The MAX6954 is a compact display driver that interfaces microprocessors to a mix of 7-segment, 14-segment, 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 digits 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 denounces matrix of up to 32 switches.

Features:

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

Supplier link: https://www.mouser.com/datasheet/2/256/maxim integrated products_max6954-1179411.pdf