
4.0
3.3
2.6
80
up to 8
up to 4
GUARANTEED
IN THIS AREA
(UNLESS OTHERWISE
STATED IN THE
TABLES OF
PARAMETRIC DATA)
FUNCTIONALITY
SUPPLY VOLTAGE [V]
Max
Max
5.5
5.5
140
4.5
3.8
3.0
4.3
3.6
2.9
195/245
MHz
Unit
Unit
μs/V
mV
μA
V
V