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參數(shù)資料
| 型號： | UPD6122 |
| 廠商： | NEC Corp. |
| 英文描述： | REMOTE CONTROL TRANSMISSION CMOS IC |
| 中文描述： | 遙控傳輸CMOS集成電路 |
| 文件頁數(shù)： | 16/28頁 |
| 文件大?。?/td> | 170K |
| 代理商： | UPD6122 |
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μ
PD6121, 6122
16
Figure 7-2. Application Circuit for Continuous Command Transmission Mode
1
Continuous command transmission for all keys
Note 1
REM output is input to KI
0
with diode D.
2
Continuous command transmission for key output lines
REM output is input to KI/O with diode D.
Continuous command transmission can be performed for keys whose KI/O output lines have received diode
D input
Note 2
.
Notes 1.
Double-key transmission cannot be performed.
2.
If the KI/O
5
output line (double-input key) is in the continuous command transmission mode,
double-input key transmission is not performed (D
5
does not become 1).
Caution
When the voltage drop of the REM output is large, the signal is not transmitted accurately.
Therefore, keep the REM output current within 1 mA.
220 pF
455 kHz
OSCO
OSCI
V
DD
LMP
220 pF
REM
V
SS
100
82
2.2 k
12 k
V
DD
V
DD
CCS
KI
2
KI
0
KI
3
KI
1
KI/O
0
KI/O
1
KI/O
2
KI/O
3
KI/O
4
KI/O
5
KI/O
6
KI/O
7
μPD6121G-001
μPD6121G-002
Ceramic resonator
Transmission
display
47 μF
+
-
Custom code selection resistor
Diode D
Key matrix
Custom code selection diode
220 pF
455 kHz
OSCO
OSCI
V
DD
LMP
220 pF
REM
V
SS
100
82
2.2 k
12 k
V
DD
V
DD
CCS
KI
2
KI
0
KI
3
KI
1
KI/O
0
KI/O
1
KI/O
2
KI/O
3
KI/O
4
KI/O
5
KI/O
6
KI/O
7
μPD6121G-001
μPD6121G-002
Ceramic resonator
Transmission
display
47 μF
+
-
Custom code selection resistor
Diode D
Custom code selection diode
*
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