CONTATORE DECADI SINCRONO BCD CON PRESET
54F/74F160A # 74F162A Synchronous Presettable BCD Decade Counter General Description The ’F160A and ’F162A are high-speed synchronous decade counters operating in the BCD (8421) sequence. They are synchronously presettable for applications in programmable dividers. There are two types of Count Enable inputs plus a Terminal Count output for versatility in forming synchronous multistage counters. The ’F160A has an asynchronous Master Reset input that overrides all other inputs and forces the outputs LOW. The ’F162A has a Synchronous Reset input that overrides counting and parallel loading and allows all outputs to be simultaneously reset on the rising edge of the clock. The ’F160A and ’F162A are high speed versions of the ’F160 and ’F162. Features Y Synchronous counting and loading Y High-speed synchronous expansion Y Typical count rate of 120 MHz Y Guaranteed 4000V minimum ESD protection
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