Ultra-Small, Flexible LED Expansion Reference Design
TIDA-01233
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Description
This document focuses on two reference designs using the SN74HC595B 8-bit Shift Register with 3-State Output Registers and the SN74LVC244A Octal Buffer with 3-State Outputs, each used to expand three general purpose outputs on a microcontroller to eight or more general purpose outputs. Both devices are available in the ultra-small X2SON package. The Seven Segment Driver Reference Design focuses on individually controlling the eight LEDs in seven-segments with hardware that fits underneath the display module. This 8×8 LED Matrix Reference Design focuses on driving 64 LEDs arranged as an 8×8 matrix display that could be panelized to create larger displays.
Features
- Wide voltage supply range of 2 V to 3.6 V
- Expands 3 general purpose output pins to 64+outputs
- Allows custom character displays on sevensegments
- Indefinitely expandable to additional sevensegments
- 8×8 LED Matrix with expandable outputs
- Compatible with 2.5-V and 3.3-V standard logic outputs
See the Important Notice and Disclaimer covering reference designs and other TI resources.
