UPD7225 Datasheet, PDF (1/52 Pages) NEC – PROGRAMMABLE LCD CONTROLLER/DRIVER

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
µPD7225G00
µPD7225G01
µPD7225GB-3B7
µPD7225GC-AB6
Package
52-pin plastic QFP (14 × 14 mm)
52-pin plastic QFP (straight) ( 14 mm)
56-pin plastic QFP (10 × 10 mm)
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. S14308EJ6V0DS00 (6th edition)
(O.D. No. IC-1555)
The mark shows major revised points.
Date Published June 1999 N CP (K)
Printed in Japan
©
1986, 1999