PCF8545ATTSLASHA datasheet(47/72 Pages) NXP

47 / 72 page

PCF8545

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

Product data sheet

Rev. 1 — 13 November 2013

47 of 72

NXP Semiconductors

PCF8545

Universal LCD driver for multiplex rates up to 1:8

[1]

Power-down mode is enabled; I2C-bus or SPI-bus inactive.

[2]

1:8 multiplex drive mode; 1⁄4 bias; display enabled; LCD outputs are open circuit; RAM is all written with logic 1; inputs at VSS or VDD;

default display prescale factor; I2C-bus or SPI-bus inactive.

[3]

Strongly linked to VLCD voltage. See Figure 38.

[4]

1:8 multiplex drive mode; 1⁄4 bias; display enabled; LCD outputs are open circuit; RAM is all written with logic 1; default display prescale

factor.

[5]

The I2C-bus interface of PCF8545 is 5 V tolerant.

[6]

Variation between any two backplanes on a given voltage level; static measured.

[7]

Variation between any two segments on a given voltage level; static measured.

[8]

Outputs measured one at a time.

I2C-bus[5]

On pins SCL and SDA

input voltage

VSS  0.5

5.5

VIL

LOW-level input voltage

0.3VDD

VIH

HIGH-level input voltage

0.7VDD

output voltage

0.5

+5.5

leakage current

VI =VDD or VSS

1-

A

On pin SDA

IOL

LOW-level output current

output sink current

VDD =1.8 V

5.5

VDD =3.3 V

SPI-bus

input voltage

on pin SCL

VSS  0.5

5.5

on pins CE and SDI

VSS  0.5

VDD + 0.5

On pins SCL, CE and SDI

VIL

LOW-level input voltage

0.3VDD

VIH

HIGH-level input voltage

0.7VDD

leakage current

VI =VDD or VSS

1-

A

LCD outputs

V

output voltage variation

on pins BP0 to BP7

[6] -2.5

+10

on pins S0 to S43

[7] -2.5

+10

output resistance

VLCD = 5.5 V;

on pins BP0 to BP7

[8] -0.9

5.0



VLCD = 5.5 V;

on pins S0 to S43

[8] -1.5

6.0



Table 33.

Static characteristics …continued

VDD = 1.8 V to 5.5 V; VSS = 0 V; VLCD = 2.5 V to 5.5 V; Tamb = 40 C to +85 C; unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

PCF8545ATT/A датащи(PDF) 47 Page - NXP Semiconductors

PCF8545ATT/A датащи(HTML) 47 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72

датащи скачать

ссылки URL