资料介绍
74LS169.pdf Synchronous 4-Bit Up Down Binary Counter
54LS169 DM54LS169A DM74LS169A
June 1989
54LS169 DM54LS169A DM74LS169A
Synchronous 4-Bit Up Down Binary Counter
General Description
This synchronous presettable counter features an internal counting up and approximately equal to the low portion of
carry look-ahead for cascading in high-speed counting ap-
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