Philips Semiconductors
Product specification
LCD controllers/drivers
CONTENTS
1
1.1
2
3
4
5
6
6.1
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
7.12
7.13
7.14
7.15
7.16
7.17
8
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
8.10
8.11
FEATURES
Note
APPLICATIONS
GENERAL DESCRIPTION
ORDERING INFORMATION
BLOCK DIAGRAM
PAD INFORMATION
Pad functions
FUNCTIONAL DESCRIPTION
LCD supply voltage generator
Programming ranges
LCD bias voltage generator
Oscillator
External clock
Power-on reset
Power-down mode
Registers
Busy flag
Address Counter (AC)
Display Data RAM (DDRAM)
Character Generator ROM (CGROM)
Character Generator RAM (CGRAM)
Cursor control circuit
Timing generator
LCD row and column drivers
Reset function
INSTRUCTIONS
Clear display
Return home
Entry mode set
Display control (and partial power-down mode)
Cursor or display shift
Function set
Set CGRAM address
Set DDRAM address
Read busy flag and read address
Write data to CGRAM or DDRAM
Read data from CGRAM or DDRAM
16.5
16.6
17
18
19
20
21
22
9
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
9.10
9.11
9.12
10
10.1
10.2
11
12
13
14
15
16
16.1
16.2
16.3
16.4
PCF2119X
EXTENDED FUNCTION SET
INSTRUCTIONS AND FEATURES
New instructions
Icon control
IM
IB
Normal/icon mode operation
Direct mode
Voltage multiplier control
Screen configuration
Display configuration
TC1 and TC2
Set V
LCD
Reducing current consumption
INTERFACES TO MPU
Parallel interface
I
2
C-bus interface
LIMITING VALUES
HANDLING
DC CHARACTERISTICS
AC CHARACTERISTICS
TIMING CHARACTERISTICS
APPLICATION INFORMATION
General information
Charge pump characteristics
8-bit operation, 1-line display using external
reset
4-bit operation, 1-line display using external
reset
8-bit operation, 2-line display
I
2
C-bus operation, 1-line display
DEVICE PROTECTION DIAGRAMS
BONDING PAD LOCATIONS
DATA SHEET STATUS
DEFINITIONS
DISCLAIMERS
PURCHASE OF PHILIPS I
2
C COMPONENTS
2003 Jan 30
2
Philips Semiconductors
Product specification
LCD controllers/drivers
1
FEATURES
PCF2119X
•
Single-chip LCD controller/driver
•
2-line display of up to 16 characters + 160 icons, or
1-line display of up to 32 characters + 160 icons
•
5
×
7 character format plus cursor; 5
×
8 for kana
(Japanese) and user defined symbols
•
Icon mode: reduced current consumption while
displaying icons only
•
Icon blink function
•
On-chip:
– Configurable 4 (3 and 2) times 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;
4 characters used to drive 160 icons, 8 characters used
if icon blink feature is used in application
•
4 or 8-bit parallel bus and 2-wire
•
CMOS compatible
•
18 row and 80 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
SS
= 1.5 to 5.5 V
(chip may be driven with two battery cells)
•
Display supply voltage range, V
LCD
−
V
SS
= 2.2 to 6.5 V
•
HVgen supply voltage range, V
DD2
−
V
SS
= 2.2 to 4 V
and V
DD3
−
V
SS
= 2.2 to 4 V
I
2
C-bus
interface
•
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
µA):
– Icon mode: <25
µA
– Power-down mode: <2
µA.
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 PCF2119x is a low power CMOS LCD controller and
driver, designed to drive a dot matrix LCD display of 2-line
by 16 or 1-line by 32 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 PCF2119x 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 PCF2119x characterizes the built-in
character set. Various character sets can be manufactured
on request.
2003 Jan 30
3
TI Technology Forum
京公网安备 11010802033920号
EEWORLD
