PCF8811USLASH2DASLASH1 datasheet(16/81 Pages) NXP

16 / 81 page

PCF8811_4

Product data sheet

Rev. 04 — 27 June 2008

16 of 81

NXP Semiconductors

PCF8811

80 x 128 pixels matrix LCD driver

• If the PCF8811 is in Power-save mode, the external LCD supply voltage can be

switched off

7.1.7 T1 to T5: test pads

T1, T2 and T5 must be connected to VSS. T3 and T4 must be left open-circuit. These test

pads are not accessible to the user.

7.1.8 MF2 to MF0

Manufacturer device ID pads. (Manufacturer ID 100 = NXP Semiconductors).

7.1.9 DS0

Device recognition pad; see Table 15.

7.1.10 VOS4 to VOS0

These 5 input pads enable the calibration of the offset of the programmed VLCD; see

Equation 4 and Equation 5 in Section 12.10.

VOS4 to VOS0 must be connected to VDD1 or VSS1.

7.1.11 EXT: extended command set

Input to select the basic command set or the extended command set. Must be connected

on the module to have only one command set enabled; see Table 6.

Remark: NXP Semiconductors recommends that the extended command set is used.

7.1.12 PS0, PS1 and PS2

Parallel/serial/I2C-bus interface selection; see Table 7.

7.1.13 D/C

Input to select either data or command input. Not used in the 3-line serial interface, 3-line

SPI and I2C-bus interface and must be connected to VDD1 or VSS1.

Table 6.

Command set selection

Pad

Level

Description

EXT

LOW (VSS1)

basic command set

HIGH (VDD1)

extended command set

Table 7.

Interface selection

PS[2:0]

Interface

000

3-line SPI

001

4-line SPI

010

no operation

011

6800 parallel interface

100 or 110

high speed I2C-bus interface

101 or 111

3-line serial interface

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