MXED102
Clare Micronix MXED102
240-Channel OLED Column Driver
For All Passive-Matrix
Organic-Light-Emitting-
Diode (OLED) Displays
 Monochrome and Color
 Small-Molecule and
Polymer
 Current-SourcingAnode
Drivers
FEATURES
• CMOS High Voltage Pro-
cess: 9-30V Display Panel
Supply Compatible
• 240 Output Channels,
Cascadable
• Token-Based Bidirectional
Data Transfer: Direct User
Control of Scan Rate
• Current Source Magnitude
Control: 4 µA to 1mA
• 6-Bit Monochromatic/Color
Gray-Scale
• Tight current matching: ± 2%
± 1.5 µA Intra-die, ± 1% Inter-
die
OVERVIEW
Device settings, such as precharge voltage,
The MXED102* is Clare Micronix’s second-
generation OLED column driver offering, which
directly supports up to 240-monochromatic or
80-color OLED pixels. The MXED102’s excep-
tionally tight current-matching of adjacent and
cascaded outputs, precharge options, and
OLED monitoring capability, ensures uniform
luminance and highquality gray-scaling in both
monochromatic and RGB mode. This is the first
production driver for OLED module OEM’s build-
ing a new standard in flat-panel displays.
current magnitude, precharge time, color
mode, and others, are set by writing to a
bank of control registers via a serial port.
Some registers of the serial port are also
available for readback. Several devices may
share the serial bus, but only the device
with its MASTER_IN pin pulled high will
respond to a read request. Each column
output has three possible sources: ground,
to turn the LED off; a precharge voltage to
bring the diode rapidly up to its threshold
voltage; and a current source, which is used
to turn the diode on. The precharge feature
brings the LED’s up to their threshold volt-
age quickly and accurately, so that the
current source may immediately illuminate
the diode instead of having to charge the
parasitic capacitance of the diodes up to
the threshold voltage.
• Monochromatic/Color Voltage
Precharge
• Built-inA-to-D Converter
Monitoring of Display Panel
Characteristics
• 3V to 5.5V logic supply
• 25 MHz Clock Frequency
• Gold-Bumped Die or TCP
packaging
FUNCTIONAL DESCRIPTION
• Compatible with Clare
Micronix 200-Series Row
Drivers
The MXED102 is capable of driving 240 col-
umns (LED anodes) of an OLED display. Out-
puts are divided into 3 groups of 80 in order to
support color (red, green, blue) displays. Each
group has an individual setting for voltage
precharge and current magnitude. Individual
output luminance is controlled by setting the
exposure time (amount of time the current driver
is on) for that output.
*Patent Pending