參數(shù)資料
型號(hào)： UPD7225
廠商： NEC Corp.
英文描述： PROGRAMMABLE LCD CONTROLLER/DRIVER
中文描述： 可編程LCD控制器/驅(qū)動(dòng)
文件頁(yè)數(shù)： 1/52頁(yè)
文件大?。?/td> 289K
代理商： UPD7225
MOS INTEGRATED CIRCUIT
μ
PD7225
PROGRAMMABLE LCD CONTROLLER/DRIVER
DATA SHEET
Document No. S14308EJ6V0DS00 (6th edition)
(O.D. No. IC-1555)
Date Published June 1999 N CP (K)
Printed in Japan
1986, 1999
The mark
shows major revised points.
The
μ
PD7225 is a software-programmable LCD (Liquid Crystal Display) controller/driver. The
μ
PD7225 can be
serially interfaced with the CPU in a microcomputer and can directly drive 2, 3, or 4-time division LCD. The
μ
PD7225
contains a segment decoder which can generate specific segment patterns. In addition, the
μ
PD7225 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
μ
PD7225G00
52-pin plastic QFP (14
×
14 mm)
μ
PD7225G01
52-pin plastic QFP (straight) ( 14 mm)
μ
PD7225GB-3B7
56-pin plastic QFP (10
×
10 mm)
μ
PD7225GC-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.
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