MM54HC190/MM74HC190 SynchronousDecade Up/Down Counters with ModeControl MM54HC
2008-08-06 09:42
74HC190英文手册
2016-11-02 19:59
74HC190 datashee—英版数据手册。
2016-08-26 17:20
The CD54/74HC190 are asynchronously presettable BCD decade counters, whereas the CD54/74HC
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MM54HC190/MM74HC190 SynchronousDecade Up/Down Counters with ModeControl MM54HC
2008-08-06 09:43
HD74HC190 HD74HC191 数据表
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HD74HC190 HD74HC191 数据表
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1SS190 pdf datasheet
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TC74HC240,TC74HC244/TC74HC241 pdf datasheet
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DM54LS190/DM74LS190, DM54LS191/DM74LS191Synchronous 4-Bit Up/Down Counters with Mode ControlGeneral
2008-08-06 12:25
