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UPD16430A - 1/2/ 1/3/ 1/4 DUTY LCD CONTROLLER/DRIVER

General Description

These pins serve as the LCD driver’s segment signal output pins.

The following display modes can be selected for the LCD driver.

Duty 1/2 Bias 1/2 Display Dot No.

Key Features

  • LCD direct drive (medium voltage output: 14 V MAX. ).
  • Choice of 3 duty cycles 1/2 duty, 1/3 duty, 1/4 duty.
  • Display dot number: 1/2 duty: 120 1/3 duty: 160 1/4 duty: 240.
  • 2 types of drive bias 1/2 bias, 1/3 bias.
  • Choice of 4 types of frame frequency.
  • Multi-chip configuration possible.
  • Control through 8-bit serial interface.
  • On-chip power-on reset circuit.
  • Low-power dissipation CMOS.
  • 3.5 to 6.0 V logic suppl.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MOS INTEGRATED CIRCUIT µPD16430A 1/2, 1/3, 1/4 DUTY LCD CONTROLLER/DRIVER The µPD16430A is an LCD controller/driver that enables the display of LCDs of 1/2 duty, 1/3 duty and 1/4 duty cycle. The LCD controller contained in the µPD16430A employs serial data transfer and uses an automatic increment function for data addresses which eliminates the need to set addresses newly each time. The LCD driver uses a medium voltage output (14 V max.), which enables higher contrast and a wider viewing angle even with a 1/3 or 1/4 duty cycle. By using an on-chip drive bias circuit, it is possible to eliminate the need for external resistors. FEATURES • LCD direct drive (medium voltage output: 14 V MAX.