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ICM7228AIPI Datasheet(PDF) 1 Page - Intersil Corporation |
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ICM7228AIPI Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 17 page 9-17 August 1997 ICM7228 8-Digit, Microprocessor- Compatible, LED Display Decoder Driver Features • Improved 2nd Source to Maxim ICM7218 • Fast Write Access Time of 200ns • Multiple Microprocessor Compatible Versions • Hexadecimal, Code B and No Decode Modes • Individual Segment Control with “No Decode” Feature • Digit and Segment Drivers On-Chip • Non-Overlapping Digits Drive • Common Anode and Common Cathode LED Versions • Low Power CMOS Architecture • Single 5V Supply Applications • Instrumentation • Test Equipment • Hand Held Instruments • Bargraph Displays • Numeric and Non-Numeric Panel Displays • High and Low Temperature Environments where LCD Display Integrity is Compromised Description The Intersil ICM7228 display driver interfaces microproces- sors to an 8-digit, 7-segment, numeric LED display. Included on chip are two types of 7-segment decoder, multiplex scan circuitry, LED display segment drivers, LED display digit drivers and an 8-byte static memory as display RAM. Data can be written to the ICM7228A and ICM7228B’s display RAM in sequential 8-digit update or in single-digit update for- mat. Data is written to the ICM7228C and ICM7228D display RAM in parallel random access format. The ICM7228A and ICM7228C drive common anode displays. The ICM7228B and ICM7228D drive common cathode displays. All versions can display the RAM data as either Hexadecimal or Code B format. The ICM7228A and ICM7228B incorporate a No Decode mode allowing each bit of each digit's RAM word to drive individual display segments resulting in independent control of all display segments. As a result, bargraph and other irregular display segments and formats can be driven directly by this chip. The Intersil ICM7228 is an alternative to both the Maxim ICM7218 and the Intersil ICM7218 display drivers. Notice that the ICM7228A/B has an additional single digit access mode. This could make the Intersil ICM7218A/B software incompatible with ICM7228A/B operation. Ordering Information PART NUMBER DATA ENTRY PROTOCOL DISPLAY TYPE TEMP. RANGE (oC) PACKAGE PKG. NO. ICM7228AIPI Sequential Common Anode -40 to 85 28 Ld PDIP E28.6 ICM7228BIPI Sequential Common Cathode -40 to 85 28 Ld PDIP E28.6 ICM7228CIPI Random Common Anode -40 to 85 28 Ld PDIP E28.6 ICM7228DIPI Random Common Cathode -40 to 85 28 Ld PDIP E28.6 ICM7228AIJI Sequential Common Anode -40 to 85 28 Ld CERDIP F28.6 ICM7228BIJI Sequential Common Cathode -40 to 85 28 Ld CERDIP F28.6 ICM7228CIJI Random Common Anode -40 to 85 28 Ld CERDIP F28.6 ICM7228DIJI Random Common Cathode -40 to 85 28 Ld CERDIP F28.6 ICM7228AIBI Sequential Common Anode -40 to 85 28 Ld SOIC M28.3 ICM7228BIBI Sequential Common Cathode -40 to 85 28 Ld SOlC M28.3 ICM7228CIBI Random Common Anode -40 to 85 28 Ld SOlC M28.3 ICM7228DIBI Random Common Cathode -40 to 85 28 Ld SOlC M28.3 ICM7228AMJI883B Sequential Common Anode -55 to 125 28 Ld CERDIP F28.6 ICM7228BMJI883B Sequential Common Cathode -55 to 125 28 Ld CERDIP F28.6 ICM7228CMJI883B Random Common Anode -55 to 125 28 Ld CERDIP F28.6 ICM7228DMJI883B Random Common Cathode -55 to 125 28 Ld CERDIP F28.6 File Number 3160.1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999 |
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