µPD6121, 6122
8. APPLICATION CIRCUIT EXAMPLE
(1) Example application circuit using µPD6121
+
Ceramic resonator
455 kHz
3V
Infrared-emitting diode
SE303A-C
SE307-C
SE313
OSCO OSCI
VDD
LMP
REM
SE1003-C
2SC2001, 3616
2SD1513, 1616
2SD1614
SEL
µPD6121G-001
V
SS
CCS
KI
0
KI
3
KI/O
0
KI/O
7
V
DD
VDD
Custom code selection resistor
Key matrix
=
8 x 4 = 32 keys
Custom code selection diode
(2) Example application circuit using µPD6122
+
Ceramic resonator
455 kHz
3V
Infrared-emitting diode
SE303A-C
SE307-C
SE313
SE1003-C
OSCO OSCI
VDD
LMP
REM
2SC2001, 3616
2SD1513, 1616
2SD1614
SEL
µPD6122G-001
V
SS
CCS
KI
0
KI
7
KI/O
0
KI/O
7
V
DD
V
DD
Custom code selection resistor
Key matrix
8 x 8 = 64 keys
Custom code selection diode
17
NEC [ NEC ]
