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MAX7221 - Serially Interfaced / 8-Digit LED Display Drivers

This page provides the datasheet information for the MAX7221, a member of the MAX Serially Interfaced / 8-Digit LED Display Drivers family.

Datasheet Summary

Description

The MAX7219/MAX7221 are compact, serial input/ output common-cathode display drivers that interface microprocessors (μPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs.

Features

  • 10MHz Serial Interface.
  • Individual LED Segment Control.
  • Decode/No-Decode Digit Selection.
  • 150μA Low-Power Shutdown (Data Retained).
  • Digital and Analog Brightness Control.
  • Display Blanked on Power-Up.
  • Drive Common-Cathode LED Display.
  • Slew-Rate Limited Segment Drivers for Lower EMI (MAX7221).
  • SPI, QSPI,.

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Datasheet preview – MAX7221

Datasheet Details

Part number MAX7221
Manufacturer Maxim
File Size 1.32 MB
Description Serially Interfaced / 8-Digit LED Display Drivers
Datasheet download datasheet MAX7221 Datasheet
Additional preview pages of the MAX7221 datasheet.

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Full PDF Text Transcription

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Click here to ask about the production status of specific part numbers. MAX7219/MAX7221 Serially Interfaced, 8-Digit LED Display Drivers General Description The MAX7219/MAX7221 are compact, serial input/ output common-cathode display drivers that interface microprocessors (μPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. Included on-chip are a BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8x8 static RAM that stores each digit. Only one external resistor is required to set the segment current for all LEDs. The MAX7221 is compatible with SPI™, QSPI™, and MICROWIRE™, and has slew-rate-limited segment drivers to reduce EMI. A convenient 4-wire serial interface connects to all common μPs.
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