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STM8L151C4U6 bảng dữ liệu(PDF) 98 Page - STMicroelectronics

tên linh kiện STM8L151C4U6
Giải thích chi tiết về linh kiện  8-bit ultralow power MCU, up to 32 KB Flash, 1 KB Data EEPROM RTC, LCD, timers, USART, I2C, SPI, ADC, DAC, comparators
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STM8L151C4U6 bảng dữ liệu(HTML) 98 Page - STMicroelectronics

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Electrical parameters
STM8L151xx, STM8L152xx
98/122
Doc ID 15962 Rev 5
9.3.9
Embedded reference voltage
Based on characterization results, unless otherwise specified.
Table 44.
Reference voltage characteristics
Symbol
Parameter
Conditions
Min
Typ
Max.
Unit
IREFINT
Internal reference voltage
consumption
1.4
µA
TS_VREFINT
ADC sampling time when reading
the internal reference voltage(1)
510
µs
IBUF
Internal reference voltage buffer
consumption (used for ADC)
13.5
25
µA
VREFINT out
Reference voltage output
1.202 1.224 1.242
V
VREFINT_DIV1
1/4 reference voltage
25
%VREFINT_COMP
VREFNT_DIV2
1/2 reference voltage
50
VREFNT_DIV3
3/4 reference voltage
75
ILPBUF
Internal reference voltage low power
buffer consumption (used for
comparators or output)
730
1200
nA
IREFOUT
Buffer output current(2)
1µA
CREFOUT
Reference voltage output load
50
pF
tVREFINT
Internal reference voltage startup
time
23
ms
tBUFEN
Internal reference voltage buffer
startup time once enabled (1)
10
µs
ACCVREFINT
Accuracy of VREFINT stored in the
VREFINT_Factory_CONV byte(3)
± 5
mV
STABVREFINT
Stability of VREFINT over temperature -40 °C ≤TA ≤ 125 °C
20
50
ppm/°C
Stability of VREFINT over temperature
0 °C
≤TA ≤ 50 °C
20
ppm/°C
STABVREFINT Stability of VREFINT after 1000 hours
TBD
ppm
1.
Defined when ADC output reaches its final value ±1/2LSB
2.
To guaranty less than 1%
VREFOUT deviation
3.
Measured at VDD = 3 V ±10 mV. This value takes into account VDD accuracy and ADC conversion accuracy.



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