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STM8L052C6 Datasheet(PDF) 88 Page - STMicroelectronics

Part # STM8L052C6
Description  Value Line, 8-bit ultra-low-power MCU, 32-KB Flash, 256-byte data EEPROM, RTC, LCD, timers, USART, I2C, SPI, ADC
PDF  103 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM8L052C6 Datasheet(HTML) 88 Page - STMicroelectronics

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Electrical parameters
STM8L052C6
88/103
DocID023331 Rev 2
8.3.10
Embedded reference voltage
In the following table, data is based on characterization results, not tested in production,
unless otherwise specified.
Table 43. 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
--
5
10
µs
IBUF
(2)
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
(2)
Internal reference voltage low
power buffer consumption
-
-
730
1200
nA
IREFOUT
(2)
Buffer output current(4)
--
-
1
µA
CREFOUT
Reference voltage output load
-
-
-
50
pF
tVREFINT
Internal reference voltage
startup time
--
2
3
ms
tBUFEN
(2)
Internal reference voltage buffer
startup time once enabled (1)
-
-
10
µs
ACCVREFINT
Accuracy of VREFINT stored in
the VREFINT_Factory_CONV
byte(5)
--
± 5
mV
STABVREFINT
Stability of VREFINT over
temperature
-40 °C
T
A  85 °C
-
20
50
ppm/°C
Stability of VREFINT over
temperature
0 °C
T
A  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.
Data guaranteed by Design. Not tested in production.
3.
Tested in production at VDD = 3 V ±10 mV.
4.
To guaranty 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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