參數(shù)資料
型號(hào)： PCF2119X
廠(chǎng)商： NXP Semiconductors N.V.
英文描述： LCD controllers/drivers
中文描述： LCD控制器/驅(qū)動(dòng)器
文件頁(yè)數(shù)： 3/68頁(yè)
文件大?。?/td> 346K
代理商： PCF2119X
2003 Jan 30
3
Philips Semiconductors
Product specification
LCD controllers/drivers
PCF2119X
1
FEATURES
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 I
2
C-bus interface
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
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 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
characterset.Variouscharactersetscanbemanufactured
on request.
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