
2001 Dec 19
3
Philips Semiconductors
Product specification
LCD controllers/drivers
PCF2113x
1
FEATURES
Single-chip LCD controller/driver
2-line display of up to 12 characters + 120 icons, or
1-line display of up to 24 characters + 120 icons
5
×
7 character format plus cursor; 5
×
8 for kana
(Japanese) and user defined symbols
Icon mode: reduced current consumption while
displaying
Icon blink function
On-chip:
– Configurable 4, 3 or 2 voltage multiplier generating
LCD supply voltage, independent of V
DD
,
programmable by instruction (external supply also
possible)
– Temperature compensation of on-chip generated
V
LCD
:
0.16 to
0.24 %/K (programmable by
instruction)
– Generation of intermediate LCD bias voltages
– Oscillator requires no external components
(external clock also possible).
Display data RAM: 80 characters
Character generator ROM: 240, 5
×
8 characters
Character generator RAM: 16, 5
×
8 characters;
3 characters used to drive 120 icons, 6 characters used
if icon blink feature is used in application
4 or 8-bit parallel bus and 2-wire I
2
C-bus interface
CMOS compatible
18 row and 60 column outputs
Multiplex rates 1 : 18 (for normal operation), 1 : 9 (for
single line operation) and 1 : 2 (for icon only mode)
Uses common 11 code instruction set (extended)
Logic supply voltage range V
DD1
V
SS1
= 1.8 to 5.5 V
(chip may be driven with two battery cells)
V
LCD
generator supply voltage range
V
DD2
V
SS2
= 2.2 to 4.0 V
Display supply voltage range V
LCD
V
SS2
= 2.2 to 6.5 V
Direct mode to save current consumption for icon mode
and Mux 1 : 9 (depending on V
DD2
value and LCD liquid
properties)
Very low current consumption (20 to 200
μ
A):
– Icon mode: <25
μ
A
– Power-down mode: <2
μ
A.
1.1
Note
Icon mode is used to save current. When only icons are
displayed, a much lower operating voltage V
LCD
can be
used and the switching frequency of the LCD outputs is
reduced. In most applications it is possible to use V
DD
as
V
LCD
.
2
APPLICATIONS
Telecom equipment
Portable instruments
Point-of-sale terminals.
3
GENERAL DESCRIPTION
The PCF2113x is a low power CMOS LCD controller and
driver, designed to drive a dot matrix LCD display of 2-line
by 12 or 1-line by 24 characters with 5
×
8 dot format.
All necessary functions for the display are provided in a
single chip, including on-chip generation of LCD bias
voltages, resulting in a minimum of external components
and lower system current consumption. The PCF2113x
interfaces to most microcontrollers via a 4 or 8-bit bus or
via the 2-wire I
2
C-bus. The chip contains a character
generator and displays alphanumeric and kana
(Japanese) characters. The letter ‘x’ in PCF2113x
characterizes the built-in character set. Various character
sets can be manufactured on request.