PCF8545 datasheet(44/68 Pages) NXP

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NXP Semiconductors

PCF8545

Universal LCD driver for multiplex rates up to 1:8

12 Static characteristics

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

Supplies

VDD

supply voltage

1.8

5.5

VLCD

LCD supply voltage

VLCD ≥ VDD

2.5

5.5

IDD(pd)

power-down mode supply current

[1] -

0.5

μA

see Figure 37

external 9.6 kHz clock

[2] -

μA

internal oscillator

[2] -

μA

IDD

supply current

power-down, see

Figure 38

[1][3] -

μA

IDD(LCD)

LCD supply current

display active, see

Figure 39

[4] -

140

μA

Logic

input voltage

VSS - 0.5

VDD + 0.5 V

VIL

LOW-level input voltage

on pins OSCCLK,

A0 and RESET

0.3VDD

VIH

HIGH-level input voltage

on pins OSCCLK,

A0 and RESET

0.7VDD

output voltage

-0.5

VDD + 0.5 V

VOH

HIGH-level output voltage

driving load of 50 μA

on pins OSCCLK

0.8VDD

VOL

LOW-level output voltage

driving load of 50 μA

on pins OSCCLK

0.2VDD

IOH

HIGH-level output current

output source current;

VOH = VDD - 0.4 V

on pin OSCCLK

VDD = 1.8 V

0.7

1.6

VDD ≥ 3.3 V

1.5

4.0

IOL

LOW-level output current

output sink current;

VOL = 0.4 V

on pin OSCCLK

VDD = 1.8 V

VDD ≥ 3.3 V

leakage current

Vi = VDD or VSS; on

pin OSCCLK

-1

μA

I2C-bus[5]

On pins SCL and SDA

Table 32. Static characteristics

PCF8545

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

Product data sheet

Rev. 2 — 4 October 2021

44 / 68

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