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
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
1/4 Duty General-Purpose LCD DriverENN6792/D (175kB)0
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SSOP30 (275mil)565AT (58.6kB)A
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LC75814V-TLM-EActivePb-freeSSOP-30565AT4Tape and Reel1000$1.1166
LC75814VS-TLM-EActivePb-freeSSOP-30565AT4Tape and Reel1000$1.155
Specifications
ProductSegmentsKey DetectionVDD Min (V)VDD Max (V)VLCD Min (V)VLCD Max (V)VI for Interface (V)Operating Temperature (°C)Output PortsPWM OutputsCharacter GeneratorResetContrast AdjustmentControl Command
LC75814V-TLM-E1/4 Duty: 64 (48)2.762.76VDD-40 to 854
LC75814VS-TLM-E1/4 Duty: 64 (48)2.762.76VDD-40 to 854
1/4 Duty General-Purpose LCD Driver (175kB) LC75814V
SSOP30 (275mil) LV8139JA