參數資料
型號: UPD64A
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
中文描述: 4位單片機的紅外遙控傳輸
文件頁數: 53/64頁
文件大小: 399K
代理商: UPD64A
53
μ
PD64A, 65
Data Sheet U14380EJ2V0DS00
13. APPLIED CIRCUIT EXAMPLE
Example of Application to System
· Remote-control transmitter (48 keys; mode selection switch accommodated)
Note
S
2
: Set this pin to disable when releasing STOP mode.
· Remote-control transmitter (56 keys accommodated)
K
I/O6
K
I/O7
S
0
S
1
/LED
REM
V
DD
X
OUT
X
IN
GND
S
2
K
I/O5
K
I/O4
K
I/O3
K
I/O2
K
I/O1
K
I/O0
K
I3
K
I2
K
I1
K
I0
Key matrix
8
×
7 = 56 keys
+
+
K
I/O6
K
I/O7
S
0
S
1
/LED
REM
V
DD
X
OUT
X
IN
GND
S
2
Note
K
I/O5
K
I/O4
K
I/O3
K
I/O2
K
I/O1
K
I/O0
K
I3
K
I2
K
I1
K
I0
Key matrix
8
×
6 = 48 keys
+
+
Mode select
switch
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