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Pin Name

Description

Pin No.

I / O

Vcc

Positive Power supply

1

 

Vss

Negative Power supply

2

 

TXD

Data output pin

3

O

D0

Key-press input pin,contain pull-down resistor

4

I

D1

Key-press input pin,contain pull-down resistor

5

I

D2

Key-press input pin,contain pull-down resistor

6

I

D3

Key-press input pin,contain pull-down resistor

7

I

OSC

Oscillator circuitry input pin,connect resistor to power supply

8

I

 

Limit Parameter:

Sign

Parameter

Condition

Scope

Unit

Vcc

Supply voltage

 

-0.3~15

V

VI

Input voltage

 

-0.3Vcc+ 0.3

V

VO

Output voltage

 

-0.3Vcc+ 0.3

V

Tst

Storage temperature

 

-40 125

oC

Top

Operating temperature

 

-20 70

oC

Pdis

Most power consumption

Vcc = 12VEmpty

24

mW

 

Electric Characteristic:

Parameter

Condition

Sign

Least

Type

Most

Unit

Operating voltage

 

Vcc

2.4

12

15

V

Quiescent current

Vcc = 12V,OSC stop ,OutPut Unloaded

Isb

 

 

1.0

uA

Operating current

Vcc = 12V ,one key-press inputone contact Vcc

Iop

 

0.5

1.0

mA

Driven pull current

Vcc = 12V,Voh = 6V

Ioh

5

 

 

mA

Driven sink current

Vcc = 12V,Vol = 6V

Iol

3

 

 

mA

Operating frequency

 

Fop

 

80K

 

Hz

 

hangzhou zhenxin micro electronic co.,ltd

Company Homepage

Products (5)

Selling leads (4)

wireless remote control ic chip,


  Brief introduction:   

LX2240B is a low power remote control integrated circuit that designed by CMOS technology and burn ISN in advance. It is decoded by software.The ISN has 20bite and can storage 1048576 groups combinations, theefore it can reduce any code collision.

 

Main features:  

1) .Low power consumption quiescent current1uA                                            2) .Operating voltage Vcc=2.4 - 13.0V                      3) .Input four key-press through combination,that

can assemble 15 key-press mostly;

4) .Single oscillator circuit,need one external

resistor only.

5) .Small volume 8 package by SSOP ,it is upgrade

version of LX2260

6) .Compatible with PT2240B absolutely.

 

Application:

Car security system,

Carpot control,

Fan remote control,

Toy remote control,

Other industrial remote control.

 

Encapsulation:  SOP8/DIP8.

Compatiable product: PT2240B.

 

Pin Description;