UNISONIC TECHNOLOGIES CO,
UT912D
CMOS IC
www.unisonic.com.tw
Copyright 2005 Unisonic Technologies Co.,
1
QW-R502-044,A
DECODERS FOR REMOT E
CONT ROLLER
DES CRIPT ION
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
transferred to the output pins. The V
T
pin also goes high to
indicate a valid transmission.
FEAT URES
* 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 INFORMAT ION
Order Number
Normal
UT912D-D18-T
UT912D-S20-R
UT912D-S20-T
Lead free
UT912DL-D18-T
UT912DL-S20-R
UT912DL-S20-T
Package
Packing
DIP-18
SOP-20
SOP-20
Tube
Tape Reel
Tube
ENCODER/DECORDER CROS S REFERENCE T ABLE
Package
Decoder Part No. Data Pins Address Pins
V
T
Pair Encoder
Encoder
Decoder
UTC
UT912D
4
8
√
UTC
UT912E
DIP-14/18 SOP-16/20 DIP-18
SOP-20