电容触摸传感器 LCD DISPLAY DRIVER
The LC75818PT is 1/8 to 1/10 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 LC75818PT also provide on-chip character display ROM and RAM to allow display systems to be implemented easily. These products also provide up to 4 general-purpose output ports and incorporate a key scan circuit that accepts input from up to 30 keys to reduce printed circuit board wiring.
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- Key input function for up to 30 keys
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- A key scan is performed only when a key is pressed saving power
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- Sleep mode feature
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- Reduces drain current saving power
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- Built-in display adjustment circuit
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- Allows changes to the contrast of the screen
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- A voltage detection type reset circuit is provided.
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- Allows user to initialize the PC and prevents incorrect displays
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- Controls and drives a 5x7, 5x8, or 5x9 dot matrix LCD.
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- Supports accessory display segment drive up to 80 segments
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- Display technique
: 1/8 duty 1/4 bias drive 5x7 dots
: 1/9 duty 1/4 bias drive 5x8 dots
: 1/10 duty 1/4 bias drive 5x9 dots
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- Display digits: 16 digits1 line 5x7 dots, 5x8 dots, 5x9 dots
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- Display control memory
CGROM: 240 characters 5x7, 5x8, or 5x9 dots
CGRAM: 16 characters 5x7, 5x8, or 5x9 dots
ADRAM: 16x5 bits
DCRAM: 64x8 bits
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- Instruction function
Display on/off control
Display shift function
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- The frame frequency of the common and segment output waveforms can be controlled by instructions.
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- Serial data I/O supports CCB format communication with the system controller.
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- Independent LCD driver block power supply VLCD
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- 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.
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- RC oscillator circuit
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