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參數(shù)資料
| 型號： | 6P8B |
| 廠商： | NEC Corp. |
| 英文描述： | MOS INTEGRATED CIRCUIT 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION |
| 中文描述： | 馬鞍山集成電路4位單片機的紅外遙控傳輸 |
| 文件頁數(shù)： | 63/95頁 |
| 文件大?。?/td> | 692K |
| 代理商： | 6P8B |
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63
μ
PD6P8, 6P8A, 6P8B
Data Sheet U17848EJ3V0DS
12.3 Program Memory Reading Procedure
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Pull down the pins not used to GND via a resistor. Keep the CLK pin low.
Supply 3 V to the V
DD
pin. Keep the V
PP
pin low.
Supply 3 V to the V
PP
pin after waiting for 10
μ
s.
Wait for 2 ms until oscillation of the ceramic resonator connected across the X
IN
and X
OUT
pins stabilizes.
Set the program memory address 0 clear mode by using the mode setting pins.
Supply 10.5 V to V
PP
.
Set the program inhibit mode.
Input a pulse to the CLK pin four times.
Set the verify mode. Data of each address is output sequentially each time the clock pulse is input to
the CLK pin four times.
Set the program inhibit mode.
(10) Set the program memory address 0 clear mode.
(11) Change the voltage on the V
PP
pin to 3 V.
(12) Turn off the power.
(8)
(9)
The following figure illustrates steps (2) through (10) above.
V
PP
V
DD
GND
V
DD
GND
CLK
V
PP
V
DD
D
0
to D
7
MD
0
MD
1
MD
2
MD
3
Reset
Oscillation stabilization
wait time
Hi-Z
Hi-Z
Data output
Data output
"L"
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