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HT12D Decoder IC for Remote Control Systems - RS137

HT12D Decoder IC for Remote Control Systems - RS137

SKU:RS137

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Regular price Rs. 30.00
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  • 18 Pin DIP IC
  • Operating Voltage : 2.4V ~ 12V
  • Low Power and High Noise Immunity CMOS Technology
  • Built-in Oscillator needs only 5% Resistor
  • Minimal External Components

Description:

HT12D is a decoder integrated circuit that belongs to 212 series of decoders. This series of decoders are mainly used for remote control system applications, like a burglar alarm, car door controller, security system etc. It is mainly provided to interface RF and infrared circuits. They are paired with 212 series of encoders. The chosen pair of encoder/decoder should have the same number of addresses and data format. In simple terms, HT12D converts the serial input into parallel outputs. It decodes the serial addresses and data received by, say, an RF receiver, into parallel data and sends them to output data pins. The serial input data is compared with the local addresses three times continuously. The input data code is decoded when no error or unmatched codes are found. A valid transmission is indicated by a high signal at VT pin. The data on 4-bit latch type output pins remain unchanged until new is received.

Pin Description:

Pin No
Function
Name
1
8-bit Address pins for input
A0
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
Ground (0V)
Ground
10
4-bit Data/Address pins for output
D0
11
D1
12
D2
13
D3
14
Serial data input
Input
15
Oscillator output
Osc2
16
Oscillator input
Osc1
17
Valid transmission; active high
VT
18
Supply voltage; 5V (2.4V-12V)
Vcc

Pin Diagram:

Datasheet :

HT12D

Package Included:

1 x HT12D Decoder IC