PCF8820U Philips Semiconductors, PCF8820U Datasheet - Page 2

• Manufacturer Part Number: PCF8820U
• Description: 67 x 101 Grey-scale/ECB colour dot matrix LCD driver
• Manufacturer: Philips Semiconductors

Philips Semiconductors
CONTENTS
1
2
3
4
5
6
6.1
6.2
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.2.6
6.2.7
6.2.8
6.2.9
6.2.10
6.2.11
6.2.12
6.2.13
6.2.14
6.2.15
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
7.12
7.13
7.14
7.15
7.16
7.17
2000 Dec 07
67 101 Grey-scale/ECB colour dot matrix
LCD driver
FEATURES
APPLICATIONS
GENERAL DESCRIPTION
ORDERING INFORMATION
BLOCK DIAGRAM
PINNING
Pad configuration
Pad functions
Row driver outputs
Column driver outputs
Ground supply
Supply voltage
Voltage multiplier output
Voltage multiplier regulation input
Supply voltage of bias voltage generator
LCD intermediate bias voltages
Serial data input
Serial data output
Serial clock input
Slave address inputs
Oscillator signal input
External reset input
Test pads
FUNCTIONAL DESCRIPTION
Oscillator
I
Input filters
Display Data RAM (DDRAM)
Timing generator
Address counter
Display address counter
Command decoder
Column driver outputs
Row driver outputs
Bias voltage generator
High voltage generator
Temperature compensation
Temperature sensor
LCD driver waveforms
DDRAM to display mapping
DDRAM addressing
2
C-bus interface controller
2
7.18
7.18.1
7.18.2
7.18.3
7.18.4
7.18.5
7.18.6
7.18.7
8
8.1
8.1.1
8.1.2
8.1.3
8.1.4
8.1.5
8.1.6
8.1.7
8.1.8
8.1.9
8.1.10
8.2
9
10
11
12
13
13.1
13.2
13.3
13.4
13.5
13.6
14
15
16
17
18
19
20
21
I
Bit transfer
START and STOP conditions
System configuration
Acknowledge
I
Command decoder
Display data byte
INSTRUCTIONS
Description of the bit functions
Power-down mode
Partial screen mode
Y-address of DDRAM
Bias system
High voltage generator configuration
Temperature read-out
V
Grey-scale register and grey-scale level
Direct drive mode
Frame frequency calibration
Reset and initialization
LIMITING VALUES
HANDLING
DC CHARACTERISTICS
TIMING
APPLICATION INFORMATION
Programming example for the PCF8820
Examples of effects on the display
High voltage generator
Application for COG
Typical system configuration
External supply of V
BONDING PAD INFORMATION
DEVICE PROTECTION CIRCUITS
TRAY INFORMATION
DATA SHEET STATUS
DEFINITIONS
DISCLAIMERS
BARE DIE DISCLAIMER
PURCHASE OF PHILIPS I
2
2
LCD
C-bus interface
C-bus protocol
control register
LCDIN
Product specification
2
C COMPONENTS
PCF8820