2240B-1 remote control encode circuit

 

Hz

 

80K

 

Fop

Operating frequency

mA

 

 

3

Iol

Vcc = 12V,Vol = 6V

Driven sink current

mA

 

 

5

Ioh

Vcc = 12V,Voh = 6V

Driven pull current

mA

1.0

0.5

 

Iop

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

Operating current

uA

1.0

 

 

Isb

Vcc = 12V,OSC stop ,OutPut Unloaded

Quiescent current

V

15

12

2.4

Vcc

Operating voltage

Unit

Most

Type

Least

Sign

Condition

Parameter

Electric characteristic:  

mW

24

Vcc = 12Vempty

Most power consumption

Pdis

oC

-20 70

Operating temperature

Top

oC

-40 125

Storage temperature

Tst

V

-0.3Vcc+ 0.3

Output voltage

VO

V

-0.3Vcc+ 0.3

Input voltage

VI

V

-0.3~15

Supply voltage

Vcc

Unit

Scope

Conditon

Parameter

Sign

Limit parameter:

I

8

Oscillator circuitry input pin,connect resistor to power supply

OSC

I

7

Key-press input pin,contain pull-down resistor

D3

I

6

Key-press input pin,contain pull-down resistor

D2

I

5

Key-press input pin,contain pull-down resistor

D1

I

4

Key-press input pin,contain pull-down resistor

D0

O

3

Code output pin

TXD

 

2

Negative Power Supply

Vss

 

1

Poisitive Power Supply

Vcc

I / O

Pin

Description

Sign

Pin Description:  

Cmpatiable product: PT2240B.

Encapsulation:  SOP8/DIP8.

Other industrial remote control.

Toy remote control,

Fan remote control, 

Carpot control,

Car security system,

Application:

6 . Compatible with PT2240B absolutely.

version of LX2260

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

resistor only.

4 .Single oscillator circuit,need one external

can assemble 15 key-press mostly;

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

Main features:

LX2240B-1 is one study code IC 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. It is the upgrade version of LX2240B.

Brief introduction:  

LX2240B-1 is dedicated for wireless code sending.There are 20 bites ISN and can burn 1,000,000 code combinations in advance.

  • Operating Temperature:-20~70
  • Dissipation Power:24mW
  • Supply Voltage:-0.3~15V
  • Application:Alarm
  • Type:Other
  • Model Number:2240B-1
  • Brand Name:LX
  • Place of Origin:Zhejiang China (Mainland)
  • Country:China (Mainland)
  • telephone:86-571-89908066
Delivery Time: 3-5days
Package: according customer's request
Minimum Order Quantity: 5000 Unit/Units
Payment Terms: L/C,T/T
Port: Shanghai/Ningbo
Fob Price: US$0.18-0.19Shanghai/Ningbo
Operating Temperature: -20~70
Dissipation Power: 24mW
Supply Voltage: -0.3~15V
Application: Alarm
Type: Other
Model Number: 2240B-1
Brand Name: LX
Place of Origin: Zhejiang China (Mainland)
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