Ultra-Small: Flexible LED Expansion Reference Design
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 VExpands 3 general purpose output pins to 64+outputsAllows custom character displays on sevensegmentsIndefinitely expandable to additional sevensegments8×8 LED Matrix with expandable outputsCompatible with 2.5-V and 3.3-V standard logic outputs
Applications
- LED signage
- Remote power distribution automation
- Signal generator
- Eye
- ear
- nose & throat exam
- AC analog input module
- Compact relay
- Stage lighting
Product Categories
- Flip-flops
- latches & registers