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MAX6950
Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display Drivers
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Key Features
Applications/Uses
Parametric specs for Display Drivers
| LCD or LED | LED |
| Display Type | Common Cathode |
| Interface | Serial SPI 26Mbit |
| Digits or Char. | 5-Digit |
| Output Format | 7 segment + DP |
| Fonts | Hexadecimal |
| Segment Blinking | Yes |
| VSUPPLY (V) (min) | 2.7 |
| VSUPPLY (V) (max) | 5.5 |
| Package/Pins | QSOP/16 |
| Budgetary Price (See Notes) | 5.9 |
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Parameters
Parametric specs for Display Drivers
| LCD or LED | LED |
| Display Type | Common Cathode |
| Interface | Serial SPI 26Mbit |
| Digits or Char. | 5-Digit |
| Output Format | 7 segment + DP |
| Fonts | Hexadecimal |
| Segment Blinking | Yes |
| VSUPPLY (V) (min) | 2.7 |
| VSUPPLY (V) (max) | 5.5 |
| Package/Pins | QSOP/16 |
| Budgetary Price (See Notes) | 5.9 |
Key Features
- High-speed 26MHz SPI-, QSPI-, MICROWIRE-Compatible Serial Interface
- +2.7V to +5.5V Operation
- Individual LED Segment Control
- Segment Blinking Control that Can Be Synchronized Across Multiple Drivers
- Hexadecimal Decode/No-Decode Digit Selection
- Digital Brightness Control
- Display Blanked on Power-Up
- Drives Common-Cathode LED Digits
- Multiplex Clock Syncronizable to External Clock
- Slew-Rate Limited Segment Drivers for Low EMI
- 75µA Low-Power Shutdown (Data Retained)
- Small 16-Pin QSOP Package
Applications/Uses
- Bar Graphs and Matrix Displays
- Industrial Controllers and Instrumentation
- Medical Equipment
- Panel Meters
- Professional Audio Equipment
- Set-Top Boxes
- White Goods
Description
The MAX6950/MAX6951 are compact common-cathode display drivers that interface microprocessors to individual 7-segment numeric LED digits, bar graph, or discrete LEDs through an SPI™-, QSPI™-, MICROWIRE™-compatible serial interface. The supply voltage can be as low as 2.7V.
The MAX6950 drives up to five 7-segment digits or 40 discrete LEDs. The MAX6951 drives up to eight 7-segment digits or 64 discrete LEDs.
Included on-chip are hexadecimal character decoders (0-9, A-F), multiplex scan circuitry, segment and digit drivers, and a static RAM that stores each digit. The user may select hexadecimal decoding or no-decode for each digit to allow any mix of 7-segment digits, bar graph, or discrete LEDs to be driven. The segment current for the LEDs is set by an internal digital brightness control. The segment drivers are slew-rate limited to reduce EMI.
Individual digits may be addressed and updated without rewriting the entire display. The devices include a low-power shutdown mode, digital brightness control, a scan-limit register that allows the user to display from one to eight digits, segment blinking that can be synchronized across drivers, and a test mode that forces all LEDs on.
The MAX6950 drives up to five 7-segment digits or 40 discrete LEDs. The MAX6951 drives up to eight 7-segment digits or 64 discrete LEDs.
Included on-chip are hexadecimal character decoders (0-9, A-F), multiplex scan circuitry, segment and digit drivers, and a static RAM that stores each digit. The user may select hexadecimal decoding or no-decode for each digit to allow any mix of 7-segment digits, bar graph, or discrete LEDs to be driven. The segment current for the LEDs is set by an internal digital brightness control. The segment drivers are slew-rate limited to reduce EMI.
Individual digits may be addressed and updated without rewriting the entire display. The devices include a low-power shutdown mode, digital brightness control, a scan-limit register that allows the user to display from one to eight digits, segment blinking that can be synchronized across drivers, and a test mode that forces all LEDs on.
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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