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STM8AL3138 Datasheet(PDF) 94 Page - STMicroelectronics

No. de pieza STM8AL3138
Descripción Electrónicos  Automotive 8-bit ultra-low-power MCU, up to 32 Kbyte Flash, RTC, data EEPROM, LCD, timers, USART, I2C, SPI, ADC, DAC, COMPs
PDF  124 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM8AL3138 Datasheet(HTML) 94 Page - STMicroelectronics

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Electrical parameters
STM8AL313x/4x/6x STM8AL3L4x/6x
94/124
DocID18474 Rev 7
9.3.9
LCD controller (STM8AL3Lxx only)
In the following table, data are guaranteed by design and are not tested in production.
VLCD external capacitor (STM8AL3Lxx only)
The application can achieve a stabilized LCD reference voltage by connecting an external
capacitor CEXT to the VLCD pin. CEXT is specified in Table 48.
Table 48. LCD characteristics
Symbol
Parameter
Min
Typ
Max.
Unit
VLCD
LCD external voltage
-
-
3.6
V
VLCD0
LCD internal reference voltage 0
-
2.6
-
VLCD1
LCD internal reference voltage 1
-
2.7
-
VLCD2
LCD internal reference voltage 2
-
2.8
-
VLCD3
LCD internal reference voltage 3
-
2.9
-
VLCD4
LCD internal reference voltage 4
-
3.0
-
VLCD5
LCD internal reference voltage 5
-
3.1
-
VLCD6
LCD internal reference voltage 6
-
3.2
-
VLCD7
LCD internal reference voltage 7
-
3.3
-
CEXT
VLCD external capacitance
0.1
-
2
µF
IDD
Supply current(1) at VDD = 1.8 V
1. LCD enabled with 3 V internal booster (LCD_CR1 = 0x08), 1/4 duty, 1/3 bias, division ratio= 64, all pixels
active, no LCD connected.
-3
-
µA
Supply current(1) at VDD = 3 V
-
3
-
RHN (2)
2. RHN is the total high value resistive network.
High value resistive network (low drive)
-
6.6
-
M
Ω
RLN (3)
3. RLN is the total low value resistive network.
Low value resistive network (high drive)
-
360
-
k
Ω
V33
Segment/Common higher level voltage
-
-
VLCDx
V
V23
Segment/Common 2/3 level voltage
-
2/3VLCDx
-
V12
Segment/Common 1/2 level voltage
-
1/2VLCDx
-
V13
Segment/Common 1/3 level voltage
-
1/3VLCDx
-
V0
Segment/Common lowest level voltage
0
-
-



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