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Series Information for MAX6954AAX+ - Maxim Integrated


  • feature
    10u00b5A (typ) Low-Power Shutdown (Data Retained)
  • feature
    16-Step Digit-by-Digit Digital Brightness Control
  • feature
    2.7V to 5.5V Operation
  • feature
    36-Pin SSOP and 40-Pin DIP and TQFN Packages
  • feature
    Automatic Blinking Control for each Segment
  • feature
    Automotive Temperature Range Standard
  • feature
    Built-In ASCII 104-Character Font for 14-Segment and 16-Segment Digits and Hexadecimal Font for 7-Segment Digits
  • feature
    Display Blanked on Power-Up
  • feature
    Drives Common-Cathode Monocolor and Bicolor LED Displays
  • feature
    Drives Up to 16 Digits 7-Segment, 8 Digits 14-Segment, 8 Digits 16-Segment, 128 Discrete LEDs, or a Combination of Digit Types
  • feature
    Five GPIO Port Pins Can Be Configured as KeySwitch Reader to Scan and Debounce Up to 32 Switches with n-Key Rollover
  • feature
    High-Speed 26MHz SPI/QSPI/MICROWIREu00aeCompatible Serial Interface
  • feature
    IRQ Output when a Key Input Is Debounced
  • feature
    Slew-Rate Limited Segment Drivers for Lower EMI


The MAX6954 is a compact display driver that inter- faces microprocessors to a mix of 7-segment, 14-seg- ment, and 16-segment LED displays through an SPI-/ QSPI™-compatible 4-wire serial interface. The serial interface may be cascaded through multiple devices. The MAX6954 drives up to 16 digits 7-segment, 8 dig- its 14-segment, 8 digits 16-segment, or 128 discrete LEDs, while functioning from a supply voltage as low as 2.7V. The driver includes five I/O expander (or GPIO) lines, some or all of which may be configured as a key-switch reader, which automatically scans and debounces a matrix of up to 32 switches. Included on chip are full 14- and 16-segment ASCII 104-character fonts, a hexadecimal font for 7-segment displays, multiplex scan circuitry, anode and cathode driv- ers, and static RAM that stores each digit. The maximum segment current for the display digits is set using a single external resistor. Digit intensity can be independently adjusted using the 16-step internal digital brightness con- trol. The MAX6954 includes a low-power shutdown mode, a scan-limit register that allows the user to display from 1 to 16 digits, segment blinking (synchronized across mul- tiple drivers, if desired), and a test mode, which forces all LEDs on. The LED drivers are slew-rate limited to reduce EMI. For a 2-wire interfaced version, refer to the MAX6955 data sheet. An evaluation kit (EV kit) for the MAX6955 is available.


Device Topology:
Input Voltage Min:
Input Voltage Max:
Output Voltage Max:
Output Current Max:
Switching Frequency:
No. of Outputs:
IC Mounting:
Driver Case Style:
No. of Pins:
Operating Temperature Min:
Operating Temperature Max:
Product Range:
Automotive Qualification Standard:
RoHS Phthalates Compliant:
To Be Advised
MSL 1 - Unlimited
No SVHC (15-Jan-2018)
Base Number:
Dimming Control Type:
Input Voltage:
2.7V to 5.5V
LED Driver Application:
Automotive Display
Operating Temperature Range:
-40°C to +125°C
Output Current:

Alternate Descriptions

Avnet America

LED DRVR 128Segment 3.3V/5V 36-Pin SSOP

Avnet America product

Avnet Europe

LED DRVR 128Segment 3.3V/5V 36-Pin SSOP

Avnet Europe product

Avnet Asia

LED DRVR 128Segment 3.3V/5V 36-Pin SSOP

Avnet Asia product

Future Electronics

MAX6954 Series 5.5 V 22 mA 4-Wire Interfaced LED Display Driver - SSOP-36