* 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
HD74LS669 Datasheet (178.39 KB)
HD74LS669
178.39 KB
Synchronous up / down 4-bit binary counter.
HD74LS669 Synchronous Up / Down 4-bit Binary Counter REJ03D0493 0200 Rev.2.00 Feb.18.2005 This synchronous preset table 4-bit binary counte.
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