OM6290 NXP Semiconductors, OM6290 Datasheet - Page 39

• Manufacturer Part Number: OM6290
• Description: DEMO BOARD LCD GRAPHIC DRIVER
• Manufacturer: NXP Semiconductors

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
15. Application information
PCF8531
Product data sheet
Fig 29. Typical system configuration
V
DD1
V
SS1
V
to V
DD(I2C)
15.1 Typical system configuration
15.2 Power supply connections for internal V
, V
RES
SDA
SCL
DD3
SS2
The host microprocessor/microcontroller and the PCF8531 are both connected to the
I
pull-up resistors. The internal oscillator requires no external components. The appropriate
intermediate biasing voltage for the multiplexed LCD waveforms are generated on-chip.
The only other connections required to complete the system are to the power supplies
(V
2
Fig 30. Recommended V
R pu
C-bus. The SDA and SCL lines must be connected to the positive power supply via
DD
, V
R pu
SS
1.8 V (1.9 V) to 5.5 V
and V
MICROCONTROLLER
MICROPROCESSOR/
V
2.5 V to 4.5 V
SS
All information provided in this document is subject to legal disclaimers.
LCD
HOST
GND
) and suitable capacitors for decoupling V
1 μF
1 μF
Rev. 05 — 10 August 2010
DD
V
V
V
V
V
connections for internal V
DD1
DD2
DD3
SS1
SS2
V
V
013aaa354
SS1
SS2
,
PCF8531
V
LCD
LCD
128 column drivers
LCD
34 row drivers
2.5 V to 4.5 V
generation
generation
34 x 128 pixel matrix driver
LCD
GND
1 μF
and V
V
V
V
V
V
LCD PANEL
PCF8531
DD1
DD2
DD3
SS1
SS2
© NXP B.V. 2010. All rights reserved.
DD
013aaa355
.
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