MAX6950
PRODUCTIONSerially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display Drivers
- Part Models
- 4
- 1ku List Price
- Starting From $7.36
Part Details
- 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
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.
Applications
- Bar Graphs and Matrix Displays
- Industrial Controllers and Instrumentation
- Medical Equipment
- Panel Meters
- Professional Audio Equipment
- Set-Top Boxes
- White Goods
Documentation
Data Sheet 1
Reliability Data 1
Application Note 2
Design Note 1
Technical Articles 6
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX6950CEE+ | 16-QSOP-150_MIL | ||
| MAX6950CEE+T | 16-QSOP-150_MIL | ||
| MAX6950EEE+ | 16-QSOP-150_MIL | ||
| MAX6950EEE+T | 16-QSOP-150_MIL |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Display Driver Electronics 8 | ||
| MAX6952 | PRODUCTION | 4-Wire Interfaced, 2.7V to 5.5V, 4-Digit 5 x 7 Matrix LED Display Driver |
| MAX6954 | PRODUCTION | 4-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan |
| MAX6956 | PRODUCTION | 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port LED Display Driver and I/O Expander |
| MAX6957 | PRODUCTION | 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander |
| MAX6958 | PRODUCTION | 2-Wire Interfaced, 3V to 5.5V, 4-Digit, 9-Segment LED Display Drivers with Keyscan |
| MAX6959 | PRODUCTION | 2-Wire Interfaced, 3V to 5.5V, 4-Digit, 9-Segment LED Display Drivers with Keyscan |
| MAX7219 | PRODUCTION | Serially Interfaced, 8-Digit, LED Display Drivers |
| MAX7221 | PRODUCTION | Serially Interfaced, 8-Digit, LED Display Drivers |
| Product 1 | ||
| MAX6953 | 2-Wire Interfaced, 2.7V to 5.5V, 4-Digit 5 x 7 Matrix LED Display Driver | |
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