UPD65 NEC [NEC], UPD65 Datasheet - Page 53

• Manufacturer Part Number: UPD65
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
• Manufacturer: NEC [NEC]

13. APPLIED CIRCUIT EXAMPLE
Example of Application to System
· Remote-control transmitter (48 keys; mode selection switch accommodated)
Note S
· Remote-control transmitter (56 keys accommodated)
2
+
+
: Set this pin to disable when releasing STOP mode.
Mode select
switch
+
+
K
K
S
S
REM
V
X
X
GND
S
K
K
S
S
REM
V
X
X
GND
S
I/O6
I/O7
0
1
DD
OUT
IN
2
/LED
Note
I/O6
I/O7
0
1
DD
OUT
IN
2
/LED
Data Sheet U14380EJ2V0DS00
K
K
K
K
K
K
K
K
K
K
K
K
I/O5
I/O4
I/O3
I/O2
I/O1
I/O0
K
K
K
K
I/O5
I/O4
I/O3
I/O2
I/O1
I/O0
K
K
K
K
I3
I2
I1
I0
I3
I2
I1
I0
Key matrix
8
Key matrix
8
6 = 48 keys
7 = 56 keys
PD64A, 65
53