10N-system subtraction counting circuit and chip
A technology of counting circuit and subtraction, which is applied in the direction of pulse counter, counting chain pulse counter, electrical components, etc., can solve the problem of high cost and achieve the effect of low cost
Active Publication Date: 2017-10-24
CR TECH PINGTAN CO LTD
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[0004] The object of the present invention is to provide a 10N base subtraction counting circuit and chip, aiming to solve the problem of high cost of the 10N base subtraction counting module in the existing electronic watch because it is realized by a microcontroller
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[0021] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0022] figure 1 The structure of the 10N subtraction counting circuit provided by the embodiment of the present invention is shown. For ease of description, only the parts related to the present invention are shown, and the details are as follows:
[0023] As a preferred embodiment of the present invention, the input end of the 10N base subtraction counting circuit receives the pulse signal, where N is an integer greater than or equal to 1, and the 10N base subtraction counting circuit includes an inverting module 100 and a first frequency dividing and counting module 200 And the second freque...
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The invention is applicable in the technical field of integrated circuits, and provides a 10N-system subtraction counting circuit and a chip. The 10N-system subtraction counting circuit adopts an inverting module, a first frequency division counting module and a second frequency division counting module with low cost to replace a microcontroller; the inverting module inverts pulse signals and generates inverted pulse signals; the first frequency division counting module executes cyclic subtraction counting from 9 to 0 according to the pulse signals and the inverted pulse signals, and outputs unit subtraction counting results of corresponding binary codes; the second frequency division counting module executes cyclic subtraction counting from N-1 to 0 according to the unit subtraction counting results, and outputs decimal subtraction counting results of corresponding binary codes. The 10N-system subtraction counting circuit realized via the inverting module, the first frequency division counting module and the second frequency division counting module is low in cost.
Description
Technical field [0001] The invention belongs to the technical field of integrated circuits, and particularly relates to a 10N-ary subtraction counting circuit and a chip. Background technique [0002] At present, the decimal subtraction counting function, six decimal subtraction counting function, or one hundred decimal subtraction counting function in electronic watches are usually implemented by microcontrollers. However, the cost of microcontrollers is relatively high. Therefore, the 10N system (N ≥1 and is an integer, 10N base includes decimal and decimal multiples) The cost of the subtraction counting module is also higher. [0003] Therefore, the 10N subtraction counting module in the existing electronic watch has a problem of high cost because it is implemented by a microcontroller. Summary of the invention [0004] The purpose of the present invention is to provide a 10N subtraction counting circuit and chip, which aims to solve the problem of high cost of the 10N subtracti...
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IPC IPC(8): H03K23/66
CPCH03K23/66
Inventor 蔡荣怀曹进伟吴小平乔世成陈孟邦黄国华
Owner CR TECH PINGTAN CO LTD