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參數(shù)資料
| 型號： | UPD17244MC-xxx-5A4 |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTERS |
| 中文描述： | 4位單片微控制器的小型通用兩用紅外遙控遞質(zhì) |
| 文件頁數(shù)： | 43/102頁 |
| 文件大?。?/td> | 461K |
| 代理商： | UPD17244MC-XXX-5A4 |
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43
Data Sheet U15002EJ1V0DS
μ
PD17240, 17241, 17242, 17243, 17244, 17245, 17246
(2) Port 1A
Whether a resistor is connected to each bit of port P1A when a key matrix is not used can be specified in 1-
bit units by using the following register file
Note
.
To connect a resistor, select whether a pull-down or pull-up resistor is to be connected, by using P1AHL
(address 05H) of the register file.
P1ABPU0
0
1
0
P1ABPU0
Address
RF: 07H
After reset
0H
R/W
R/W
1
P1ABPU1
2
P1ABPU2
3
0
Connects resistor to P1A
0
P1ABPU1
0
1
Connects resistor to P1A
1
P1ABPU2
0
1
Connects resistor to P1A
2
Not connected
Connected
Not connected
Connected
Not connected
Connected
Note
To disconnect the resistor in the output mode, clear the corresponding bit of the P1ABPU register.
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| UPD17245MC-XXX-5A4 | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTERS |
| UPD17246 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontrollers for Remote Controllers Pamphlet | Pamphlet[11/2002] |
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| UPD1724X | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTERS |
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