M202SD22AA VACUUM FLUORESCENT DISPLAY MODULE APPLICATION NOTE
●Consisting of a VFD, one chip controller, DC-DC converter, the module can be operated by a parallel interface or a synchronous serial interface, and only 5 voltage power source is required to operate the module.
●FEATURE
■This vacuum fluorescent display (VFD) module consists of a 20 character by 2 line 5×8 dot matrix display, DC-DC converter, and controller/driver circuitry.
■The module can be configured for a Motorola M68-type parallel interface, an Intel I80-type parallel interface, or a synchronous serial interface.
■When the module is shipped, the parallel (Motorola M68-type) mode is set.
■A character generator ROM with 240 5×8 characters is provided along with RAM for the user to program an additional 8 characters. The luminance level of the VFD can be varied by setting two bits in the function set instruction.
■Two hundred and forty character fonts consisting of alphabets, numerals and other symbols can be displayed.
■This module has a dual-port RAM that allows data and instructions to be the module continuously. Thus, the busy flag is always 0 and the host never has to read the busy flag bit to determine if the module is busy.
■ue to this feature, the execution times for each instruction are not specified.
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VACUUM FLUORESCENT DISPLAY MODULE 、 vacuum fluorescent display (VFD) module |
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2013/8/20 |
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AN-E-2361A |
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898 KB |
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