{"error":{"root_cause":[{"type":"query_shard_exception","reason":"failed to create query: {\n \"regexp\" : {\n \"keyword\" : {\n \"value\" : \".*SN54HC541, SN74HC541,pdf(OCTAL.*\",\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\" : \".*SN54HC541, SN74HC541,pdf(OCTAL.*\",\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}
想了解下SN54HC14, SN74HC14这两个片子,在5v供电情况下,能进行3.3v到5v的电平转换,或者3.3v供电情况下,能进行5v到3.3v的电平转换么?
2019-06-21 06:09
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
TI的CD74HC244和SN74HC244有什么区别
2025-01-14 07:11
sn74ahc138与sn74hc138有什么区别?是否可以互换互换使用?
2025-02-12 07:42
Sn74hc245是缓冲器,但是具体的用法不会
2024-09-10 07:32
请问下TXB0106 与SN74HC151能否直接搭配使用?目前 SN74HC151的地址选择ABC的电压能被正常的level shift。但是SN74HC151上的数据信号却不能正常的转换。
2019-05-08 12:00
哪位大侠能够简述一下SN74HC4040PW型号芯片的作用?
2025-02-10 06:20
( OE1或OE2 )输入为高电平时,所有八个输出在高阻抗状态。在“ HC541设备在输出端提供真实的数据。产品特点:2 V至6 V工作电压范围宽大电流三态输出驱动总线行直接或高达15输入通道负载低功耗
2017-07-12 11:48
看到这篇文章,身为新手的我果断记录下来。公司不同+历史原因,实际区别不大CD是harris的前缀,SN是TI的前缀。但TI也同时出品CD前缀的,可能是为了保持连续性。 74HC/LS/HCT/F
2017-07-05 15:17
求解~萌新用了SN74HC574PW来锁存数据,供电2V,接入的端口电平3.3V,结果供电的电压升高到2.5V~~只有一分,求各位帮忙解疑~
2020-03-20 10:53