4-bit synchronous counter IC with ripple carry-out, loading capability, and integrated MOD-10 reset functionality
AssigneeKuwait University
InventorAbdullah S. Almekhyal
Life of this patent
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Abstract
A multi-bit binary counter outputs a predetermined binary number of bits reflecting a number of times of triggering an input pin, and providing a binary counter output having a decimal equivalent. A multi-bit binary counter is implemented as a multi-bit synchronous counter IC chip with a ripple carry-out pin and loading functionality. An active output count indication pin is connected to cause the IC to transition states, such as from a HIGH state to a LOW state, when the counter output's decimal equivalent exceeds single-digit numbers. In one configuration, the counter functions selectively as a MOD-10 (decade) or MOD-16 binary counter.
Claims10
A 4-bit synchronous counter integrated circuit (IC), comprising:
- four binary output pins configured to output a 4-bit count representing the number of input triggers;
- a clock input pin configured to increment the count on a rising edge trigger;
- a clear (CLR) input pin configured to reset the output to zero when a LOW signal is applied;
- a ripple carry-out (RCO) output pin configured to indicate when the counter output reaches a maximum binary count (16 counts);
- a load input pin configured to load a user-defined 4-bit starting value from data inputs (A, B, C, D) into the counter on the next clock pulse;
- and
- an active-low output pin (C10) configured to transition from HIGH to LOW when the count exceeds a single decimal digit.
A multi-bit binary counter embodied in an integrated circuit chip (IC), that outputs a predetermined binary number of bits reflecting a number of times of triggering an input means, and providing a binary counter output having a decimal equivalent, the multi-bit binary counter comprising:
- the multi-bit counter implemented as a multi-bit synchronous counter IC chip with a ripple carry-out means and loading functionality;
- and
- active output connection means to cause the IC to transition from a HIGH state to a LOW state when the counter output's decimal equivalent exceeds single-digit numbers;
- and
- said active output connection means transitioning between the from a HIGH state to the LOW state when the counter output's decimal equivalent exceeds predetermined single-digit numbers to enable the IC to function selectively as a MOD10 (decade) or MOD16 binary counter,
- wherein said active output connection means facilitates integration with applications using MOD-10, applications using MOD16 displays and applications using single-digit seven-segment displays,
- wherein, said active output connection means executes a clear (CLR) signal on the counter to enable automatic reset when the count exceeds a predetermined count,
- and wherein said active output connection means enables automatic reset when a count exceeds a predetermined single digit to reduce system complexity.
Dependencies are inferred from the claim text.