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UPD7225GB-3B7 Datasheet

  • UPD7225GB-3B7

  • PROGRAMMABLE LCD CONTROLLER/DRIVER

  • 52頁

  • NEC   NEC

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DATA SHEET
MOS INTEGRATED CIRCUIT
碌
PD7225
PROGRAMMABLE LCD CONTROLLER/DRIVER
The
碌
PD7225 is a software-programmable LCD (Liquid Crystal Display) controller/driver. The
碌
PD7225 can be
serially interfaced with the CPU in a microcomputer and can directly drive 2, 3, or 4-time division LCD. The
碌
PD7225
contains a segment decoder which can generate specific segment patterns. In addition, the
碌
PD7225 can be used to
control on/off (blinking) operation of a display.
FEATURES
鈥?Can directly drive LCD
鈥?Programmable time-division multiplexing
鈥?/div>
鈥?/div>
Static drive
Divide-by-2, 3, or -4 time division multiplexing
7-segment
Divide-by-4
Divide-by-3
Divide-by-2
time division ............... 16 digits
time division ............... 10 2/3 digits
time division ............... 8 digits
鈥?Number of digits displayed
鈥?/div>
Static................................................. 4 digits
鈥?/div>
14-segment
Divide-by-4
time division ............... 8 digits
鈥?Bias method
Static, 1/2, 1/3
鈥?Segment decoder output
鈥?/div>
鈥?/div>
7-segment : Numeric characters 0 to 9, six symbols
14-segment : 36 alphanumeric characters, 13 symbols
鈥?Blinking operation
鈥?Multi-chip configuration possible
鈥?8-bit serials interface
75X series and 78K series compatible
鈥?CMOS
鈥?Single power supply
ORDERING INFORMATION
Part Number
Package
52-pin plastic QFP (14
脳
14 mm)
52-pin plastic QFP (straight) (
56-pin plastic QFP (10
脳
10 mm)
52-pin plastic QFP (14
脳
14 mm)
14 mm)
碌
PD7225G00
碌
PD7225G01
碌
PD7225GB-3B7
碌
PD7225GC-AB6
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)
Date Published June 1999 N CP (K)
Printed in Japan
The mark
shows major revised points.
漏
1986, 1999

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