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PDF SM5172 Data sheet ( Hoja de datos )
| Número de pieza | SM5172 | |
| Descripción | 3 RF ENCODER | |
| Fabricantes | SamHop Microelectronics Corp. | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SM5172 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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SAMHOP Microelectronics Corp.
SM5172
312 RF ENCODER
GENERAL DESCRIPTION
SM5172 is a remote control decoder paired
with SM5162 utilizing CMOS Technology. It
has 12-bit tri-state address pins providing a
maximum of 531,411 (or 312) address codes;
thereby, drastically reducing any code
collision and unauthorized code scanning
possibilities. SM5172 is available in several
options to suit every application needs :
variable number of data output pins, latch or
momentary output type.
APPLICATIONS
* Car security
* Garage door
* Home security/Automation system
* Toys
* Remote control for industrial use
BLOCK DIAGRAM
FEATURES
* CMOS Technology
* Low power consumption
* Very high noise immunity
* Up to 12 tri-State code address pins
* Up to 6 data pins
* Wide range of operating voltage:
Vcc= 3 ~ 12 Volts
* Single resistor oscillator
* Latch or momentary output type
* Available in DIP and SOP package
Signal
DIN Re-Shap
Decode
Timing
Generator
Address
Compare
Data
Compare
VT
OSC
OSC1 OSC2
Address
Data
A0 A5
A6/D5 A11/D0
Page 1
OCT. 2001
1 page  
SAMHOP Microelectronics Corp.
SM5172
312 RF ENCODER
Code Word
A group of Code Bits is called a code Word. A Code Word consists of 12 Address plus Data
bits followed by one Sync Bit. The 12 AD bits are interpreted as either address or data bits
depending on the SM5172 version used. Please refer to the diagrams below:
SM5172
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11
SM5172-M2/L2
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 D1 D0
SM5172-M3/L3
A0 A1 A2 A3 A4 A5 A6 A7 A8 D2 D1 D0
SM5172-M4/L4
A0 A1 A2 A3 A4 A5 A6 A7 D3 D2 D1 D0
SM5172-M5/L5
A0 A1 A2 A3 A4 A5 A6 D4 D3 D2 D1 D0
SM5172-M6/L6
A0 A1 A2 A3 A4 A5 D5 D4 D3 D2 D1 D0
SYNC
SYNC
SYNC
SYNC
SYNC
SYNC
One Complete Code Word
Page 5
OCT. 2001
5 Page 
SAMHOP Microelectronics Corp.
APPLICATION CIRCUIT
RF
Receiver
SM5172
312 RF ENCODER
A0 VDD
A1 VT ROSC VT
A2 OSC1
A3 OSC2
A4 DIN
A5 A11
A6 A10
A7 A9
Vss A8
SM5172
Page 11
OCT. 2001
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet SM5172.PDF ] | |
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