Holtek HT12E-20SOP, Encoder, 8 to 1, 2.4 → 12 V, 20-Pin SOP

  • RS Stock No. 885-0709
  • Mfr. Part No. HT12E-20SOP
  • Manufacturer Holtek
Product overview and Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

HT12E/D Encoder/Decoder chipset

The HT12E/D chipset works with an Ir or RF transmitter and receiver device to make a 4-button remote control system.

8-bit ID (Address) code set by switches
Encoder sends packet containing ID code and button-pressed data four times on serial channel
Decoder reads data packet and if ID matches it's own settings, data transferred to four data output pins
Received codes are checked three times
Power supply: +2.4V to +12Vdc
Operating temperature range: -20 to +75°C
Applications: Security systems, Smoke & fire alarm systems, Garage door controllers, Car door controllers, Car alarm systems

RS Product Codes
885-0692 HT12E-18DIP Encoder DIP18 package
885-0709 HT12E-20SOP Encoder SOP20 package
885-0702 HT12D-18DIP Decoder DIP18 package
885-0705 HT12D-20SOP Decoder SOP20 package

Attribute Value
Logic Family HT12
Logic Function Encoder
Encoding Type Key
Number of Element Inputs 8
Number of Element Outputs 1
Mounting Type Surface Mount
Package Type SOP
Pin Count 20
Dimensions 12.8 x 7.5 x 2.35mm
Height 2.35mm
Length 12.8mm
Maximum Operating Supply Voltage 12 V
Maximum Operating Temperature +75 °C
Minimum Operating Supply Voltage 2.4 V
Width 7.5mm
Minimum Operating Temperature -20 °C
456 In stock for delivery within 3 working days
Price Each (In a Tube of 38)
HK$ 6.571
(exc. GST)
Per unit
Per Tube*
38 - 38
76 - 152
190 - 342
380 - 722
760 +
*price indicative