Description:
The HD7279A-WP is a versatile serial interface, 8-digit, common-anode LED driver IC. It simplifies driving multiple LEDs by providing a serial interface and built-in decoding logic, reducing the number of pins required compared to parallel interfaces. The HD7279A-WP can also be connected to a keypad matrix with up to 8 keys, offering a cost-effective solution for combined LED display and button control functionality in a single chip.
Key Features:
- Drives up to 8 common-anode LEDs for numeric or alphanumeric displays
- Serial interface (SPI compatible) for efficient data transfer
- Built-in scanning circuitry eliminates the need for external decoders
- Optional keypad matrix interface for up to 8 keys (reduces component count for combined display and button control)
- Wide operating voltage range (typically 5V to 15V)
- Low power consumption
Technical Specifications:
- Package Type: SOP-16
- Input Voltage: 5V to 15V (typical)
- Output Current:10mA to 20mA.
- Serial Interface: SPI compatible
- Keypad Matrix: Up to 8x1 (8 rows, 1 column)
- Operating Temperature Range: 0°C to +70°C
Applications:
- LED displays for clocks, timers, meters, and other electronic devices
- Simple control panels with LED readouts and button inputs
- Educational and hobbyist projects with LED displays
Category:
LED Driver ICs / Display Driver ICs