PCF8576DTSLASH2 datasheet(25/57 Pages) NXP

25 / 57 page

PCF8576D

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Product data sheet

Rev. 14 — 10 June 2013

25 of 57

NXP Semiconductors

PCF8576D

Universal LCD driver for low multiplex rates

[1]

The possibility to disable the display allows implementation of blinking under external control.

[2]

Default value.

[3]

The display is disabled by setting all backplane and segment outputs to VLCD.

[4]

Not applicable for static drive mode.

[1]

Default value.

[1]

Default value.

Table 12.

Mode-set command bit description

Bit

Symbol

Value

Description

0, 1see Table 11

6, 5

fixed value

unused

display status[1]

0[2]

disabled (blank)[3]

enabled

LCD bias configuration[4]

0[2]

1⁄3 bias

1⁄2 bias

1 to 0

M[1:0]

LCD drive mode selection

static; BP0

1:2 multiplex; BP0, BP1

1:3 multiplex; BP0, BP1, BP2

00[2]

1:4 multiplex; BP0, BP1, BP2, BP3

Table 13.

Load-data-pointer command bit description

See Section 7.10.1.

Bit

Symbol

Value

Description

0, 1see Table 11

fixed value

5 to 0

P[5:0]

000000[1] to

100111

6 bit binary value, 0 to 39; transferred to the data pointer to

define one of forty display RAM addresses

Table 14.

Device-select command bit description

See Section 7.10.2.

Bit

Symbol

Value

Description

0, 1see Table 11

6 to 3

1100

fixed value

2 to 0

A[2:0]

000[1] to 111 3 bit binary value, 0 to 7; transferred to the subaddress

counter to define one of eight hardware subaddresses

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