OM6211 NXP Semiconductors, OM6211 Datasheet - Page 7

• Manufacturer Part Number: OM6211
• Description: 48 X 84 Dot Matrix Lcd Driver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
8.9
Generates 4 intermediate LCD bias voltages. The bias
system is selectable; see Section 9.9.
8.10
The OM6211 contains 48 row and 84 column drivers,
which connect the appropriate LCD bias voltages in
sequence to the display in accordance with the data to be
displayed. Figure 3 shows typical waveforms.
8.11
A reset initializes the chip. It can be performed either by
the RES pin being LOW or by a command.
2002 Jan 17
handbook, full pagewidth
48
Bias voltage generator
LCD row and column drivers
Reset
84 dot matrix LCD driver
V DD2
V DD1
SCLK
RES
SCE
SDA
V SS
V SS
MICROCONTROLLER
MICROPROCESSOR/
HOST
Fig.2 Typical system configuration.
V SS1, 2
V DD2, 3
V DD1
7
OM6211
9
The OM6211 is a low power LCD driver designed to
interface with microprocessors/microcontrollers and a
wide variety of LCDs.
The host microprocessor or microcontroller and the
OM6211 are connected via a serial interface. The internal
oscillator requires no external components. The
appropriate intermediate bias voltages for the multiplexed
LCD waveforms are generated on-chip. The only other
connections required to complete the system are to the
power supplies (V
capacitors for decoupling V
FUNCTIONAL DESCRIPTION
V LCD
84 column drivers
48 row drivers
DD1
, V
DD2
LCD
, V
SS
PANEL
and V
LCD
MGU273
and V
Product specification
DD2
LCD
.
OM6211
) and suitable