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Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display Drivers

製品の詳細

主な特長

アプリケーション/用途

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)
6.25
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パラメーター

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)
6.25

主な特長

  • 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

アプリケーション/用途

  • Bar Graphs and Matrix Displays
  • Industrial Controllers and Instrumentation
  • Medical Equipment
  • Panel Meters
  • Professional Audio Equipment
  • Set-Top Boxes
  • White Goods

説明

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.

簡易ブロック図

MAX6950, MAX6951: Typical Application Circuit MAX6950, MAX6951: Typical Application Circuit Zoom icon

サポートとトレーニング

技術質問への回答についてはナレッジベースで検索ください。

絞り込まれた検索

マキシムでは、お客様の技術的質問にお答えするため、アプリケーションエンジニアの専任チームも配置しています。 サポートセンター をご利用ください。