The TX2B + RX2B is a pair of dedicated RF wireless transmitter and receiver ICs, commonly used for simple remote-control and wireless data communication applications. They are typically supplied as DIP-14 through-hole packages, making them convenient for prototyping, repair work, and breadboard circuits.

Key Specifications

Parameter	Description
IC Pair	TX2B + RX2B
TX IC	TX-2B – RF transmitter encoder
RX IC	RX-2B – RF receiver decoder
Package	DIP-14
Mounting	Through-hole
Communication	Wireless RF
Application	Remote control / wireless switching
Typical Use	RF remote-control systems
Channel Support	Multi-function control depending on circuit configuration
Logic Interface	Digital control signals
Type	Encoder + decoder IC pair

TX-2B Transmitter IC

The TX-2B is used on the transmitting side. It accepts control inputs such as buttons or switches and converts the selected command into coded signals suitable for transmission through an RF transmitter circuit.

Typical functions include:

Button/switch input processing
Command encoding
Remote-control signal generation
RF transmitter control
Multiple control channels depending on the implementation

RX-2B Receiver IC

The RX-2B operates on the receiving side. It receives the decoded command information from the RF receiver section and produces corresponding control outputs.

It can be used to control:

Relays
LEDs
Motors
Electronic switches
Alarm circuits
Remote-controlled appliances

Typical System

Remote buttons → TX-2B → RF transmitter → RF receiver → RX-2B → Output/Relay

The TX-2B and RX-2B are therefore normally used together as a matched transmitter/receiver control system rather than as a general-purpose microcontroller.

Features

Original TX-2B + RX-2B IC combination
DIP-14 package for easy soldering
Through-hole construction
Suitable for RF remote-control circuits
Simple digital control interface
Useful for replacement and repair of RF remote-control boards
Suitable for DIY wireless-control projects
Can interface with transistor or relay driver stages
Low-complexity alternative to microcontroller-based remote systems

Applications

Wireless remote switches
Garage/gate remote controls
Toy control systems
Wireless relay control
Alarm systems
Lighting control
Door-control systems
DIY RF projects
Replacement of damaged TX/RX control ICs

ORIGNAL TX2B + RX2B (TX-2B + RX-2B) DIP-14 IC