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LC75812PT Fiches technique(PDF) 1 Page - ON Semiconductor |
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LC75812PT Fiches technique(HTML) 1 Page - ON Semiconductor |
1 / 54 page 31710HKIM 20100223-S00011,S00012,S00013/N1809HKIM/52709HKIM No.A1417-1/54 http://onsemi.com Semiconductor Components Industries, LLC, 2013 July, 2013 LC75812PT Overview The LC75812PT is 1/8, 1/9 duty dot matrix LCD display controllers/drivers that support the display of characters, numbers, and symbols. In addition to generating dot matrix LCD drive signals based on data transferred serially from a microcontroller, the LC75812PT also provide on-chip character display ROM and RAM to allow display systems to be implemented easily. These products also provide up to 3 general-purpose output ports and incorporate a key scan circuit that accepts input from up to 35 keys to reduce printed circuit board wiring. Features • Key input function for up to 35 keys (A key scan is performed only when a key is pressed.) • Controls and drives a 5×7 or 5×8 dot matrix LCD. • Supports accessory display segment drive (up to 65 segments) • Display technique: 1/8 duty 1/4 bias drive (5×7 dots) 1/9 duty 1/4 bias drive (5 ×8 dots) • Display digits: 13 digits×1 line (5×7 dots), 12 digits×1 line (5×8 dots) • Display control memory CGROM: 240 characters (5 ×7 or 5×8 dots) CGRAM: 16 characters (5 ×7 or 5×8 dots) ADRAM: 13 ×5 bits DCRAM: 52 ×8 bits • Instruction function Display on/off control Display shift function • Sleep mode can be used to reduce current drain. • Built-in display contrast adjustment circuit • Switching between key scan output and general-purpose output ports can be controlled with instructions. • PWM output for adjusting the LED backlight brightness • The frame frequency of the common and segment output waveforms can be controlled by instructions. • Serial data control of switching between the RC oscillator operating mode and external clock operating mode. • Independent LCD driver block power supply VLCD • A voltage detection type reset circuit is provided to initialize the IC and prevent incorrect display. • The INH pin is provided. This pin turns off the display, disables key scanning, and forces the general-purpose output ports to the low level. • RC oscillator circuit Ordering number : ENA1417B CMOS IC 1/8, 1/9 Duty Dot Matrix LCD Display Controllers/Drivers with Key Input Function • CCB is ON Semiconductor® ’s original format. All addresses are managed by ON Semiconductor® for this format. • CCB is a registered trademark of Semiconductor Components Industries, LLC. |
Numéro de pièce similaire - LC75812PT |
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Description similaire - LC75812PT |
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