SCLA017A July   2019  – April 2021 SN74HC595

 

  1.   Trademarks
  2. 1Block Diagram
  3. 2Optimizing System Controller I/O Usage
  4. 3Logic and Translation Use Cases
    1. 3.1 Logic Use Cases
      1. 3.1.1 Combine Power Good Signals
      2. 3.1.2 Debounce Switches and Buttons
      3. 3.1.3 Increase Number of Controller Inputs
      4. 3.1.4 Increase Number of Controller Outputs
    2. 3.2 Voltage Translation Use Cases
      1. 3.2.1 SPI Communication
      2. 3.2.2 RMII Communication
  5. 4Recommended Logic and Translation Families for Network Switches
    1. 4.1 AXC: Advanced eXtremely Low-Voltage CMOS Translation
    2. 4.2 LVC: Low-Voltage CMOS Logic and Translation
    3. 4.3 HC: High-speed CMOS Logic
  6. 5Revision History

3.1.4 Increase Number of Controller Outputs

GUID-5B0C0B66-3B61-4FA9-AC57-1D12C04EA5F9-low.gifFigure 3-4 Using Two Shift Registers to Control 16 LEDs with Three Signals (Data, Shift Clock, and Output Register Clock)
  • Turn as few as two outputs into 8 outputs with one serial-in parallel-out shift register
  • Daisy chain shift registers to produce large numbers of outputs
  • Drive low-current (< 8 mA) LEDs directly
  • See online parametric search tool to find the right Shift Register