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參數(shù)資料
| 型號： | MM54HCT193 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Lockwire |
| 中文描述： | 同步二進制加/減計數(shù)器 |
| 文件頁數(shù)： | 5/9頁 |
| 文件大小： | 146K |
| 代理商： | MM54HCT193 |
Logic Waveforms
’HCT193 Synchronous Binary Counters
Typical Clear, Load, and Count Sequences
TL/F/5742–3
Sequence:
(1) Clear outputs to zero.
(2) Load (preset) to binary thirteen
(3) Count up to fourteen, fifteen, carry, zero, one, and two.
(4) Count down to one, zero, borrow, fifteen, fourteen, and thirteen.
Note A:
Clear overrides load data, and count inputs.
Note B:
When counting up, count-down input must be high; when counting down, count-up input must be high.
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| MM54HCT193J | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Synchronous Binary Up/Down Counters |
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