STM8L151G4Y3 STMICROELECTRONICS [STMicroelectronics], STM8L151G4Y3 Datasheet - Page 97

• Manufacturer Part Number: STM8L151G4Y3
• Description: 8-bit ultralow power MCU, up to 32 KB Flash, 1 KB Data EEPROM RTC, LCD, timers, USART, I2C, SPI, ADC, DAC, comparators
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STM8L151xx, STM8L152xx
9.3.8
LCD controller (STM8L152xx only)
1. Data guaranteed by Design, not tested in production.
2. LCD enabled with 3 V internal booster (LCD_CR1 = 0x08), 1/4 duty, 1/3 bias, division ratio= 64, all pixels
3. R
4. R
VLCD external capacitor (STM8L152xx only)
The application can achieve a stabilized LCD reference voltage by connecting an external
capacitor C
Table 43.
(= 3 X R
(= 3 X R
Symbol
active, no LCD connected.
R
R
V
V
V
V
V
V
V
V
HN
LN
V
C
HN
LN
V
V
V
V
LCD0
LCD1
LCD2
LCD3
LCD4
LCD5
LCD6
LCD7
I
V
LCD
EXT
DD
33
23
12
13
is the total resistive network value. The bridge is made of 3 R
0
is the total resistive network value. The bridge is made of 3 R
(4)
(3)
H
L
)
)
EXT
LCD characteristics
Segment/Common higher level voltage
Segment/Common lowest level voltage
to the V
Segment/Common 1/3 level voltage
Segment/Common 2/3 level voltage
Segment/Common 1/2 level voltage
LCD internal reference voltage 0
LCD internal reference voltage 1
LCD internal reference voltage 2
LCD internal reference voltage 3
LCD internal reference voltage 4
LCD internal reference voltage 5
LCD internal reference voltage 6
LCD internal reference voltage 7
Supply current
Supply current
High drive resistive network
Low drive resistive network
V
LCD
LCD external voltage
LCD
external capacitance
Parameter
pin. C
Doc ID 15962 Rev 5
(2)
(2)
(1)
EXT
at V
at V
DD
is specified in
DD
= 1.8 V
= 3 V
Table
Min
0.1
L
0
H
serial resistors.
serial resistors.
43.
2/3V
1/2V
1/3V
Typ
360
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
6.6
3
3
LCDx
LCDx
LCDx
Electrical parameters
V
Max.
3.6
LCDx
2
Unit
97/122
MΩ
µF
µA
µA
kΩ
V
V
V
V
V
V
V
V
V
V
V
V
V
V