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Updated at 17/06/2025 10:30:15(UTC+8)
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Description
- General Description
- 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™- or 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 Key Switch 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
- Applications
- Set-Top Boxes
- Automotive
- Panel Meters
- Bar Graph Displays
- White Goods
- Audio/Video Equipment
MAX6954AAX Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Surface Mount |
| Number of Pins | 36 Pin |
| Case/Package | BSOP-36 |
| Supply Voltage (DC) | 5.50V (max) |
| Number of Outputs | 19 Output |
| Input Voltage (DC) | 2.70V ~ 5.50V |
| Output Current | 935 mA |
| Supply Current | 22 mA |
| Power Dissipation | 941 mW |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | 40 ℃ |
| Supply Voltage | 2.7V ~ 5.5V |
| Show | |
| Size-Length | 15.55 mm |
| Size-Width | 7.6 mm |
| Size-Height | 2.36 mm |
| Operating Temperature | -40℃ ~ 125℃ |
| Product Lifecycle Status | Active |
| Packaging | Tube |
| RoHS | Non-Compliant |
| Lead-Free Status | Contains Lead |
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- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
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