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Date of release: June 2013

Document order number: 9397 750 17455

Printed in the Netherlands

pca8538u key features

` 102 segments and 9 backplane outputs

- Graphics with up to 918 display elements

- Up to 114 seven-segment alphanumeric characters

- Up to 57 fourteen-segment numeric characters

` Multiplex rates selectable from static up to 1:9

` On-chip generation of V

` Software-programmable temperature compensation of V

LCD

for high, stable contrast over full temperature range:

6 programmable temperature ranges and 8 programmable

slopes

` Software-programmable and factory-calibrated frame

frequency from 45 to 300 Hz

` Integrated temperature sensor with temperature readout

` Up to four ICs can be cascaded to drive displays up to

4 x 918 elements

` Wide power supply range: 2.5 to 5.5 V

` Extended operating temperature range: -40 to +105 °C

` AEC-Q100 compliant for automotive applications

` Bare die with bumps for cost-saving Chip-On-Glass (COG)

applications

pca8885ts key features

` Capacitive 8-channel touch and proximity sensor with auto-

calibration

` Adjustable sensitivity and response time

` Three sensing modes: one-key, two-keys, N-keys

- Up to 8 sensors in one-key mode

- Up to 28 sensors in two-keys mode

` Two event handling modes: push-button and toggle

` One sub-address for cascading two ICs (up to 64 sensors)

` Power supply range: 2.5 to 5.5 V

` Low power consumption

- 10 µA in operating mode

` Operating temperature range: -40 to +85 °C

` TSSOP28 package: 9.7 x 4.4 x 0.9 mm

` AEC-Q100 compliant for automotive applications

sample displays

Glass

ITO touch layer

Polarizer

ITO layer

(electrode)

Liquid crystal

on-cell ito touch layer

Type

Package and description

Delivery format

IC version

PCA8538UG/2DA/Q1

Bare die; 247 bumps; 5.88 x 1.20 x 0.4 mm

Chip in tray

1

PCA8885TS/Q900/1

TSSOP28: plastic small outline package; 28

leads; body size: 9.7 mm x 4.4 mm x 0.9 mm

Tape and reel, 13 inch

1

ordering information

Compared to the normal structure,

where the ITO touch glass is

implemented outside the LCD

structure, the on-cell technology

offers the following advantages:

- Simpler structure: two glass layers

instead of three

- Thinner thickness

- Easier assembly

- Lower cost

Touch-sensitive display for climate control with fan,

air-conditioning, clock, and ventilation controls. Each

touch-sensitive icon is implemented as an outline icon

and a solid icon. Outline icons indicate where to touch;

solid icons display after the outline icon is touched.