PCF2119AU/2DA/2,02

LCD DRVR 1.8V/2.5V/3.3V/5V 168Pin Die Waffle

Overview

The PCF2119x is a low power CMOS LCD controller and driver, designed to drive a dot matrix LCD display of 2-lines by 16 characters or 1-line by 32 characters with 5 × 8 dot format. All necessary functions for the display are provided in a single chip, including on-chip generation of LCD bias voltages, resulting in a minimum of external components and lower system current consumption. The PCF2119x interfaces to most microcontrollers via a 4-bit or 8-bit bus or via the 2-wire I²C-bus. The chip contains a character generator and displays alphanumeric and kana Japanese characters.

The letter ‘x’ in PCF2119x characterizes the built-in character set. Various character sets can be manufactured on request. In addition 16 user defined symbols 5 × 8 dot format are available.

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## Features

* Single-chip LCD controller and driver

* 2-line display of up to 16 characters plus 160 icons or 1-line display of up to 32 characters plus 160 icons

* 5 × 7 character format plus cursor; 5 × 8 for kana Japanese and user defined symbols

* Reduced current consumption while displaying icons only

* Icon blink function

* On-chip:

* Configurable 4, 3, or 2 times voltage multiplier generating LCD supply voltage, independent of VDD, programmable by instruction external supply also possible

* Temperature compensation of on-chip generated VLCDOUT: -0.16 %/K to -0.24 %/K programmable by instruction

* Generation of intermediate LCD bias voltages

* Oscillator requires no external components external clock also possible

* Display Data RAM DDRAM: 80 characters

* Character Generator ROM CGROM: 240 characters 5 × 8

* Character Generator RAM CGRAM: 16 characters 5 × 8; 4 characters used to drive 160 icons, 8 characters used if icon blink feature is used in application

* 4-bit or 8-bit parallel bus and 2-wire I²C-bus interface

* Manufactured in silicon gate CMOS process

* 18 row and 80 column outputs

* Multiplex rates 1:18 2-line display or 1-line display, 1:9 for 1-line display of up to 16 characters and 80 icons and 1:2 for icon only mode

* Uses common 11 code instruction set extended

* Logic supply voltage: VDD1 \\- VSS1 = 1.5 V to 5.5 V chip may be driven with two battery cells

* LCD supply voltage: VLCDOUT \\- VSS2 = 2.2 V to 6.5 V

* VLCD generator supply voltage: VDD2 \\- VSS2 = 2.2 V to 4 V and VDD3 \\- VSS2 = 2.2 V to 4 V

* Direct mode to save current consumption for icon mode and multiplex drive mode 1:9 depending on VDD2 value and LCD liquid properties

* Very low current consumption 20 μA to 200 μA:

* Icon mode: < 25 μA

* Power-down mode: < 2 μA

* Icon mode is used to save current. When only icons are displayed, a much lower LCD operating voltage can be used and the switching frequency of the LCD outputs is reduced; in most applications it is possible to use VDD as LCD supply voltage

## Target Applications

* Telecom equipment

* Portable instruments

* Point-of-sale terminals

## Features