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PDF SC5272 Data sheet ( Hoja de datos )
| Número de pieza | SC5272 | |
| Descripción | REMOTE CONTROL DECODER | |
| Fabricantes | Silan Semiconductors | |
| Logotipo |  |
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REMOTE CONTROL DECODER PAIRED WITH SC5262
DESCRIPTION
The SC5272 is a remote control decoder paired with SC5262 utilizing
CMOS technology. It has a maximum of 12-bits of tri-state address pins
providing up to 531,441(or 312) address codes; thereby, drastically
reducing any code collision and unauthorized code scanning
possibilities.
FEATURES
* Low power consumption and very high noise immunity
* Up to 12 tri-state code address pins or 6 data pins
* Wide operating voltage range(VCC=3V ~6V)
* Single resistor oscillator
* Latch or Momentary output type
APPLICATION
* Home/automation security system
* Remote control toys or for industrial use
* Remote control fan
* Garage door controller
ORDERING INFORMATION
SC5272
DIP-18
SOP-20
DIP-20
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Page 1 of 12
1 page  
SC5272
OSC
bit "0"
bit "1"
bit "f"
32a
a
4a 12a
12a
4a
Where: a = oscillating clock period . Bit “ f ” is only available for address bits.
The Synchronous bit waveform is 4 bits long with 1/8 bit width pulse. Please refer to the diagram below:
1/8 bit width=4a
4 bit width=128a
Note: 1bit =32a
Code word
A group of Code Bits is called a Code Word. A Code Word consists of 12 AD bits followed by one Sync. Bit.
The 12 AD bits are interpreted as either address or data bits depending on the SC5272 version used. Please
refer to the diagram below:
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 SYNC
Single Resistor Oscillator
The Build-in oscillator circuitry of SC5272 allows a precision oscillator to be constructed by connecting an
external resistor between OSC1 and OSC2 pins. For SC5272 to decode correctly the received waveform, the
oscillator frequency of SC5272 must be 2.5 ~8 times that of transmitting SC5262. It is a good practice to center
the SC5272 oscillator frequency in the window to gain best window margin at both sides. The typical oscillator
frequency with various resistor values for both SC5262 and SC5272 are shown below:
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PACKAGE OUTLINE
DIP-18-300-2.54
DIP-20-300-2.54
SC5272
UNIT: mm
UNIT: mm
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Page 11 of 12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet SC5272.PDF ] | |
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