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MAX6950, MAX6951
Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display Drivers
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Status
Active: In Production.
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.
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Data Sheet
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An evaluation kit is available: MAX6951EVKIT
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
- Underwriters Laboratories (UL) Recognized
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Applications/Uses
- Bar Graphs and Matrix Displays
- Industrial Controllers and Instrumentation
- Medical Equipment
- Panel Meters
- Professional Audio Equipment
- Set-Top Boxes
- White Goods
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Key Specifications:
| Display Drivers |
| Part Number |
LCD or LED |
Digits or Char. |
Output Format |
Display Type |
Interface |
Fonts |
Segment Blinking |
VSUPPLY
(V) |
VSUPPLY
(V) |
Budgetary Price |
| min |
max |
See Notes |
| MAX6950 |
LED |
5-Digit |
7 segment + DP |
Common Cathode |
Serial SPI 26Mbit |
Hexadecimal |
Yes |
2.7 |
5.5 |
$4.50 @1k |
| MAX6951 |
8-Digit |
$4.73 @1k |
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See All Display Drivers (52)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Application Circuit
Application Notes
Product Guides
Reliability Reports
Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX6950CEE
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0239 (PDF)
Use pkgcode/variation: E16E-10*
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0°C to +70°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX6950CEE+
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0239 (PDF)
Use pkgcode/variation: E16E+10*
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0°C to +70°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX6950CEE+T
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0239 (PDF)
Use pkgcode/variation: E16E+10*
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0°C to +70°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX6950CEE-T
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Active |
QSOP;16 pin
Land Pattern: Not Available
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0°C to +70°C
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See data sheet
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| MAX6950EEE
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0239 (PDF)
Use pkgcode/variation: E16E-10*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX6950EEE+
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0239 (PDF)
Use pkgcode/variation: E16E+10*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX6950EEE+T
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0239 (PDF)
Use pkgcode/variation: E16E+10*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX6950EEE-T
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Active |
QSOP;16 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX6951CEE
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0239 (PDF)
Use pkgcode/variation: E16E-10*
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0°C to +70°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX6951CEE+
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0239 (PDF)
Use pkgcode/variation: E16E+10*
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0°C to +70°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX6951CEE+T
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0239 (PDF)
Use pkgcode/variation: E16E+10*
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0°C to +70°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX6951CEE-T
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0239 (PDF)
Use pkgcode/variation: E16E-10*
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0°C to +70°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX6951EEE
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0239 (PDF)
Use pkgcode/variation: E16E-10*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX6951EEE+
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0239 (PDF)
Use pkgcode/variation: E16E+10*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX6951EEE+T
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Active |
QSOP-EP;16 pin;30.9 mm²
Outline Drawing:21-0112 (PDF)
Land Pattern: 90-0239 (PDF)
Use pkgcode/variation: E16E+10*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX6951EEE-T
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Active |
QSOP;16 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Similar Products by Function
| MAX7219, MAX7221 |
Serially Interfaced, 8-Digit, LED Display Drivers |
| MAX6953 |
2-Wire Interfaced, 2.7V to 5.5V, 4-Digit 5 x 7 Matrix LED Display Driver |
| MAX6957 |
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander |
| MAX6952 |
4-Wire Interfaced, 2.7V to 5.5V, 4-Digit 5 x 7 Matrix LED Display Driver |
| MAX6954 |
4-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan |
| MAX6956 |
2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or 28-Port LED Display Driver and I/O Expander |
| MAX6958, MAX6959 |
2-Wire Interfaced, 3V to 5.5V, 4-Digit, 9-Segment LED Display Drivers with Keyscan |
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Similar Products by Application
Evaluation Kits
Products with Similar Part Numbers
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-2227
Rev 2;
2005-04-18
This page last modified: 2007-07-03
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