Philips PCF1303T Datasheet

INTEGRATED CIRCUITS

DATA SH EET

PCF1303T

18-element bar graph LCD driver

Product specification
File under Integrated Circuits, IC01

November 1986

Philips Semiconductors Product specification

18-element bar graph LCD driver PCF1303T

GENERAL DESCRIPTION

The PCF1303T is an 18-element bar graph LCD driver with linear relation to control voltage (Vc) when in pointer or
thermometer mode.

Fig.1 Block diagram.

PACKAGE OUTLINE

PCF1303T: 28-lead mini-pack; plastic (SO28; SOT136A); SOT136-1; 1996 September 02.

November 1986 2

Philips Semiconductors Product specification

18-element bar graph LCD driver PCF1303T

PIN DESCRIPTION

PIN NO. SYMBOL NAME AND FUNCTION

1V
4I
5V
6 to 23 Q
24 Q
25 V
26 V
27 V
28 V

osc

1

SS

to Q

1

R
c
ref min
ref max
DD

FUNCTION TABLE

oscillator pin
mode select input
ground (0 V)
segment outputs

18

back-plane output
control voltage
reference voltage inputs

positive supply voltage

I

1

L pointer
H thermometer

H = HIGH voltage level
L = LOW voltage level

MODE

(1) Pins 2 and 3 should be connected to VSS.

Fig.2 Pin configuration.

November 1986 3