LC75814V: LCD Driver, 1/4 Duty, General-Purpose
The LC75814V is a 1/4 duty general-purpose LCD driver that can be used for frequency display in electronic tuners under the control of a microcontroller. The LC75814V can drive an LCD with up to 64 segments directly. The LC75814V can also control up to 4 general-purpose output ports. Since the LC75814V uses separate power supply systems for the LCD drive block and the logic block, the LCD driver block power-supply voltage can be set to any voltage in the range 2.7 to 6.0 volts, regardless of the logic block power-supply voltage.
Features- Support for 1/4 duty 1/2 bias or 1/4 duty 1/3 bias drive of up to 64 segments under serial data control.
- Serial data input supports CCB format communication with the system controller.
- Serial data control of the power-saving mode based backup function and all the segments forced off function
- Serial data control of switching between the segment output port and the general-purpose output port functions
- High generality, since display data is displayed directly without decoder intervention.
- Independent VLCD for the LCD driver block.(VLCD can be set to any voltage in the range 2.7 to 6.0 volts, regardless of the logic block power-supply voltage.)
- The INH pin can force the display to the off state.
- RC oscillator circuit
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Data Sheets (1)
Package Drawings (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| LC75814V-TLM-E | Active | Pb-free | SSOP-30 | 565AT | 4 | Tape and Reel | 1000 | $1.1166 |
| LC75814VS-TLM-E | Active | Pb-free | SSOP-30 | 565AT | 4 | Tape and Reel | 1000 | $1.155 |
Specifications
| Product | Segments | Key Detection | VDD Min (V) | VDD Max (V) | VLCD Min (V) | VLCD Max (V) | VI for Interface (V) | Operating Temperature (°C) | Output Ports | PWM Outputs | Character Generator | Reset | Contrast Adjustment | Control Command |
|---|
| LC75814V-TLM-E | 1/4 Duty: 64 (48) | | 2.7 | 6 | 2.7 | 6 | VDD | -40 to 85 | 4 | | | | | |
| LC75814VS-TLM-E | 1/4 Duty: 64 (48) | | 2.7 | 6 | 2.7 | 6 | VDD | -40 to 85 | 4 | | | | | |
