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Número de pieza | UPD16432B | |
Descripción | 1/8/ 1/15 DUTY LCD CONTROLLER/DRIVER | |
Fabricantes | NEC | |
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No Preview Available ! DATA SHEET
MOS INTEGRATED CIRCUIT
µPD16432B
1/8, 1/15 DUTY LCD CONTROLLER/DRIVER
DESCRIPTION
The µPD16432B is a controller/driver with 1/8 and 1/15 duty dot matrix LCD display capability. It has 60 segment
outputs, 10 common outputs, and 5 dual segment/common outputs, giving a maximum display capability of 12
columns × 2 lines (at 1/15 duty).
LED drive outputs, key scanning key source outputs, and key data inputs are also provided, making it ideal for use
in a car stereo front panel, etc.
FEATURES
• Dot matrix LCD controller/driver
• Pictograph display segment drive capability (max. 64)
• LCD driver unit power supply VLCD independently settable (Max. 10 V)
• On-chip key scan circuit (8 × 4 matrix)
• Alphanumeric character and symbol display capability provided by on-chip ROM (5 × 7 dots)
240 characters + 16 user-defined characters
• Display contents
1/8 duty: 13 columns × 1 line, 64 pictograph displays, 4 LEDs
1/15 duty: 12 columns × 2 lines, 60 pictograph displays, 4 LEDs
• Serial data input/output (SCK, STB, DATA)
• On-chip oscillator
• Reduced power consumption possible using standby mode
ORDERING INFORMATION
Part Number
µPD16432BGC-001-9EU
Package
100-pin plastic QFP (0.5 pitch, 14 × 14), Standard ROM code
Document No. S11092EJ5V0DS00 (5th edition)
Date Published April 1998 N CP(K)
Printed in Japan
© 1998
1 page µPD16432B
LCD DISPLAY
In the µPD16432B LCD display, a 5 × 7-segment display and pictograph display segments can be driven. The
pictograph display segment common output is allocated to COM0, and up to 64 can be driven.
(1) Example of 1/8 duty connections
SEG 1 2 3 4 5
6 7 8 9 10
61 62 63 64 65
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM0
64 Pictograph Segments
(2) Example of 1/15 duty connections
SEG 1 2 3 4 5 6 7 8 9 10
56 57 58 59 60
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM0
60 Pictograph Segments
5
5 Page µPD16432B
COMMANDS
Commands set the display mode and status.
The first byte after a rise edge on the STB pin is regarded as a command.
If STB is driven low during command/data transfer, serial communication is initialized and the command/data being
transferred is invalidated. (However, a command or data that has already been transferred is valid.)
(1) Display Setting Command
This command initializes the µPD16432BNote, and sets the duty, number of segments, number of commons, master/
slave operation, and the drive voltage supply method.
The state set when this command is executed is: LCD off, LED on, key scanning stopped. To restart the display,
it is necessary to execute “status command” normal operation. However, nothing is done if the same mode is
selected.
MSB
LSB
0 0 × × × b2 b1 b0
× : Don’t Care
After powering on
×××0 0 0
Duty setting
0: 1/8 duty (SEG61/COM14 to SEG65/COM10 → segment outputs)
1: 1/15 duty (SEG61/COM14 to SEG65/COM10 → common outputs)
Master/slave setting
0: Master
1: Slave
Drive voltage supply method selection
0: External
1: Internal
Note When multiple chips are used, only the chip that sent the command is enabled. If initialization is
performed during display, the display may be affected (especially when multiple chips are used).
11
11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet UPD16432B.PDF ] |
Número de pieza | Descripción | Fabricantes |
UPD16432B | 1/8/ 1/15 DUTY LCD CONTROLLER/DRIVER | NEC |
UPD16432BGC-001-9EU | 1/8/ 1/15 DUTY LCD CONTROLLER/DRIVER | NEC |
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