PCF8533 datasheet(27/36 Pages) PHILIPS

27 / 36 page

1999 Jul 30

Philips Semiconductors

Product speciﬁcation

Universal LCD driver for low multiplex rates

PCF8533

10 DC CHARACTERISTICS

VDD = 1.8 to 5.5 V; VSS =0V;VLCD = 2.5 to 6.5 V; Tamb = −40 to +85 °C; unless otherwise speciﬁed.

Notes

1. LCD outputs are open-circuit; inputs at VSS or VDD; external clock with 50% duty factor; I2C-bus inactive.

2. Not tested; given by design.

3. Outputs measured one at a time.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Supplies

VDD

supply voltage

1.8

−

5.5

VLCD

LCD supply voltage

2.5

−

6.5

IDD

supply current

fCLK = 1536 Hz; note 1 −

820

µA

ILCD

LCD supply current

fCLK = 1536 Hz; note 1 −

µA

Logic

VIL

LOW-level input voltage

VSS

−

0.3VDD

VIH

HIGH-level input voltage

0.7VDD

−

VDD

IOL1

LOW-level output current on pads

CLK and SYNC

VOL = 0.4 V; VDD =5V 1

−−

IOH1

HIGH-level output current pad CLK

VOH = 4.6 V;

VDD =5V

−1

−−

IOL2

LOW-level output current pad SDA

VOL = 0.4 V; VDD =5V 3

−−

IL1

leakage current on pads SA0,

A0 to A2, CLK, SDA and SCL

VI =VDD or VSS

−1

−

µA

IL2

leakage current pad OSC

VI =VDD

−1

−

µA

VPOR

Power-on reset voltage level

1.0

1.3

1.6

input capacitance

note 2

−−

7pF

LCD outputs

VBP

DC voltage component on pads

BP0 to BP3

CBP =35nF

−100

−

+100

DC voltage component on pads

S0 to S79

CS =5nF

−100

−

+100

RBP

output resistance at pads BP0 to BP3 VLCD = 5 V; note 3

−

1.5

Ω

output resistance at pads S0 to S79

VLCD = 5 V; note 3

−

6.0

13.5

Ω

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