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PCF8531 - 34 x 128 pixel matrix driver

General Description

The PCF8531 is a low-power CMOS1 LCD row and column driver, designed to drive dot matrix graphic displays at multiplex rates of 1:17, 1:26, and 1:34.

Furthermore, it can drive up to 128 icons.

Key Features

  • Single-chip LCD controller and driver.
  • 34 row and 128 column outputs.
  • Display data RAM 34  128 bits.
  • 128 icons (last row is used for icons).
  • Fast-mode I2C-bus interface (400 kbit/s).
  • Software selectable multiplex rates: 1:17, 1:26, and 1:34.
  • Icon mode with multiplex rate 1:2:.
  • Featuring reduced current consumption while displaying icons only.
  • On-chip:.
  • Generation of VLCD (external supply also possible).
  • Selectable linear temperature compen.

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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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PCF8531 34 x 128 pixel matrix driver Rev. 8 — 12 September 2014 Product data sheet 1. General description The PCF8531 is a low-power CMOS1 LCD row and column driver, designed to drive dot matrix graphic displays at multiplex rates of 1:17, 1:26, and 1:34. Furthermore, it can drive up to 128 icons. All necessary functions for the display are provided in a single chip, including on-chip generation of VLCD and the LCD bias voltages, resulting in a minimum of external components and low power consumption. The PCF8531 is compatible with most microcontrollers and communicates via a two-line bidirectional I2C-bus. All inputs are CMOS compatible. Remark: The icon mode is used to reduce current consumption.