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UPD64 Folha de dados(PDF) 55 Page - NEC

Nome de Peças UPD64
Descrição Electrónicos  4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
PDF  68 Pages
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Fabricante Electrônico  NEC [NEC]
Página de início  http://www.nec.com/
Logo NEC - NEC

UPD64 Folha de dados(HTML) 55 Page - NEC

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55
µPD63, 63A, 64
13. APPLIED 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 dotted 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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