PCF8531U NXP [NXP Semiconductors], PCF8531U Datasheet

PCF8531U

Manufacturer Part Number

PCF8531U

Description

34 x 128 pixel matrix driver

Manufacturer

NXP [NXP Semiconductors]

Datasheet

1.PCF8531U.pdf (44 pages)

Current page: 1 of 44
Download datasheet (249Kb)

1. General description

2. Features

The PCF8531 is a low-power CMOS LCD row/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 V

components and low power consumption. The PCF8531 is compatible with most

microcontrollers and communicates via a two-line bidirectional bus (I

are CMOS compatible.

Remark: The icon mode is used to reduce current consumption. When only icons are

displayed, a much lower operating voltage (V

frequency of the LCD outputs is reduced. In most applications it is possible to use V

LCD

PCF8531

34 x 128 pixel matrix driver

Rev. 04 — 13 June 2008

Single-chip LCD controller/driver

34 row and 128 column outputs

Display data RAM 34

128 icons (last row is used for icons)

Fast-mode I

Software selectable multiplex rates: 1:17, 1:26 and 1:34

Icon mode with multiplex rate 1:2:

On-chip:

No external components required

Software selectable bias conﬁguration

Logic supply voltage range V

Supply voltage range for on-chip voltage generator V

2.5 V to 4.5 V

Display supply voltage range V

Low-power consumption, suitable for battery operated systems

Featuring reduced current consumption while displaying icons only

Generation of V

Selectable linear temperature compensation

Oscillator requires no external components (external clock also possible)

Generation of intermediate LCD bias voltages

Power-on reset

Normal mode: 4 V to 9 V

Icon mode: 3 V to 9 V

C-bus interface (400 kbit/s)

LCD

(external supply also possible)

128 bits

and the LCD bias voltages, resulting in a minimum of external

DD1

LCD

to V

SS1

: 1.8 V to 5.5 V

LCD

) can be used and the switching

DD2

and V

DD3

Product data sheet

C-bus). All inputs

to V

SS1

and V

SS2

Related parts for PCF8531U

Related keywords

PCF8531U datasheet
PCF8531U data sheet
PCF8531U pdf datasheet
PCF8531U component
PCF8531U part
PCF8531U distributor
PCF8531U RoHS
PCF8531U datasheet download