BL55087 Datasheet, PDF (1/11 Pages) SHANGHAI BELLING CO., LTD. – LCD Driver for 160 Display Units

BL55087
Shanghai Belling Corp., Ltd
zip: 200233 Tel: [phone] Fax: [phone]
LCD Driver for 160 Display Units BL55087
The BL55087 is a general COG LCD driver IC for 160 units LCD panel. It features a wide
operating supply voltage range, incorporates simple communication interface with
microcomputer and is suitable for multiple application.
1．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
● I²C data interface
● 160(40x4) Display Units
● Low power dissipation design: Power saving mode: Idd=14uA at 5V and
Idd=9uA at 3.3V; Sleeping mode: Idd<2uA
● Maybe cascaded up to 2PCs for large LCD applications
● On-chip RC oscillator
● VLCD for adjusting LCD operating voltage
● Excellent EMC immunity
● Compatible with general microcomputer
● Package: COG
2．Pin Description
Pin No.
1~4
5~44
45,46
47,48
49,50
51
52
53~57
58
59
60~64
65~69
70
71
72
73
Pin name
BP0~BP3
S0~S39
NC
SDA
SCL
SYNC
CLK
Vdd
OSC
A0
Vss
Vlcd
CLK
SYNC
SCL
SDA
Function
BP terminal driving output
Segment terminal driving output
Serial data input/output
Serial clock input
Cascade synchronization clock
External clock input
（OSC=0:output；OSC=1:input）
Supply voltage
internal oscillator enable input
Subaddress inputs
ground
LCD supply voltage
External clock input
（OSC=0:output；OSC=1:input）
Cascade synchronization clock
Serial clock input
Serial data input/output
BL55087 Version 1.0
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