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STM8L151C8 bảng dữ liệu(PDF) 108 Page - STMicroelectronics

tên linh kiện STM8L151C8
Giải thích chi tiết về linh kiện  8-bit ultralow power MCU, up to 64 KB Flash 2 KB data EEPROM, RTC, LCD, timers, USARTs, I2C, SPIs, ADC, DAC, comparators
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STM8L151C8 bảng dữ liệu(HTML) 108 Page - STMicroelectronics

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Electrical parameters
STM8L15xx8, STM8L15xR6
108/134
DocID17943 Rev 6
9.3.10
Embedded reference voltage
In the following table, data are based on characterization results, not tested in production,
unless otherwise specified.
Table 46. Reference voltage characteristics
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
IREFINT
Internal reference voltage
consumption
1.4
µA
TS_VREFINT(1)(2)
ADC sampling time when reading the
internal reference voltage
510
µs
IBUF(1)
Internal reference voltage buffer
consumption (used for ADC)
13.5
25
µA
VREFINT out
Reference voltage output
1.202
(3)
1.224
1.242
(3)
V
ILPBUF(1)
Internal reference voltage low power
buffer consumption (used for
comparators or output)
730
1200
nA
IREFOUT(1)(4)
Buffer output current
1
µA
CREFOUT
Reference voltage output load
50
pF
tVREFINT(1)
Internal reference voltage startup
time
23
ms
tBUFEN(1)(2)
Internal reference voltage buffer
startup time once enabled
10
µs
ACCVREFINT(5)
Accuracy of VREFINT stored in the
VREFINT_Factory_CONV byte
± 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
1000
ppm
1. Guaranteed by design, not tested in production
2. Defined when ADC output reaches its final value ±1/2LSB
3. Tested in production at VDD = 3 V ±10 mV.
4. To guarantee less than 1%
VREFOUT deviation
5. Measured at VDD = 3 V ±10 mV. This value takes into account VDD accuracy and ADC conversion accuracy.



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