The MAX6960–MAX6963 are compact cathode-row display drivers that interface microprocessors to 8 x 8 dot-matrix red, green, and yellow (R,G,Y) LED displays through a high-speed 4-wire serial interface. The MAX6960–MAX6963 drive two monocolor 8 x 8 matrix displays, or a single RGY 8 x 8 matrix display with no external components. The driver can also be used with external pass transistors to control red, green, blue (RGB) and other displays at higher currents and voltages. The MAX6960–MAX6963 feature open- and short-circuit LED detection, and provide both analog and digital tile segment current calibration to allow 8 x 8 displays from different batches to be compensated or color matched. A local 3-wire bus synchronizes multiple interconnected MAX6960–MAX6963s and automatically allocates memory map addresses to suit the user's display-panel architecture. The MAX6960–MAX6963s' 4-wire interface connects multiple drivers, with display memory mapping shared and allocated among the drivers. A single global write operation can send a command to all MAX6960s in a panel. The MAX6963 drives monocolor displays with two-step intensity control. The MAX6962 drives monocolor displays with two-step or four-step intensity control. The MAX6961 drives monocolor or RGY displays with two-step intensity control. The MAX6960AMH drives monocolor or RGY displays with two-step or four-step intensity control.
Feature
- 2.7V to 3.6V Operation
- High-Speed 20MHz Serial Interface
- Trimmed 40mA or 20mA Peak Segment Current
- Directly Drives Either Two Monocolor or One RGY Cathode-Row 8 x 8 Matrix Displays
- Analog Digit-by-Digit Segment Current Calibration
- Digital Digit-by-Digit Segment Current Calibration
- 256-Step Panel Intensity Control (All Drivers)
- Four Steps per Color Pixel-Level Intensity Control
- Open/Short LED Detection
- Burst White to Display Memory Planes
- Global Command Access All Devices
- Can Control RGB Panels or Higher Current/Voltage Panels with External Pass Transistors
- Multiple Display Data Planes Ease Animation
- Automatic Plane Switching from 63 Planes per Second to One Plane Every 63s, with Interrupt
- Slew-Rate-Limited Segment Drivers for Lower EMI
- Driver Switching Timing Can Be Spread Between Multiple Drivers to Flatten Power-Supply Peak Demand
- Low-Power Shutdown with Full Data Retention
- -40°C to +125°C Temperature Range
Applications
- Audio/Video Equipment
- Gaming Machines
- Industrial Controls
- Message Boards
