MAX719CSE

Product Overview

• Category: Integrated Circuit (IC)
• Use: LED Display Driver
• Characteristics: High-voltage, Serially Interfaced, 8-Digit LED Display Driver
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: MAX719CSE is a versatile LED display driver IC that can drive up to 8 digits of 7-segment displays or 64 individual LEDs. It is commonly used in applications where multiple LED displays need to be controlled efficiently.
• Packaging/Quantity: The MAX719CSE comes in a small outline integrated circuit package and is typically sold in reels or tubes.

Specifications

• Supply Voltage: 3V to 5.5V
• Maximum Segment Current: 40mA
• Maximum Digit Current: 320mA
• Serial Interface: SPI (Serial Peripheral Interface)
• Number of Digits: 8
• Number of Segments: 7
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX719CSE has a total of 28 pins. Here is the detailed pin configuration:

1. GND - Ground
2. DIN - Serial Data Input
3. SCLK - Serial Clock Input
4. LOAD - Load Input
5. BLANK - Blank Input
6. DIG0 - Digit 0 Output
7. DIG1 - Digit 1 Output
8. DIG2 - Digit 2 Output
9. DIG3 - Digit 3 Output
10. DIG4 - Digit 4 Output
11. DIG5 - Digit 5 Output
12. DIG6 - Digit 6 Output
13. DIG7 - Digit 7 Output
14. V+ - Positive Supply Voltage

Functional Features

• Serially interfaced for easy control and integration with microcontrollers or other digital devices.
• High-voltage output drivers capable of driving common-cathode LED displays directly.
• Internal multiplexing allows control of up to 8 digits or 64 individual LEDs.
• Built-in blanking and intensity control for dynamic display effects.
• Low power consumption in shutdown mode.

Advantages

• Versatile and flexible for various LED display applications.
• Easy to interface with microcontrollers using the serial interface.
• High-voltage output drivers eliminate the need for external level shifting circuitry.
• Internal multiplexing reduces the number of required pins and simplifies circuit design.
• Built-in features like blanking and intensity control enhance display capabilities.

Disadvantages

• Limited to driving common-cathode LED displays only.
• Requires an external power supply for the LED display.
• May require additional components for current limiting and voltage regulation.

Working Principles

The MAX719CSE operates by receiving serial data through the DIN pin, which is then shifted into internal registers using the SCLK input. The LOAD pin is used to latch the data from the registers onto the output drivers. The BLANK input can be used to turn off all the segments simultaneously, creating a blank display effect. The digit outputs (DIG0-DIG7) are used to drive the corresponding segments of the LED display.

Application Field Plans

The MAX719CSE is commonly used in various applications that require driving multiple LED displays efficiently. Some potential application fields include:

1. Digital clocks and timers
2. Scoreboards and counters
3. Industrial control panels
4. Instrumentation and measurement devices
5. Advertising displays
6. Gaming machines
7. Automotive dashboard displays

Alternative Models

Here are some alternative models that offer similar functionality to the MAX719CSE:

1. MAX7219CNG
2. TLC59282
3. HT16K33
4. MAX6951

These alternative models can be considered based on specific requirements and availability.

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