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PDF BL55070 Data sheet ( Hoja de datos )
| Número de pieza | BL55070 | |
| Descripción | LCD Driver | |
| Fabricantes | BELLING | |
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BL55070
Shanghai Belling Corp., Ltd
zip: 200233 Tel: 86-021-64850700 Fax: 86-021-64855865
LCD Driver for 140 Display Units BL55070
1 General Description
The BL55070 is a general LCD driver IC for 140 units LCD panel. It features a wide
operating supply voltage range, incorporates simple communication interface with
microcomputer and is suitable for multiple application.
2 Features
Advanced low power CMOS Technology
Selection of 1/2 or 1/3 bias, selection of 1/2 or 1/3 or 1/4 duty.
Operation voltage: 2.5~5.5V
Serial data interface
140(35x4) Display Units
Low power dissipation design: Power saving mode: Idd=14uA at 5V and Idd=9uA at
3.3V; Sleeping mode: Idd<2uA
On-chip RC oscillator
VLCD for adjusting LCD operating voltage
Excellent EMC immunity
Compatible with general microcomputer
LQFP44 package
3 Pin Assignment
Fig 1
1
1 page  
BL55070
Shanghai Belling Corp., Ltd
zip: 200233 Tel: 86-021-64850700 Fax: 86-021-64855865
Fig 5
6 Absolute Maximum Rating
Parameter
Symbol
Supply voltage
Vdd
LCD operating voltage
Vlcd
Input voltage
Vi
Output voltage
Vo
Vdd,Vss,Vlcd current
Idd,Iss,Ilcd
Maximum power consumption
Ptot
Operating temperature
Topr
Storage temperature
Tstg
Rating
-0.5～+6.0
0～ Vdd
Vss-0.5～Vdd+0.5
Vlcd-0.5～Vdd+0.5
-50～+50
400
-40～ +75
-65～ +150
Unit
V
V
V
V
mA
mW
oC
oC
7 DC Characteristic
Symbol Parameter
Test Condition
Vdd
Vlcd
Idd1
Idd2
Idd3
Idd4
ISL
ViL
IC Operating
voltage
LCD operating
voltage
Supply current
Supply current
Supply current
Supply current
Sleep current
Vdd=5V,VLCD=0V,Normal
mode,internal oscillator
Vdd=5V,VLCD=0V,power saving
mode,internal oscillator
Vdd=3.3V,VLCD=0V,Normal
mode,internal oscillator
Vdd=3.3V,VLCD=0V,power saving
mode,internal oscillator
Vdd=5V,VLCD=0V
Low voltage input SDA,SCL
ViH High voltage
input
SDA,SCL
Min
2.5
0
-
-
-
-
-
Vss
0.7Vdd
Typ
-
-
25
14
16
9
1.5
-
-
Max
5.5
Unit
V
Vdd-2
V
50 uA
30 uA
30 uA
15 uA
2
0.3Vdd
6.0
uA
V
V
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet BL55070.PDF ] | |
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