74hc Counter ICs are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for 74hc Counter ICs. The M54/74HC/ are BCD Decade counters and the M54/74HC/ are 4 bit binary counter- s. The CLOCK input is active on the rising edge. Both. 74HC 74HC/HCT; Presettable Synchronous 4-bit Binary Counter; Asynchronous Reset. For a complete data sheet, please also download. The IC
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You could re-interpret the outputs as negative active low logic. The look-ahead carry feature simplifies serial cascading of the counters.
74HC161 Synch 4-bit Counter
This device only counts up. Actually, is it reversible at all? Martin Nikovski 24 3. You may 74hf161 be interested in: When you place an order, your payment is made to SeekIC and not to your seller.
digital logic – 74HC synchronous counter – Electrical Engineering Stack Exchange
I have one question on the 74HC synchronous counter, you can find the datasheet here: You either have to invert the outputs using an additional device or use a different counter. Faithfully describe 24 hours delivery 7 days Changing or Refunding. The ‘HC and ‘HCT are asynchronous reset decade and binary counters, respectively; the ‘HC and ‘HCT devices are decade and binary counters, respectively, that are reset synchronously with the clock. The TE input is gated with the Q outputs of all four stages so that at the maximum count the terminal count TC output goes high for one clock period.
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Counting and parallel presetting are both accomplished synchronously with the negative-to-positive transition of the clock. Home Questions Tags Users Unanswered.
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This TC pulse is used to enable the next cascaded stage.