OM6290 NXP Semiconductors, OM6290 Datasheet - Page 12

• 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
UM10300_1
User manual
3.2.3 Block diagram
3.3.1 General Description
3.3 Graphic Driver PCF8531
The PCF8531 is a low power CMOS LCD row/column driver, designed to drive dot matrix
graphic displays (32 rows x 128 columns) at multiplex rates of 1:17, 1:26 and 1:34.
Furthermore, it can drive up to 128 icons. All necessary functions for the display are
provided in a single chip, including on-chip generation of V
V
Fig 3. Block diagram PCF2119x
LCDSENSE
DB3/SA0
V
V
V
V
V
LCD1
V
V
LCD2
DD1
DD2
DD3
SS1
SS2
T1
T2
T3
44 to 49
37 to 43
36
1 to 6
15 to 18
163
7 to 14
22 to 29
30 to 35
153
20
21
DB0 to DB2
GENERATOR
GENERATOR
REGISTER
VOLTAGE
160 to 162
DATA
(DR)
V LCD
BIAS
8
7
Rev. 1.0— 8 August 2008
DB4 to DB7
16 CHARACTERS
RAM (128 × 5)
CHARACTER
GENERATOR
7
(CGRAM)
164 to 167
BUSY
FLAG
I/O BUFFER
CURSOR AND DATA CONTROL
SHIFT REGISTER 5 × 12 BIT
80 CHARACTERS/BYTES
DISPLAY DATA RAM
COLUMN DRIVERS
E
DATA LATCHES
19
C1 to C80
(DDRAM)
80
8
ADDRESS COUNTER
R/W
INSTRUCTION
INSTRUCTION
158
80
80
5
5
60 to 99,
101 to 140
DECODER
REGISTER
(AC)
RS
240 CHARACTERS
7
7
8
8
159
GENERATOR
CHARACTER
(CGROM)
SCL
ROM
151,
152
SDA
156,
157
R17DUP
LCD
100
and the LCD bias
SHIFT REGISTER 18-BIT
7
PCF2119x
User Manual OM6290
ROW DRIVERS
OSCILLATOR
GENERATOR
ADDRESS
COUNTER
R1 to R18
DISPLAY
18
TIMING
UM10300
© NXP B.V. 2008. All rights reserved.
18
51 to 59,
141 to 149
168
155
154
12 of 30
mgw571
OSC
PD
POR