1. General description

PCA8561 is an ultra low-power LCD segment driver with 4 backplane- and 18

segment-driver outputs, with either an I2C- or an SPI-bus interface. It comprises an

internal oscillator, bias generation, instruction decoding, and display controller.

For a selection of NXP LCD segment drivers, see Table 24 on page 45.

2. Features and benefits

 AEC-Q100 grade 2 (up to 105 C) compliant for automotive applications

 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

 18 segment drives:

 Up to 9 7-segment numeric characters

 Up to 4 14-segment alphanumeric characters

 Any graphics of up to 72 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 (PCA8561AHN)

 5 MHz SPI-bus interface (PCA8561BHN)

 Internally generated or externally supplied clock signal

 Tiny package: HVQFN32, 5 mm  5 mm

3. Applications

 Small displays integrated

 in a car instrument cluster

 in a control knob

 Battery operated applications

 Healthcare devices