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LCD Driver BL55066
The BL 55066 is a general segment driver IC for 96 units LCD panel. It features a wide operating supply voltage range, incorporates simple communication interface with microcomputer and is suitable for multiple application.
Specifications

 

Pin description

Pin NO.

Pin name

Function

6

DI

Serial data input

7

CPW

Data synchronization clock

8

PSC

Parallel synchronization control

9

EOI

External oscillator input

10

Vdd

Plus Power terminal

12

CS

Communication enable control

13-16

T0、T1、T2、T3

Only for test

17

Vss

Minus power terminal

18

Vlcd

LCD power source

19、20、21、23

C0、C2、C1、C3

Common terminal driving output

24-32、34-43、1-5

S0-S23

Segment terminal driving output

11、22、33、44

NC

Unused


Absolute Maximum Rating

Paramter

Symbol

Rating

Unit

Supply voltage

Vdd

-0.5~+7.0

V

LCD operating voltage

Vlcd

Vss-7.0~Vdd

V

Input voltage

Vi

Vss-0.5~Vdd+0.5

V

Output voltage

Vo

Vlcd-0.5~Vdd+0.5

V

Vdd,Vss,Vlcd current

Idd,Iss,Ilcd

-50~+50

mA

Maximum power consumption

Ptot

 

400

mW

Operating temperature

Topr

-40~+75

Storage temperature

Tstg

-65~+150

 

DC Characteristic

Symbol

Parameter

Test Condition

Min

Typ

Max

Unit

Vdd

IC Operating


2.5

-

6

V

Vlcd

LCD operating


Vdd-6

-

Vdd-2.5

V

IDD2


Fclk=200kHz

-

30

90

uA

IDD3


Fclk=35kHz;Vdd=3.5V;Vlcd=0V;

Power saving mode

-

15

40

uA

ViL

Low voltage input

DI,CPW

Vss

-

0.3Vdd

V

ViH

High voltage input

DI,CPW

0.7Vdd

-

6.0

V

Rph

Pull high resister

DI,CPW

15

25

60

 

AC Characteristic

Symbol

Parameter

Test Condition

Min

Typ

Max

Unit

Fclk

Oscillator frequency

Vdd=5V

125

200

315

KHz

Drawings
BL55066
Characteristics

Advanced low power CMOS Technology

Selection of 1/2 or 1/3 bias,selection of 1/2 or 1/3 or 1/4 duty

Low power dissipation 

96 Display Units

On-chip RC oscillator

4 common driver output

operation voltage:2.5-6V

TTL/CMOS compatible

Serial data interface

VLCD for adjusting LCD operating voltage

Power saving mode

Compatible with general microcomputer

Video