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Led Driver, 16 Outputs, Common Cathode, 4V-5.5V in, 10MHz switch, 4.5V/320mA out, DIP-24


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MAX7221CNG+.   Datasheet
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LED Driver, 4V to 5.5V input, DIP-24

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Technical Documents (2)

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Product Overview

The MAX7221CNG+ is a compact, serial input/output common-cathode Display Driver that interface microprocessors (µPs) to 7-segment numeric LED displays of up to 8 digits. 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. It 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. Individual digits may be addressed and updated without rewriting the entire display. It also allow the user to select code-B decoding or no-decode for each digit.
  • 10MHz Serial interface
  • Individual LED segment control
  • Decode/no-decode digit selection
  • 150µA Low-power shutdown (data retained)
  • Digital and analogue brightness control
  • Display blanked on power-up
  • Drive common-cathode LED display
  • Slew-rate limited segment drivers for lower EMI
  • SPI, QSPI and MICROWIRE serial interface


Industrial, Metering, Portable Devices

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