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PDF SC7461 Data sheet ( Hoja de datos )

Número de pieza SC7461
Descripción INFRARED REMOTE CONTROL TRANSMITTER
Fabricantes Silan Microelectronics 
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No Preview Available ! SC7461 Hoja de datos, Descripción, Manual

SC7461
INFRARED REMOTE CONTROL TRANSMITTER OF 7461 CODE FORMAT
DESCRIPTION
The SC7461 is a remote control transmitter utilizing CMOS
Technology specially designed for infrared applications. It is capable
of controlling 32 function keys and 3 double keys. SC7461 is housed
in 24 pins, SO Package and provides 13 bits Custom Code.
FEATURES
* CMOS Technology
* Low Power Consumption
* 32+3 Function Keys
* Least External Components
* Wide range of operating voltage: VDD=2.0~5.5V
* Double key operation(No order of priority given)
* On-Chip Oscillator can be constructed using an externally
connected ceramic resonator
* Up to 64 Custom Codes may be selected externally for SC7461
SOP-24-375-1.27
APPLICATIONS
* TV and VCR
* Audio Equipment
* Audio Cassette Deck
* Air Conditioner
* Multi-Media DVD Player
ORDERING INFORMATION
Part Number
SC7461-100
SC7461-101
SC7461-103
SC7461-104
Package
SOP-24-375-1.27
SOP-24-375-1.27
SOP-24-375-1.27
SOP-24-375-1.27
Custom Code in Mask ROM
C6~C12=1000000
C6~C12=0000000
C6~C12=0010000
C6~C12=1010000
BLOCK DIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:3.0 2007.07.02
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SC7461 pdf
SC7461
Key 20
Key 21
(H=Key-ON)
Key 22
TraKnDsemyati2as0sionTKraenyDs2ma0tia&ss2i1onTraKnDsemyat2ias1sionTranSstmopisssionTraKnDsemyati2as2sion
Key 20&22
Transmission
Data
FIGURE 3. TRANSMISSION DATA DIAGRAM
When any of the double key combinations (Key No.20&21, Key No.20&22 and Key No.20&23) are pressed:
1).D5 is set to "1"
2).No Key Input Sequence is needed to perform the Double Key Operation
4. SC7461 DATA FRAME
A SC7461 Data Frame consists of 42 bits, namely: 13 bits Custom Code (C0~C12), 8 bits Key Data (D0~D7),
and their respective Inverse Codes. Please refer to the figure below.
C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7
Custom Code (13 bits)
Custom Code (13 bits)
Key Data (8 bits)
FIGURE 4. SC7461 DATA FRAME
Key Data ( 8 bits)
CUSTOM CODE
The Custom Code consists of 13 bits, namely: C0~C12. 7 bits--C6~C12-- are fixed by the on-chip ROM while
6 bits--C0~C5--are pin-settable. SC7461 provides up to 64 custom codes that may be selected externally without
any diode requirement. Please refer to the illustration below.
C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12
Pin-Settable
6 Bits
Mask ROM
7 Bits
FIGURE 5. SC7461 CUSTOM CODE
For example: Given the following setting,
C5 6
V-
C4 5
C3 24
C2 23
C1 22
C0 21
FIGURE 6. EXAMPLE CUSTOM CODE SETTING
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:3.0 2007.07.02
Page 5 of 12

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SC7461 arduino
PACKAGE OUTLINE
SOP-24-375-1.27
SC7461
Unit: mm
1.27
15.34±0.25
13.97
0.25±0.05
0.40 3.10MAX
HANDLING MOS DEVICES:
Electrostatic charges can exist in many things. All of our MOS devices are internally protected against
electrostatic discharge but they can be damaged if the following precautions are not taken:
Persons at a work bench should be earthed via a wrist strap.
Equipment cases should be earthed.
All tools used during assembly, including soldering tools and solder baths, must be earthed.
MOS devices should be packed for dispatch in antistatic/conductive containers.
Note: IC oscillator input mustn't be on the outside layer, thus to avoid the abnormal working when human body
touches the remote controller without crust in testing.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:3.0 2007.07.02
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