PCF8551 | NXP Semiconductors

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Universal 36 × 4 LCD Segment Driver

PCF8551 Active

PCF8551 is an ultra low-power LCD segment driver with 4 backplane- and 36 segment-driver outputs, with either an I²C- (PCF8551A) or an SPI-bus (PCF8551B) interface. It comprises an internal oscillator, bias generation, instruction decoding, and display controller.

Product Details

Key Features

Microcontrollers (MCUs)

  • Single chip LCD controller and driver
  • Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing
  • Selectable display bias configuration: static, 1⁄2, or 1⁄3
  • Internal LCD bias generation with buffers
  • 36 segment drives:
    • Up to 18 7-segment numeric characters
    • Up to 9 14-segment alphanumeric characters
    • Any graphics of up to 144 segments/elements
  • Auto-incrementing display data and instruction loading
  • Versatile blinking modes
  • Independent supplies of VLCD and VDD
  • Power supply ranges:
    • 1.8 V to 5.5 V for VLCD
    • 1.8 V to 5.5 V for VDD
  • Ultra low-power consumption
  • 400 kHz I²C-bus interface (PCF8551A)
  • 3 MHz SPI-bus interface (PCF8551B)
  • Internally generated or externally supplied clock signal

Buy/Parametrics

2 results

Include 0 NRND

Part

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CAD Model

Package Type

Type Classification

VDD1 [min] (V)

VDD1 [max] (V)

VLCD [min] (V)

VLCD [max] (V)

ffr

PCF8551ATT
Data Sheet

TSSOP48

LCD Segment Drivers

1.8

5.5

1.8

5.5

128.0

PCF8551BTT
Data Sheet

TSSOP48

LCD Segment Drivers

1.8

5.5

1.8

5.5

128.0

Documentation

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Compact List

Application Note (1)
Brochure (2)
Data Sheet (1)
Package Information (1)
Packing Information (1)
Selector Guide (1)
Supporting Information (1)

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2 design files

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1 hardware offering

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