ST7LIT15BF0 STMicroelectronics, ST7LIT15BF0 Datasheet - Page 114

• Manufacturer Part Number: ST7LIT15BF0
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI
• Manufacturer: STMicroelectronics

Specifications of ST7LIT15BF0

• Up To 4 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection, In-circuit Programming And In-application Programming (icp And Iap). 10k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55˚C.
• 128 Bytes Data Eeprom With Read-out Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55˚C.
• Clock Sources: Internal 1% RC oscillator (on ST7FLITE15B and ST7FLITE19B), crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Auto Wake-up from Halt, Wait and Slow

ST7LITE1xB
13.3.4 Auxiliary Voltage Detector (AVD) Thresholds
T
13.3.5 Internal RC Oscillator and PLL
The ST7 internal clock can be supplied by an internal RC oscillator and PLL (selectable by option byte).
114/159
V
V
V
ΔV
V
V
V
t
A
STARTUP
Symbol
IT+
IT-
hys
DD(RC)
DD(x4PLL)
DD(x8PLL)
Symbol
= -40 to 125°C, unless otherwise specified
IT-
(AVD)
(AVD)
Internal RC Oscillator operating voltage
x4 PLL operating voltage
x8 PLL operating voltage
PLL Startup time
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
DD
DD
rise)
fall)
Parameter
Parameter
Refer to operating range
of V
13.3.1 on page 112
High Threshold
Med. Threshold
Low Threshold
High Threshold
Med. Threshold
Low Threshold
V
V
IT+
DD
DD
(AVD)
fall
Conditions
with T
-V
A,
Conditions
IT-
section
(AVD)
Min
2.7
3.3
2.7
Typ
60
Typ
4.50
4.00
3.35
4.40
3.85
3.20
0.15
170
Max
5.5
3.7
5.5
Unit
mV
cycles
(f
clock
input
V
V
Unit
PLL
PLL
V
)