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MM74HC 参数 Datasheet PDF下载

MM74HC图片预览
型号: MM74HC
PDF下载: 下载PDF文件 查看货源
内容描述: 同步十进制计数器具有异步清零 [Synchronous Decade Counter with Asynchronous Clear]
分类和应用: 计数器
文件页数/大小: 6 页 / 148 K
品牌: NSC [ National Semiconductor ]
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Logic Waveforms  
160, 162 Synchronous Decade Counters Typical Clear, Preset, Count and Inhibit Sequences  
Sequence:  
TL/F/5008–4  
(1) Clear outputs to zero  
(2) Preset to BCD seven  
(3) Count to eight, nine, zero, one, two, and three  
(4) Inhibit  
161, 163 Synchronous Binary Counters Typical Clear, Preset, Count and Inhibit Sequences  
Sequence:  
TL/F/5008–5  
(1) Clear outputs to zero  
(2) Preset to binary twelve  
(3) Count to thirteen, fourteen, fifteen, zero, one and two  
(4) Inhibit  
5
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