PCA8537 View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

Manufacturer

PCA8537

Automotive LCD driver for multiplex rates up to 1:8

NXP Semiconductors. 

NXP Semiconductors

PCA8537

Automotive LCD driver for multiplex rates up to 1:8

8.1.7 Command: Set-VPR

With these two instructions, it is possible to set the target VLCD voltage for the internal

charge pump.

Table 12. Set-VPR - set VPR command bit description

For further information, see Section 8.4.2 on page 24.

Bit

Symbol

Binary value Description

Set-VPR MSB

7 to 4 -

0100

fixed value

3 to 0 VPR[7:4]

0000[1] to

1111[2]

the four most significant bits of VPR[7:0]

Set-VPR LSB

7 to 4 -

0101

fixed value

3 to 0 VPR[3:0]

0000[1] to

1111[2]

the four least significant bits of VPR[7:0]

[1] Default value.

[2] VPR[7:0] = 0h results in Vprog(LCD) = 3 V;

VPR[7:0] = C8h results in Vprog(LCD) = 9 V.

8.1.8 Command: Display-enable

This command allows switching the display on and off. The possibility to disable and

enable the display allows implementation of blinking the entire display under external

control.

Table 13. Display-enable - display enable command bit description

Bit

Symbol

Binary value Description

7 to 1 -

0011100

fixed value

0

E

0[1]

display disabled

backplane and segment outputs are internally

connected to VSS

1

display enabled

[1] Default value.

PCA8537

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 2 — 7 April 2015

© NXP Semiconductors N.V. 2015. All rights reserved.

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