Single-board integrated LED lattice module with multifunctional ferroelectric memory

Abstract

The invention discloses a single-board integrated LED lattice module with a multifunctional ferroelectric memory. The single-board integrated LED lattice module comprises a circuit board, a single chip microcomputer, a 16X15 double-color surface-mounted LED lattice circuit, a power interface, an infrared receiving head, a loudspeaker and the multifunctional ferroelectric memory of the model of FM31T378-G, wherein the ferroelectric memory is connected with the single chip microcomputer and the power interface and used for nonvolatile access to randomly edited display content data and outputting time data. The single chip microcomputer controls the ferroelectric memory to pass the lattice circuit and the infrared receiving head, so that the display content data edited randomly can be nonvolatile, a crystal oscillator of a real-time clock of the ferroelectric memory achieves automatic temperature compensation, and time accuracy of the real-time clock can reach error of 2.6 minutes in a year. Application range is widened, for example, the module can be edited to personalized high-accuracy lattice clocks, high-accuracy lattice calendars, nonvolatile lattice toys and nonvolatile lattice mottoes at any time.

Description

technical field [0001] The invention relates to an LED dot matrix module, in particular to a single-board integrated LED dot matrix module with a multifunctional ferroelectric memory. Background technique [0002] Single-board integrated LED dot matrix modules in the prior art, for example, Chinese patent application number 201210032578.6, application date 2012.02.15, publication date 2012.05.09, publication number CN102446478A, "a single-board integrated LED dot matrix module" disclosed by the invention patent ", this module does not have a multi-functional ferroelectric memory, the randomly edited and modified LED dot matrix display content data is volatile, and the time information accuracy of the LED dot matrix display is less than 1 year at -40°C to +85°C The positive and negative error is 2.6 minutes; that is to say, the single-board integrated LED dot matrix module of the prior art, the randomly edited and modified display content data is stored in the volatile random...

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Problems solved by technology

[0002] Single-board integrated LED dot matrix modules in the prior art, for example, Chinese patent application number 201210032578.6, application date 2012.02.15, publication date 2012.05.09, publication number CN102446478A, "a single-board integrated LED dot matrix module" disclosed by the invention patent ", this module does not have a multi-functional ferroelectric memory, the randomly edited and modified LED dot matrix display content data is volatile, and the time information accuracy of the LED dot matrix display is less than 1 year at -40°C to +85°C The positive and negative error is 2.6 minutes; that is to say, the single-board integrated LED dot matrix module of the prior art, the randomly edited and modified display content data is stored in the volatile random access memory, and the volatile random access memory will It will lose its stored content, and the accuracy of the time information displayed by the LED dot matrix cannot reach the monthly plus or minus error of 13 seconds

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