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UPD62AMC Datasheet(PDF) 53 Page - NEC

Part # UPD62AMC
Description  4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
PDF  62 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD62AMC Datasheet(HTML) 53 Page - NEC

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53
µPD62A
Data Sheet U14474EJ1V0DS00
13. APPLICATION CIRCUIT EXAMPLE
Example of Application to System
• Remote-control transmitter (40 keys; mode selection switch accommodated)
• Remote-control transmitter (48 keys accommodated)
Remark When the POC circuit of the mask option is used effectively, it is not necessary to connect the capacitor
enclosed in the broken lines.
KI/O6
KI/O7
S0
S1/LED
REM
VDD
XOUT
XIN
GND
RESET
KI/O5
KI/O4
KI/O3
KI/O2
KI/O1
KI/O0
KI3
KI2
KI1
KI0
Key matrix
8
× 5 = 40 keys
Mode selection switch
+
+
KI/O6
KI/O7
S0
S1/LED
REM
VDD
XOUT
XIN
GND
RESET
KI/O5
KI/O4
KI/O3
KI/O2
KI/O1
KI/O0
KI3
KI2
KI1
KI0
Key matrix
8
× 6 = 48 keys
+
+



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