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參數(shù)資料
| 型號： | UPD4702G |
| 廠商： | NEC Corp. |
| 元件分類： | 通用總線功能 |
| 英文描述： | INCREMENTAL ENCODER 8-BIT UP/DOWN COUNTER CMOS INTEGRATED CIRCUITS |
| 中文描述： | 增量式編碼器8位加/減計數(shù)器CMOS集成電路 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大小： | 167K |
| 代理商： | UPD4702G |
4
μ
PD4702
(3)
Carry & borrow outputs
If the counter performs an up-count operation when the count value is 0FF
H
, an active-low pulse is output to the
Carry output (the pulse width is 25 ns MIN. 120 ns MAX. irrespective of the A/B phase input cycle. Similarly, if the
counter performs a down-count operation when the count value is 00
H
, an active-low pulse is output to the Borrow
output.
A Borrow pulse is also output if a down-count operation is performed while RESET is “H” (during a reset), and
therefore, when a
μ
PD4704 is added, a reset must be executed at the same time.
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