* an internal carry look-ahead for cascading in high-speed counting applications. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the count-enable inputs and internal gating. This mode of oper
HD74HC669 Datasheet (216.77 KB)
HD74HC669
216.77 KB
Synchronous up/down 4-bit binary counter.
HD74HC668, HD74HC669 Synchronous UP/Down Decade Counter Synchronous Up/Down 4-bit binary Counter REJ03D0638-0200 (Previous ADE-205-520) Rev.2.00 Mar 3.
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