AS1107PL

Product Overview

• Category: Integrated Circuit (IC)
• Use: LED Display Driver
• Characteristics:
  • Compact and versatile driver for LED displays
  • Supports multiplexing of up to 8 digits
  • Low power consumption
  • Serial interface for easy control
• Package: PLCC-20
• Essence: AS1107PL is a highly efficient LED display driver designed for various applications.
• Packaging/Quantity: Available in tape and reel packaging, with 250 units per reel.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Maximum Display Digits: 8
• Maximum Segment Current: 25mA
• Serial Interface: SPI-compatible
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VDD: Power supply voltage
2. GND: Ground
3. DIN: Serial data input
4. CLK: Serial clock input
5. CS: Chip select input
6. DOUT: Serial data output
7. BLANK: Blank display control
8. STB: Strobe control
9. SEG1: Segment output 1
10. SEG2: Segment output 2
11. SEG3: Segment output 3
12. SEG4: Segment output 4
13. SEG5: Segment output 5
14. SEG6: Segment output 6
15. SEG7: Segment output 7
16. SEG8: Segment output 8
17. DIG1: Digit output 1
18. DIG2: Digit output 2
19. DIG3: Digit output 3
20. DIG4: Digit output 4

Functional Features

• Multiplexing: AS1107PL supports multiplexing of up to 8 digits, allowing efficient control of LED displays.
• Low Power Consumption: The IC is designed to minimize power consumption, making it suitable for battery-powered devices.
• Serial Interface: The SPI-compatible serial interface simplifies the control and communication with the driver.
• Blank Display Control: The BLANK pin enables the user to blank the display when necessary.
• Strobe Control: The STB pin allows synchronization with external timing signals.

Advantages and Disadvantages

Advantages: - Compact size and versatile functionality - Low power consumption - Easy control through the serial interface - Supports multiplexing of up to 8 digits

Disadvantages: - Limited maximum segment current (25mA) - Requires an external microcontroller or controller for operation

Working Principles

AS1107PL operates by receiving data through the serial interface (DIN) and clock input (CLK). The received data is then processed and displayed on the connected LED segments. The driver supports multiplexing, allowing multiple digits to be controlled using fewer pins. The BLANK pin can be used to blank the display, while the STB pin enables synchronization with external timing signals.

Detailed Application Field Plans

AS1107PL finds applications in various fields, including: 1. Consumer Electronics: LED displays in calculators, digital clocks, and small appliances. 2. Automotive: Dashboard displays, instrument clusters, and interior lighting. 3. Industrial Equipment: Control panels, measurement devices, and signage. 4. Medical Devices: Patient monitors, diagnostic equipment, and medical instruments. 5. Communication Systems: LED indicators, status displays, and information boards.

Detailed and Complete Alternative Models

1. AS1106PL: Similar to AS1107PL but supports up to 6 digits instead of 8.
2. AS1117PL: Higher current version of AS1107PL, supporting up to 50mA segment current.
3. MAX7219: LED display driver with additional features like cascading and brightness control.

(Note: The above list is not exhaustive and other alternative models may exist.)

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