PCA9620 datasheet(2/71 Pages) NXP

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PCA9620

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Product data sheet

Rev. 1 — 9 December 2010

2 of 71

NXP Semiconductors

PCA9620

Universal LCD driver for low multiplex rates

Ordering information

Marking

Block diagram

Table 1.

Ordering information

Type number

Package

Name

Description

Version

PCA9620H

LQFP80

plastic low profile quad flat package; 80 leads;

body 12

× 12 × 1.4 mm

SOT315-1

Table 2.

Marking codes

Type number

Marking code

PCA9620H

PCA9620H/Q900

(1) The charge pump can generate a maximum output voltage of 3

× V

DD2.

Fig 1.

Block diagram of PCA9620

013aaa246

LCD

VOLTAGE

SELECTOR

CLOCK SELECT

AND TIMING

OSCILLATOR

INPUT

FILTERS

POWER-ON

RESET

CLK

SCL

SDA

BACKPLANE

OUTPUTS

DISPLAY

CONTROL

BP0 to BP7

DISPLAY SEGMENT OUTPUTS

DISPLAY REGISTER

OUTPUT BANK SELECT

S0 to S59

PCA9620

LCD BIAS

GENERATOR

VSS

VLCD

COMMAND

DECODER

WRITE DATA

CONTROL

VDD1

VDD2

CHARGE

PUMP(1)

(VOLTAGE

MULTIPLIER)

T1 T2

TEMPERATURE

SENSOR

I2C-BUS

CONTROLLER

DATA POINTER,

AUTO INCREMENT

DISPLAY RAM

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