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 (...)
主要特色
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
举报
