PCF8531USLASH2 datasheet(22/44 Pages) PHILIPS

22 / 44 page

2000 Feb 11

Philips Semiconductors

Product speciﬁcation

× 128 pixel matrix driver

PCF8531

12 DC CHARACTERISTICS

VDD1 = 1.8 (1.9) to 5.5 V; VDD2 and VDD3 = 2.5 to 4.5 V; VSS1,2 =0V; VDD1 to VDD3 ≤ VLCD ≤ 9.0 V;

Tamb = −40 to +85 °C; unless otherwise speciﬁed.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Supplies

VLCD

LCD supply voltage

note 1

4.0

−

9.0

icon mode; note 1

3.0

−

9.0

VDD1

logic supply voltage

1.9

−

5.5

Tamb ≥−25 °C

1.8

−

5.5

VDD2, VDD3

multiplier supply voltage

LCD voltage internally

generated

2.5

−

4.5

IDD

supply current

Power-down mode; internal

VLCD

−

210

µA

normal mode; internal VLCD;

notes 2 and 3

−

170

350

µA

normal mode; external VLCD;

note 2

−

µA

ILCD

LCD input current

normal mode; external VLCD;

notes 2 and 4

−

100

µA

icon mode; external VLCD;

notes 2 and 5

−

µA

VPOR

Power-on reset level

note 6

0.9

1.2

1.6

Logic

VIL

LOW-level input voltage

VSS

−

0.3VDD V

VIH

HIGH-level input voltage

0.7VDD −

VDD

IOL

LOW-level output current (SDA)

VOL = 0.4 V; VDD = 5 V

3.0

−−

ILI

input leakage current

VI =VDD or VSS

−1

−

µA

Column and row outputs

Ro(col)

column output resistance

C0 to C127

note 7

−

Ω

Ro(row)

row output resistance R0 to R33

note 7

−

Ω

Vbias(col)

bias tolerance C0 to C127

−100

+100

Vbias(row)

bias tolerance R0 to R33

−100

+100

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