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LC75812PTH-8565-H Datasheet(PDF) 1 Page - ON Semiconductor |
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LC75812PTH-8565-H Datasheet(HTML) 1 Page - ON Semiconductor |
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1 / 55 page  © Semiconductor Components Industries, LLC, 2017 1 Publication Order Number : June 2017 - Rev. 1 LC75812PT/D www.onsemi.com ORDERING INFORMATION See detailed ordering and shipping information on page 55 of this data sheet. * Computer Control Bus (CCB) is an ON Semiconductor’s original bus format and the bus addresses are controlled by ON Semiconductor. LC75812PT 1/8, 1/9-Duty Dot Matrix LCD Controller / Driver with Key Input Function 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 57 or 58 dot matrix LCD. Supports accessory display segment drive (up to 65 segments) Display technique: 1/8 duty 1/4 bias drive (57 dots) 1/9 duty 1/4 bias drive (5 8 dots) Display digits: 13 digits1 line (57 dots), 12 digits1 line (58 dots) Display control memory CGROM: 240 characters (5 7 or 58 dots) CGRAM: 16 characters (5 7 or 58 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 TQFP100 14x14 / TQFP100 |
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