DATA SHEET
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD7225
PROGRAMMABLE LCD CONTROLLER/DRIVER
The µPD7225 is a software-programmable LCD (Liquid Crystal Display) controller/driver. The µPD7225 can be
serially interfaced with the CPU in a microcomputer and can directly drive 2, 3, or 4-time division LCD. The µPD7225
contains a segment decoder which can generate specific segment patterns. In addition, the µPD7225 can be used to
control on/off (blinking) operation of a display.
FEATURES
• Can directly drive LCD
• Programmable time-division multiplexing
•
Static drive
•
Divide-by-2, 3, or -4 time division multiplexing
• Number of digits displayed
•
7-segment
Divide-by-4
time division ...............16 digits
Divide-by-3
time division ...............10 2/3 digits
Divide-by-2
time division ...............8 digits
Static .................................................4 digits
•
14-segment
Divide-by-4
time division ...............8 digits
• Bias method
Static, 1/2, 1/3
• Segment decoder output
•
7-segment : Numeric characters 0 to 9, six symbols
•
14-segment : 36 alphanumeric characters, 13 symbols
• Blinking operation
• Multi-chip configuration possible
• 8-bit serials interface
75X series and 78K series compatible
• CMOS
• Single power supply
ORDERING INFORMATION
Part Number
Package
µPD7225G00
52-pin plastic QFP (14 × 14 mm)
µPD7225G01
52-pin plastic QFP (straight) ( 14 × 14 mm)
µPD7225GB-3B7
56-pin plastic QFP (10 × 10 mm)
µPD7225GC-AB6
52-pin plastic QFP (14 × 14 mm)
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. S14308EJ6V1DS00 (6th edition)
Date Published May 2002 NS CP (K)
Printed in Japan
The mark
shows major revised points.
©
1986, 1999
