{"error":{"root_cause":[{"type":"query_shard_exception","reason":"failed to create query: {\n \"regexp\" : {\n \"keyword\" : {\n \"value\" : \".*SN74F163A,pdf(Synchronous 4-Bi.*\",\n \"flags_value\" : 65535,\n \"max_determinized_states\" : 10000,\n \"boost\" : 1.0\n }\n }\n}","index_uuid":"SON-ziQURzKK3JljPlVlCQ","index":"recommend_keyword_search_v1"}],"type":"search_phase_execution_exception","reason":"all shards failed","phase":"query","grouped":true,"failed_shards":[{"shard":0,"index":"recommend_keyword_search_v1","node":"-Gn7X2aRSFmN2hMyaNEUCA","reason":{"type":"query_shard_exception","reason":"failed to create query: {\n \"regexp\" : {\n \"keyword\" : {\n \"value\" : \".*SN74F163A,pdf(Synchronous 4-Bi.*\",\n \"flags_value\" : 65535,\n \"max_determinized_states\" : 10000,\n \"boost\" : 1.0\n }\n }\n}","index_uuid":"SON-ziQURzKK3JljPlVlCQ","index":"recommend_keyword_search_v1","caused_by":{"type":"illegal_argument_exception","reason":"expected ')' at position 34"}}}]},"status":400}
有比SN74LVCU04A更快速的反相器吗?
2018-11-12 09:38
SN74HC244和SN74LV244在选型比较中有提到其Data rate分别为56Mbps和220Mbps。 1:(重点)是通过在Datasheet中Switching
2024-12-04 08:31
求教,HD74LS74与SN74LS74的区别是啥?
2017-10-10 20:27
请问sn74lvc4245a有没有锁存功能
2014-07-14 18:38
之前采用HD74LS48P,驱动数码管工作正常,更换为我们的SN74LS48N后就不工作了,在输入端都是低电平的时候,输出a~g也都低电平,帮忙分析一下什么原因造成的,感谢
2016-05-28 10:32
用的触发器是SN74LVC1G79DCKR,想做简单的正交解码,但是手册上逻辑表里写的逻辑是这样的:实际使用是却发现CLK下降沿时Q也会输出D的状态,如下图(黄色CLK,红色D,蓝色Q): 手册如下:SN74LVC1G79D.pdf (431.28 KB )
2019-07-22 02:35
求74LS163芯片的内部电路图
2019-05-10 12:18
哪位高手指导下SN74LBC174外围电路怎么设计的?
2013-06-19 15:28
使用SN74CB3Q3125接口片出现A到B数据不导通,直接由B端输入方波,A端都没有任何变化,不知道有没有同样遇到这种问题的朋友
2017-06-13 21:35
本来使用SN74CB3Q3125作为缓冲试用一下,结果A和B之间数据不能导通,不知道怎么回事,有没有遇到过类似问题的朋友
2017-06-13 22:16