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ICM7231BFIJL Datasheet

  • ICM7231BFIJL

  • Numeric/Alphanumeric Triplexed LCD Display Drivers

  • 106.40KB

  • 16頁

  • INTERSIL   INTERSIL

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ICM7231, ICM7232
August 1997
Numeric/Alphanumeric Triplexed
LCD Display Drivers
Description
The ICM7231 and ICM7232 family of integrated circuits are
designed to generate the voltage levels and switching wave-
forms required to drive triplexed liquid-crystal displays.
These chips also include input buffer and digit address
decoding circuitry allowing six bits of input data to be
decoded into 64 independent combinations of the output
segments of the selected digit.
The family is designed to interface to modern high-
performance microprocessors and microcomputers and
ease system requirements for ROM space and CPU time
needed to service a display.
Features
鈥?ICM7231 Drives 8 Digits of 7 Segments with Two
Independent Annunciators Per Digit Address and Data
Input in Parallel Format
鈥?ICM7232 Drives 10 Digits of 7 Segments with Two
Independent Annunciators Per Digit Address and Data
Input in Serial Format
鈥?All Signals Required to Drive Rows and Columns of
Triplexed LCD Display are Provided
鈥?Display Voltage Independent of Power Supply
鈥?On-Chip Oscillator Provides All Display Timing
鈥?Total Power Consumption Typically 200碌W, Maximum
500碌W at 5V
鈥?Low-Power Shutdown Mode Retains Data With 5碌W
Typical Power Consumption at 5V, 1碌W at 2V
鈥?Direct Interface to High-Speed Microprocessors
Ordering Information
PART NUMBER
ICM7231BFIJL
ICM7231BFIPL
ICM7232BFIPL
ICM7232CRIPL
NOTE:
All versions intended for triplexed LCD displays.
TEMP. RANGE (
o
C)
-25 to 85
-25 to 85
-25 to 85
-25 to 85
PACKAGE
40 Ld CERDIP
40 Ld PDIP
40 Ld PDIP
40 Ld PDIP
NUMBER OF DIGITS
8 Digit
8 Digit
10 Digit
10 Digit
INPUT FORMAT
Parallel
Parallel
Serial
Serial
PKG. NO.
F40.6
E40.6
E40.6
E40.6
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
漏
Intersil Corporation 1999
File Number
3161.1
9-19

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