PCF2113X Datasheet, PDF (3/72 Pages) NXP Semiconductors – LCD controllers/drivers

Philips Semiconductors
LCD controllers/drivers
Product specification
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 I²C-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 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 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 I²C-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.
2001 Dec 19
3