Datasheet > PCF85134HL-1

PCF85134HL-1

更新时间： 2024-11-19 10:16:47

品牌	Logo	应用领域
恩智浦 - NXP		驱动器
页数	文件大小	规格书
40页	206K
描述
Universal LCD driver for low multiplex rates

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PCF85134HL-1 数据手册

PCF85134

Universal LCD driver for low multiplex rates

Rev. 01 — 17 December 2009

Product data sheet

1. General description

The PCF85134 is a peripheral device which interfaces to almost any LCD¹with low

multiplex rates. It generates the drive signals for any static or multiplexed LCD containing

up to four backplanes and up to 60 segments. In addition, the PCF85134 can be easily

cascaded for larger LCD applications. The PCF85134 is compatible with most

microprocessors or microcontrollers and communicates via a two-line bidirectional

I²C-bus. Communication overheads are minimized using display RAM with

auto-incremented addressing, hardware subaddressing, and display memory switching

(static and duplex drive modes).

2. Features

I Single-chip LCD controller and driver

I Selectable backplane drive conﬁgurations: static, 2, 3, or 4 backplane multiplexing

I 60 segment outputs allowing to drive:

N 30 7-segment alphanumeric characters

N 16 14-segment alphanumeric characters

N Any graphics of up to 240 elements

I Cascading supported for larger applications

I 60 × 4-bit display data storage RAM

I Wide LCD supply range: from 2.5 V for low threshold LCDs up to 6.5 V for guest-host

LCDs and high threshold twisted nematic LCDs

I Internal LCD bias generation with voltage follower buffers

I Selectable display bias conﬁgurations: static, ¹⁄₂, or ¹⁄₃

I Wide logic power supply range: from 1.8 V to 5.5 V

I LCD and logic supplies may be separated

I Low power consumption

I 400 kHz I²C-bus interface

I Compatible with any microprocessor or microcontroller

I No external components required

I Display memory bank switching in static and duplex drive mode

I Auto-incremented display data loading

I Versatile blink modes

I Silicon gate CMOS process

1. The deﬁnition of the abbreviations and acronyms used in this data sheet can be found in Section 17.

12 3 4 5 6 7...40

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