MAX6954APL

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 debounces a 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 StandardApplications● Set-Top Boxes● Panel Meters● White Goods● Bar Graph Displays● Audio/Video Equipment