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UPD64 Datasheet(PDF) 62 Page - NEC

Part # UPD64
Description  4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
PDF  68 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD64 Datasheet(HTML) 62 Page - NEC

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62
µPD63, 63A, 64
(5) Carrier waveform (Enlarged waveform of each code’s high period)
REM output
8.77 s
9 ms or 0.56 ms
Carrier frequency : 38 kHz
26.3 s
µ
µ
(6) Bit array of each code
C0 C1 C2 C3 C4 C5 C6 C7 C0'
C0
or
Co
C1'
C1
or
C1
C2'
C2
or
C2
C3'
C3
or
C3
C4'
C4
or
C4
C5'
C5
or
C5
C6'
C6
or
C6
C7'
C7
or
C7
D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7
Data code
Data code
Custom code'
Custom code
Leader code
Caution To prevent malfunction with other systems when receiving data in the NEC transmission
format, not only fully decode (make sure to check Data Code as well) the total 32 bits of the
16-bit custom codes (Custom Code, Custom Code’) and the 16-bit data codes (Data Code,
Data Code) but also check to make sure that no signals are present.



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