5 Pcs 3.3V 5V TTL Bi-directional Logic Level Converter For     Feature:    2 channels of high-voltage logic and low-voltage logic bilateral switching
  2-channel of high-voltage logic switch low voltage logic  into unitary transformation
  Size: 15.5mm x 16mm x 11.5mm
  Module is compatible with the breadboard, it can be put on the breadboard directly    
Description:    High Voltage: 5V
  Low Voltage: 3.3V
  GND for negative power
  5V TTL RXI input, 3.3V TTL RXO output
  TXI input/output of 3.3 V TTL, TXO input/output 5 V TTL, TXI and TXO bilateral switching    
Package included:    5 x Logic Level Converter  
   
   
   
   
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