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  4. MAX7233


Features and Benefits

  • MAX7231 drives 8 digits/7 segments; parallel input format; 2 annunciators per digit
  • MAX7232 drives 10 digits/7 segments; serial input format; 2 annunciators per digit
  • MAX7233 drives 4 alphanumeric characters/18 segments; parallel input format
  • MAX7234 drives 5 alphanumeric characters/18 segments; serial input format
  • On-chip oscillator
  • Direct interface to microprocessors
  • Monolithic, Low Power CMOS Design

Product Details

The MAX7231/32/33/34 family of integrated circuits is a complete line of triplexed liquid crystal display (LCD) drivers. These devices interface microprocessors (or digital systems) to multiplexed numeric and alphanumeric displays. The MAX7231 drives 8 digits and accepts data in a parallel format. The MAX7232 drives 10 digits and accepts data in a serial format. Both devices feature two independent annunciators per digit. The MAX7233 drives 4 alphanumeric 18 segment characters. The MAX7234 drives 5 alphanumeric 18 segment characters.

Each device includes an input buffer, digit address decoding circuitry and mask-programmed ROM allowing six bits of input data to be decoded into 64 independent combinations of the output segments of each digit. This offloads the microprocessor system, reducing the ROM space and CPU time needed to service a display.


These low-power LCD drivers are ideal for microprocessor-based portable applications where power consumption is a primary concern. Many applications also take advantage of the annunciator drive capability, which allows unlimited variations of display layout.

  • Portable instrumentation
  • Industrial equipment
  • Telecommunications
  • Medical equipment
  • Panel Meters
  • Machine control

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Product Recommendations

MAX7233 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX7233BFIQH+D Material Declaration Reliability Data Plastic Leaded Chip Carrier
MAX7233BFIQH+TD Material Declaration Reliability Data Plastic Leaded Chip Carrier
Wafer Fabrication Data

Sample & Buy

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Buy Now Pricing

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List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

Please see the latest communication from our CCO regarding lead times.



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