PD64A_15 Datasheet, PDF (55/66 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLERS FOR INFRARED REMOTE CONTROL TRANSMISSION

µPD64A, 65
13. APPLICATION CIRCUIT EXAMPLE
Example of application to system
· ^{Remote-control transmitter (48 keys; mode selection switch accommodated)}
KI/O6
KI/O5
KI/O7
KI/O4
S0
KI/O3
+
S1/LED
KI/O2
REM
KI/O1
VDD
KI/O0
XOUT
KI3
XIN
KI2
GND
KI1
S2^Note
KI0
Mode selection
switch
Note S2: Set this pin to disabled when releasing STOP mode.
· ^{Remote-control transmitter (56 keys accommodated)}
Key matrix
8 × 6 = 48 keys
KI/O6
KI/O5
KI/O7
KI/O4
S0
KI/O3
+
S1/LED
KI/O2
REM
KI/O1
VDD
KI/O0
XOUT
KI3
XIN
KI2
GND
KI1
S2
KI0
Key matrix
8 × 7 = 56 keys
Data Sheet U14380EJ3V0DS00
53