品牌索引 产品分类 > 小信号开关二极管> 瞬态电压抑制器TVS/ESD> 双极管二极管> 调谐二极管> 齐纳(稳压)二极管> 小信号肖特基二极管> 频带转换二极管> 中/高功率管> 射频PIN二极管> Sinterglass二极管> 整流器 > N沟道(N-Channel)> P沟道(P-Channel)> 双N沟道(Dual N-Channel)> 双P沟道(Dual P-Channel)> 双N和P沟道(Dual N and P-Channel)
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产品介绍
说明
The CD74HCT4514 and CD74HCT4515 are high-speed silicon-gate devices consisting of a 4-bit strobed latch and a 4-line to 16-line decoder. The selected output is enabled by a low on the enable (E)\ input. A high on E\ inhibits selection of any output. Demultiplexing is accomplished by using E\ as the data input and the select inputs (A0–A3) as addresses. E\ also serves as a chip select when these devices are cascaded. When the latch enable (LE)\ is high, the output follows changes in the inputs (see decode function table). When LE\ is low, the output is isolated from changes in the input and remains at the level (high for the ’4514, low for the ’4515) it had before the latch was enabled. 特性
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