OM6290 NXP Semiconductors, OM6290 Datasheet - Page 55
![DEMO BOARD LCD GRAPHIC DRIVER](/photos/9/4/90479/om6290_sml.jpg)
OM6290
Manufacturer Part Number
OM6290
Description
DEMO BOARD LCD GRAPHIC DRIVER
Manufacturer
NXP Semiconductors
Datasheets
1.PCF8576T1118.pdf
(44 pages)
2.OM6290.pdf
(30 pages)
3.OM6290.pdf
(51 pages)
4.OM6290.pdf
(83 pages)
Specifications of OM6290
Main Purpose
Displays, LCD Controller
Embedded
Yes, MCU, 16/32-Bit
Utilized Ic / Part
PCF2119, PCF8531, PCF8576
Primary Attributes
Character, Graphic and Segment LCD Drivers
Secondary Attributes
JTAG, I²C, UART & USB Interfaces
Description/function
Demo Board
Interface Type
USB, I2C, JTAG, UART
Data Bus Width
4 bit, 8 bit, 16 bit
Operating Voltage
1.8 V to 5.5 V
For Use With/related Products
PCF8576DT, PCF2119S, PCF8531
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
568-4703
NXP Semiconductors
16. Application information
PCF2119X
Product data sheet
16.1 General application information
16.2 Power supply connections for internal V
The required minimum value for the external capacitors in an application with the
PCF2119x are: C
Higher capacitor values are recommended for ripple reduction.
For COG applications the recommended ITO track resistance is to be minimized for the
I/O and supply connections. Optimized values for these tracks are below 50 Ω for the
supply and below 100 Ω for the I/O connections. Higher track resistance reduce
performance and increase current consumption. To avoid accidental triggering of
Power-On Reset (POR) (especially in COG applications), the supplies must be
adequately decoupled. Depending on power supply quality, V
above the specified minimum.
When external LCD supply voltage is supplied, V
avoid any stray current, and V
The PCF2119x I
resistors are connected to a 5 V ±10 % supply.
Fig 37. Recommended V
Fig 38. Recommended V
Drawings are showing alternative circuits.
Decoupling capacitors are not shown in the drawings.
The value of the capacitor should be at least 100 nF.
1.5 V to 5.5 V
2.2 V to 4.0 V
All information provided in this document is subject to legal disclaimers.
2
GND
ext
C-bus interface is compatible with systems, where the I
from pins V
Rev. 9 — 14 April 2011
V
V
V
V
V
DD1
DD2
DD3
SS1
SS2
DD
LCD
013aaa114
connections for internal V
connections for internal V
LCDIN
LCD
to V
must be connected to V
V
SS2
SS
= 100 nF and for pins V
V
V
V
LCDIN
LCDOUT
LCDSENSE
013aaa116
LCDOUT
LCD
LCD
LCD
2.2 V to 4.0 V
should be left open-circuit to
generation
generation
generation
LCDSENSE
DD1
GND
LCD controllers/drivers
may have to be risen
DD
PCF2119x
.
to V
V
V
V
V
V
DD1
DD2
DD3
SS1
SS2
© NXP B.V. 2011. All rights reserved.
013aaa115
2
SS
C pull-up
= 470 nF.
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