1999 Aug 16

22

Philips Semiconductors

Product specification

65

× 102 pixels matrix LCD driver

PCF8548

13 LIMITING VALUES

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134); parameters are valid

more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of

the device at these or at any other conditions above those given in the characteristics sections of the specification is not

implied. Exposure to limiting values for extended periods may affect device reliability.

14 HANDLING

Inputs and outputs are protected against electrostatic discharge in normal handling. However, to be totally safe, it is

desirable to take normal precautions appropriate to handling MOS devices (see “Handling MOS Devices”).

15 DC CHARACTERISTICS

unless otherwise specified.

SYMBOL

PARAMETER

MIN.

MAX.

UNIT

supply voltage

−0.5

+6.5

V

supply voltage for internal voltage generator

−0.5

+4.5

V

supply voltage for the LCD

−0.5

+9.0

V

supply current

−50

+50

mA

all input voltages

−0.5

V

DC input current

−10

+10

mA

DC output current

−10

+10

mA

power dissipation per package

−

300

mW

P/out

power dissipation per output

−

30

mW

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

supply voltage

1.9

−

5.5

V

1.8

−

5.5

V

supply voltage for

internal voltage

generator

LCD voltage internally

generated (voltage generator

enabled)

2.4

−

4.5

V

LCD input supply

voltage

LCD voltage externally

supplied (voltage generator

disabled)

4.5

−

9.0

V

LCD output supply

voltage

LCD voltage internally

generated (voltage generator

enabled); note 1

4.5

−

9.0

V

supply current

notes 2 and 3

−

20

−µA

supply current for

internal voltage

generator

−

0.5

−µA

display load; 4

× charge pump;

notes 2 and 3

−

180

−µA