DATA SHEET
MOS INTEGRATED CIRCUIT
µ
PD16434
1/8, 1/16 DUTY LCD CONTROLLER/DRIVER
DESCRIPTION
µ
PD16434 is LCD controller/driver containing the interfacing features for a dot-matrix mode 8-, 16-time division
LCD and a microprocessor.
µ
PD16434 contains a 5- by 7-dot matrix character generator corresponding to
ASCII/JIS. Therefore, user original patterns can be easily displayed.
FEATURES
•
DOT matrix LCD controller/driver
•
8- or 16-time division drive possible with a single chip
8-time-division
:
400 (50 by 8) dots
16-time-division
:
672 (42 by 16) dots
•
8- or 16-time division drive possible with no chip
8-time-division
:
n
×
400 (50 by 8) dots
16-time-division
:
n
×
800 (50 by 16) dots
•
Display data storage RAM
:
20
×
50
×
8 bits
•
Programmer specified dot (graphic) display
•
Capable of alphanumeric and symbolic displays thorough built-in ROM (5 by 7 dots)
160 characters
•
Parallel data input/output (Switch able between 4 and 8 bits)
•
Cursor manipulation command
•
Upgraded version of
µ
PD7228,
µ
PD7228A,
µ
PD7229,
µ
PD7229A
ORDERING INFORMATION
Part Number
Package
80-PIN PLASTIC QFP (14
×
20)
80-PIN PLASTIC QFP (14
×
20), Standard ROM code
80-PIN PLASTIC QFP (14
×
20)
Note
Note
µ
PD16434G-xxx-12
µ
PD16434G-001-12
5
5
µ
PD16434GF-xxx-3B9
µ
PD16434GF-001-3B9
80-PIN PLASTIC QFP (14
×
20), Standard ROM code
Note
This package is only available in European market.
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. S10299EJ4V0DS00 (4th edition)
Date Published April 2000 NS CP(K)
Printed in Japan
The mark
5
shows major revised points.
1994, 1999
µ
PD16434
TABLE OF CONTENTS
1. PIN FUNCTIONS ……………………………………………………………………………………………… 6
1.1 D0 to D3 (Data Bus) … 3-state input/output ……………………………………………….…………………..... 6
1.2 SI (Serial Data In) … Also serves as D0 input ……………………………………………………….………..… 6
1.3 SO (Serial Data Out) … Also serves as D3 output ………………………………….……………….…………. 6
1.4 P, /S (Parallel/Serial Select) … Also serves as D1 input ……………………………………………………… 6
1.5 CAE (Chip Address Enable) … Also serves as D2 input ……………………………………………………… 6
1.6 CA0, CA1 (Chip Address) … Input ………………………………………………………………………………… 6
1.7 /CS (Chip Select) … Input …………………………………………………………………………………………... 7
1.8 /STB, /SCK (Strobe/Serial Clock) … Input .……………………………………………………….……………… 7
1.9 C, /D (Command/Data) … Input ………………………………………………………………….………………… 7
1.10 /BUSY (Busy) … 3-state output …………………………………………………………………………………..
1.12 C0 to C41 (Column) … Output …………………………………………..………………………………………..
7
9
1.11 SYNC (Synchronous) … 3-state input/output …………………………………………………………………. 8
1.13 R8/C49 to R15/C42 (Row/Column) … Output ..…………………………………………...……………………. 9
1.14 R0/R8 to R7/R15 (Row) … Output .………………………….……………………………………………………. 9
1.15 V
LC1
to V
LC5
(LCD Drive Voltage Supply) … Input ……………….…………………………….……………… 9
1.16 CLOCK (Clock) … Input ……………………………………………………………………………………………
9
1.17 RESET (Reset) … Input ………………………………………………………………….………………………… 9
1.18 V
DD
……………………………………………………………………………………………………….….……….… 9
1.19 V
SS
…………………………………………………………………………………………………………..……….… 9
2. INTERNAL BLOCK FUNCTIONS …………………………………………………………………………..
10
2.1 Serial/Parallel Interface ……………………………………………………………………………………………... 10
2.2 Command Decoder ………………………………………………………………………………………………….. 11
2.3 Character Generator …………………………………………………………………………………………………
11
2.4 Data Pointer …………………………………………………………………………………………………………… 14
2.5 Data Memory ………………………………………………………………………………………………………….. 15
2.6 LCD Voltage Control Circuit ………………………………………………………………………………………..
19
2.7 LCD Timing Control Circuit ………………………………………………………………………………………… 19
2.8 Row/Column Driver ………………………………………………………………………………………………….. 19
3. DATA INPUT/OUTPUT OPERATION ……………………………………………………………………… 21
4. SELECTING
µ
PD16434 INTERFACE FUNCTION WITH CPU ………………………………………… 27
4.1 Functions of Shared Pins …………………………………………………………………………………………… 27
4.2 Chip Address Selection Function ………………………………………………………………….……………… 28
5. LCD DRIVE REFERENCE VOLTAGE SUPPLY ………………………………………………………….. 29
5.1 Supplying LCD Drive Reference Voltage by Resistor Network ……………………………………………… 29
5.2 Reduction in Current Consumption by RESET Signal ………………………………………………………… 30
6. DISPLAY EXAMPLES ……………………………………………………………………………………….. 31
7. STANDBY MODE …………………………………………………………………………………………….. 35
7.1 Clearing Standby Mode ……………………………………………………………………………………………..
35
4
Data Sheet S10299EJ4V0DS00
µ
PD16434
7.2 Stopping Clock Supply and Retaining Data at Low Voltage in Standby Mode ………………………. 36
8. RESET OPERATION …………………………………………………………………………………….. 38
9. COMMANDS ……………………………………………………………………………………………… 40
9.1 LCD Display Mode Setting Commands ……………………………………………………………………...
9.2 Data Pointer Load Command ………………………………………………………………………………….
40
42
9.3 Data Processing Mode Setting Commands ………………………………………………………………… 42
9.4 Memory Bit Manipulation Commands ……………………………………………………………………….. 45
9.5 Standby Operation Setting Command ………………………………………………………………………. 47
10. SYSTEM CONFIGURATION EXAMPLE …………………………………………………………….. 48
11. ELECTRICAL SPECIFICATION ………………………………………………………………………. 49
12. PACKAGE DRAWINGS ………………………………………………………………………………... 60
13. RECOMMENDED SOLDERING CONDITIONS ……………………………………………………..
62
Data Sheet S10299EJ4V0DS00
5
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