lc74781m Sanyo Semiconductor Corporation, lc74781m Datasheet
lc74781m
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lc74781m Summary of contents
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... Overview The LC74781 and LC74781M are on-screen display CMOS LSIs that display characters and patterns screen under microprocessor control. The LC74781 and LC74781M display lines of 24 characters, each dot matrix. Features • Display structure: 12 lines 288 characters) • ...
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Pin Functions Pin No. Symbol Function Ground SS 2 Xtal IN Crystal oscillator connection 3 Xtal OUT 4 CTRL1 Crystal oscillator input switching 5 BLANK Blanking output 6 OSC IN LC oscillator connection 7 OSC OUT 8 ...
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Pin Assignment Specifications Absolute Maximum Ratings 25°C Parameter Maximum supply voltage Maximum input voltage Maximum output voltage Allowable power dissipation Operating temperature Storage temperature Allowable Operating Ranges –30 to +70°C Parameter Symbol V 1 ...
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Electrical Characteristics –30 to +70°C, V Parameter Symbol Input off leakage current I 1 leak Output off leakage current I 2 leak Output high level voltage Output low level voltage ...
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Serial Data Input Timing LC74781, 74781M No. 4988-5/16 ...
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System Block Diagram LC74781, 74781M No. 4988-6/16 ...
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Display Control Commands The display control commands have a serial input format with 8-bit units. A command consists of a command identifier code in the first byte and data in the second and subsequent bytes. There are eight commands as ...
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COMMAND0 (Display memory write address setup command) First byte DA0 to DA7 Register name State 7 — — — — ...
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Second byte DA0 to DA7 Register name State 7 — Note: ...
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COMMAND3 (Horizontal display start position and horizontal character size setup command) First byte DA0 to DA7 Register name State 7 — — — — HS21 HS20 1 0 ...
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Second byte DA0 to DA7 Register name State 7 — BLK2 BLK1 BLK0 BK1 BK0 DSPON 1 Note: ...
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Second byte DA0 to DA7 Register name State 7 — — — BCL PH2 PH1 PH0 1 Note: The register ...
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Second byte DA0 to DA7 Register name State 7 — RN2 RN1 RN0 SN3 SN2 SN1 SN0 1 Note: ...
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Display Screen Structure The display consists of 24 characters 12 rows. The maximum number of displayed character is 288. The maximum number of characters is reduced to less than 288 when the character size is enlarged. Display memory addresses are ...
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Composite Video Signal Output Level (internally generated level) CV Output level V : Character CHA V 1: Border Background color high RSH V : Color burst high CBH V : Background color low RSL V 0: Border ...
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No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property ...