UNISONIC TECHNOLOGIES CO.,

UT912D

CMOS IC

www.unisonic.com.tw

1

Copyright © 2005 Unisonic Technologies Co.,

QW-R502-044,A

DECODERS FOR REMOTE

CONTROLLER

DESCRIPTION

The UTC UT912D of CMOS LSIs for remote control system

applications are paired with UTC UT912E (refer to the

encoder/decoder cross reference table) and is capable of

decoding information which consists of N address bits and 12-N

data bits. For proper operation, a pair of encoder/decoder with the

same number of addresses and data format should be chosen.

The UTC UT912D also is arranged to provide 8 address bits and

4 data bits.

The decoders receive serial addresses and data from a

programmed UTC UT912E of encoders that are transmitted

together with the header bits by a RF or an infrared transmission

medium upon receipt of a trigger signal. If no error or unmatched

codes are found, the input data codes are decoded and then

indicate a valid transmission.

FEATURES

* Pair with UTC UT912E

* Operating voltage: 2.4V ~ 12V

* Low power and high noise immunity CMOS technology

* Low standby current

* Built-in oscillator needs only 5% resistor

* Binary address setting

* Received codes are checked 3 times

* Capable of decoding 12 bits of information

* Address/Data number combination: 8 address bits and 4 data

bits

* Vaild transmission indicator

* Minimal external components

DIP-18

SOP-20

*Pb-free plating product number: UT912DL

ORDERING INFORMATION

Order Number

Normal

Lead free

Package

Packing

UT912D-D18-T

UT912DL-D18-T

DIP-18

Tube

UT912D-S20-R

UT912DL-S20-R

SOP-20

Tape Reel

UT912D-S20-T

UT912DL-S20-T

SOP-20

Tube

ENCODER/DECORDER CROSS REFERENCE TABLE

Package

Decoder Part No. Data Pins

Address Pins

Pair Encoder

Encoder

Decoder

UTC UT912D

4

8

√

UTC UT912E DIP-14/18 SOP-16/20 DIP-18

SOP-20