HT12D 12-Bit Decoder IC (HT12D IC) DIP-18 Package

HT12D is a CMOS technology-based 12-bit Decoder. It is generally used with RF communication system applications. 12-bit Decoders can decode up to 2^12 encoded data which is coming from the RF transmitter. This decoded data consists of 8 address bits and 4 data bits. For proper communication, HT12D is should be used with HT12E in the same address and data formate. This device consists of one data input pin that receives the encoded data from the RF receiver pin. Two oscillators pin (OSC1, OSC2) can decide the oscillation frequency of the Decoder by using an oscillator resistor. On proper communication, the Valid Transmission pin (VT) goes High. 

The HT12D ICs have an operating range of VCC from 2.4 V to 12 V. Maximum current consumption is 0.4 mA through Icc and output sink and source current is 1.6 mA. The recommended operating voltage is 5 V.

Working

HT12D decoder will be in standby mode initially, i.e., the oscillator is disabled and a HIGH on DIN pin activates the oscillator. Thus the oscillator will be active when the decoder receives data transmitted by an encoder. The device starts decoding the input address and data. The decoder matches the received address three times continuously with the local address given to pin A0 – A7. If all matches, data bits are decoded and output pins D8 – D11 is activated. This valid data is indicated by making the pin VT (Valid Transmission) HIGH. This will continue till the address code becomes incorrect or no signal is received.

Pin Configuration

 
Features

• 12-bit Decoder IC to be used with HT12E
• Decoded data has 4 Data bits and 8 Address bits (8+4=12-bits)
• Commonly used for RF and IR wireless transmission
• Operating Voltage 5V
• Low standby current of 0.1uA at Vcc=5V
• Available in 16-pin DIP, 20-pin SOP
  
  

Application

• Burglar alarm system
• Smoke and fire alarm system
• Garage door controllers 
• Car door controllers 
• Car alarm system 
• Security system 
• Cordless telephones 
• Other remote control systems

SHIPPING

• We at HatchnHack, believe that you as our customer have ordered the items with enthusiasm and an urgent requirement.
• We try to ship all orders received by 11 AM Indian Standard Time, within 24 hours from the time of order. For order received on Saturdays and Sundays, the effort is to get them dispatched by Monday.
• For ensuring fastest possible delivery time (i.e. the time in which the order reaches your doorstep), we ship your order only through trustworthy and highly reputable courier services.
• We may at a few times be limited by technical and stock issues (based on product specification or ready availability), and have to fulfill your order partially. In such rare scenarios, we shall inform you of the same before dispatching the order.
• Rarely, we may have some operational instances, where we require more than 2 days to dispatch the order. In such a scenario, the customer has the right to request for a complete refund.
• We have the right to process custom orders, and orders provided with bulk discounts in a minimum of 2 working days. The customer may request cancellation of the order, but the decision to refund would depend on factors such as if the materials are already procured or the standing of customer with the company.
• In case you think that the condition of the parcel is not proper, or have any doubts regarding it being tampered with or damaged, kindly contact us through the support channel, on - 8810424663, or through e-mail at 'Sales@HatchnHack.com'.
• For tracking the shipment status of your order, you may either use the 'Track your Order' section of our website, or click on the mail confirmation you received from us with the Tracking Information.
• All packages shall be shipped with an invoice included, mentioning the price as regulated by the Indian Tax Regulations.

RETURNS POLICY

• Our policy lasts 15 days. If 15 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.
• To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
• Several types of goods are exempt from being returned.
• Additional non-returnable items: Gift cards and Downloadable software products
• To complete your return, we require a receipt or proof of purchase.
• Please do not send your purchase back to the manufacturer.
• There are certain situations where only partial refunds are granted (if applicable)
• Any item not in its original condition, is damaged or missing parts for reasons not due to our error
• Any item that is returned more than 15 days after delivery