TX2C ATS302T/RX2C ATS302R - Data Sheet - Version 1.02

Oct 12, 2026

Remote controller encoder TX2C ATS302T and decoder RX2C ATS302R form a paired CMOS LSI set for remote-controlled car applications, offering five function keys for forward, backward, right, left, and turbo plus combinational playback. The transmitter includes an auto power-off mode and continuously sends wireless (non-carrier) and infrared (carrier) outputs when keys are held. The receiver supports weak-signal recognition with two high-effective amplifiers and an internal selectable DC-DC converter (0.8V–3.0V input, VOUT≈2.8V, start-up from 1.0V).

LanguageEnglish

CategoryTechnology

FormatPDF

Pages16

Reading Time40 min

AccessFree to download

General Description

Features

Pinouts and Block Diagrams

Absolute Maximum Ratings

Electrical Characteristics

TX2C ATS302T

RX2C ATS302R

珠海炬力集成电路设计有限公司 Actions Semiconductor Co., Ltd. TX2C ATS302T/RX2C ATS302R Data Sheet Version 1.02 Shenzhen Office: Tel: 86-755-82211737 Fax: 86-755-82211771 Hong Kong Office: Tel: 852-23978218 Fax: 852-23978187 Notice: The 5-function TX2C ATS302T/RX2C ATS302R heritages the sophisticated architecture and design methodology from TX2/RX2 of Realtek Semiconductor who is one of the leaders of remote controller technology design of toy product. This pair of TX2C ATS302T/RX2C ATS302R are the best Transmitter/ Receiver choice of remote control car and fully covers TX2RX2 features with superior performance. RX2C ATS302R is the first receiver controller worldwide with internal and selectable DC-DC converter and shift-speed module. The TX2C ATS302T/RX2CATS302R are with more functions and excellent quality, its stability and affectivity promoted to a higher level applications. Actions keeps on leading the designing technique of remote controller of toy product. Copyright pending \# 03500035X to National Intellectual Property and Patent Administration Bureau. Remark: Realtek Semiconductor is the trademark of Taiwan Realtek Semiconductor REMOTE CONTROLLER WITH FIVE FUNCTIONS General Description The TX2C ATS302T/RX2C ATS302R are a pair of CMOS LSIs designed for remote controlled car applications. TX2C ATS302T is the encoder and RX2C ATS302R is the decode. They provide five function keys to control forward, Backward, Rightward, Leftward and Turbo motions. Besides, a combination of these five motions can be played. And RX2C ATS302R provides the selections of Output Signal Format about FORWARD function. TX2C ATS302T is built with auto Power-OFF function. When input key is pulled low, TX2C ATS302T will wake up, SO and SC will continuously send out the outputs used in wireless (Non-Carrier) and infrared (Carrier) applications respectively. When a complete code is sent out and all the keys are open, TX2C ATS302T will automatically go into power-off mode. RX2C ATS302R provides two high effective amplifiers and enhancive Signal Input (SI) recognition circuit for increasing remote control distance. RX2C ATS302R has an internal, selectable DC-DC converter that makes the applicationstable, reliable under lower supply voltage. The input voltage ranges from 0.8v to 3.0V, where VOUT can be set to about 2.8V. Start-up is guaranteed from 1.0V inputs. Features z Wide and Low operating voltage range: 1.5V to 5.0V(TX2C ATS302T and RX2C ATS302R No using DC-DC) 1.0V to 3.0V(RX2C ATS302R Using DC-DC) z 5-function remote controller controlling forward/ backward/ turbo/ right/ left z Provide two transmissive interface (RF and IR) for different application z Selectable Forward Output Signal Format through MOD pin z Few external components needed and Oscillator with an external resistor and a capacitance. z Low Standby current and low operating current. z Typical oscillator frequency: RF: 128KHz IR: 114KHz(Carrier Frequency: 57KHz) IR: 76KHz(Carrier Frequency: 38KHz) z Auto Power-OFF function for TX2C ATS302T z Internal, Selectable DC-DC converter which need few external components z Provide two high effective amplifiers and enhancive signal input (SI) recognition circuit for very weak signal for increasing remote control distance. z RX2C ATS302R has very strong Driving ability about five function-output Pinouts and Block Diagrams TX2C ATS302T (encoder) | Transmitter Pin Assignment TX2C ATS302T
RIGHTB
NC
GND
BACKWARDB
FORWARDB
TURBOB
SC

1 ~~ ~~ 14
234
5
67
TX2C ATS302T
131211
10
98
LEFTB
NC
OSCI
OSCO
PC
VDD
SO | Block Diagram
OSCIOSCO

Oscillator
Timing
Generator
TURBOB LEFTB RIGHTB FORWARDB BACKWARDB

Latch Encoding Circuit Circuit

Logic
PC
SO
SC | | --- | --- | RX2C ATS302R (decoder) | Receiver Pin Assignment RX2C ATS302R
VO2
GND
SI
OSCI
OSCO
RIGH

FAQs

TX2C ATS302T and RX2C ATS302R what roles do they play?

TX2C ATS302T is the encoder, while RX2C ATS302R is the decoder for remote-controlled car applications.

What are the five controllable functions provided by the device pair?

The five keys control forward, backward, rightward, leftward, and turbo motions, and combinations can be played.

How does RX2C ATS302R improve remote control distance and power stability?

RX2C ATS302R uses two high-effective amplifiers and an enhanced signal input recognition circuit for very weak signals, and it includes an internal selectable DC-DC converter to stabilize operation under lower supply voltage.

Oct 12, 2026

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