M66004FP Mitsumi Electronics, Corp., M66004FP Datasheet
M66004FP
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M66004FP Summary of contents
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DESCRIPTION The M66004 is a 16-digit 5 7-segment vacuum fluorescent display (VFD) controller using the silicon gate CMOS tech- nology. It contains 160 ROM characters and 16 user-defined RAM characters and receives display character codes and various commands from MCU ...
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BLOCK DIAGRAM Display code register Chip CS 14 select input Serial Shift SCK 15 clock input receive circuit Serial SDATA 16 data input Code / command control circuit Display control Reset RESET 13 input register Clock input ...
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PIN DESCRIPTIONS Symbol Pin name RESET Reset input This pin is used to initialize the internal state of the M66004. CS Chip select In “L” state, communication with the MCU is possible. input In “H” state, any instruction from the ...
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DATA TRANSMISSION FORMAT The MCU transmits 8-bit serial data (MSB-first) to the M66004. In either case of command data or character code data, the M66004 operates by transmitting only one-byte data. (Transmission timing) Standard timing CS SCK SDATA (MSB) Continuous ...
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COMMAND LIST Function D7 D6 Display digit length setting 0 0 Dimmer value setting 0 0 One-digit display frequency 1 1 setting Display digit setting 1 1 Auto increment setting 1 1 Cursor Cursor OFF 1 0 ...
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Setting of dimmer value and one-digit display frequency(T 1) Dimmer value setting Dimmer value (See table 2.) 2) One-digit display frequency (T dsp ...
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Write to character RAM for user definition Segment ON/OFF data is written into the character RAM for user definition (35 bits). After write to RAM is declared at the first byte, RAM is selected at the second byte and ...
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DESCRIPTION OF FUNCTION 1. Display digit length setting The display digit length can be set within the range from 9- digit to 16-digit according to the number of digits of VFD. In case that the display digit length is set ...
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Character display A character (refer to the character code table) which corre- sponds to the character code transmitted from the MCU is displayed as the designated digit. The display digit is designated by the display digit setting command. In ...
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ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Supply voltage CC V Pull-down voltage P V Input voltage I V Output voltage O P Maximum power dissipation d T Storage temperature stg Notes 3: Frequency of pulse waveform exceeding ...
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TIMING CONDITIONS (T = – Symbol Parameter t Clock cycle time C t Clock cycle pulse width WH t Clock low pulse width WL t SDATA setup time su(D) t SDATA hold time h(D) ...
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OPERATION FLOWCHART (Initial setting operation) 12 16-DIGIT 5 7-SEGMENT VFD CONTROLLER START PUT OFF ALL- DIGIT DISPLAY SET DISPLAY DIGIT LENGTH SET DIMMER VALUE AND ONE-DIGIT DISPLAY FREQUENCY TRANSMIT RAM WRITE COMMAND TRANSMIT RAM BIT DATA NO BIT DATA TRANSMISSION ...
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CHARACTER CODE LIST (conforming to JIS-C-6220) 0000 0001 0010 Upper codes Lower codes ( 0000 SPASE ( 0001 ( 0010 ( 0011 ( 0100 ...
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APPLICATION EXAMPLE + MCU V SS Serial bus 14 16-DIGIT 5 7-SEGMENT VFD CONTROLLER VFD Heater ANODE GRID (SEGMENT) (DIGIT) Power on reset V SEG DIG RESET ~ ~ SEG DIG 35 15 M66004SP/FP CS ...