upd64a Renesas Electronics Corporation., upd64a Datasheet - Page 53

• Manufacturer Part Number: upd64a
• Description: 4-bit Single-chip Microcontroller For Infrared Remote Control Transmission
• Manufacturer: Renesas Electronics Corporation.

13. APPLICATION CIRCUIT EXAMPLE
Example of application to system
·
Note S
·
Remote-control transmitter (48 keys; mode selection switch accommodated)
Remote-control transmitter (56 keys accommodated)
2
+
: Set this pin to disabled when releasing STOP mode.
+
Mode selection
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
I/O6
I/O7
0
1
DD
OUT
IN
2
/LED
Note
/LED
Data Sheet U14380EJ3V0DS00
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