As digital devices get smaller and faster, once ubiquitous 5 V logic has given way to ever lower-voltage standards like 3.3 V, 2.5 V, and even 1.8 V, leading to an ecosystem of components that need a little help talking to each other. For example, a 5 V part might fail to read a 3.3 V signal as high, and a 3.3 V part might be damaged by a 5 V signal. This level shifter solves these problems by offering bi-directional voltage translation of up to four independent signals, and its compact size and breadboard-compatible pin spacing make it easy to integrate into projects.

Technical Specifications:
Dual-supply bus translation :
Lower-voltage (LV) supply can be 1.2 V to 3.6 V
Higher-voltage (HV) supply can be 1.65 to 5.5 V
Four bi-directional channels
Small size: 15 mm × 13 mm/0.59″ × 0.51″(L×W)
Breadboard-compatible pin spacing
Voltage input pins : 2 pins (GND and LV) on Low Voltage side; 2 pins (GND and HV) on High Voltage side
Data channels : 4 pins (LV1, LV2, LV3, and LV4) on Low Voltage side; 4 pins (HV1, HV2, HV3, and HV4) on High Voltage side

NOTE :
Voltage supplied to the HV and GND inputs should be higher than that supplied to the LV side; Level shifters are purely digital, they can't map an analog voltage from one max voltage to another.

Package includes:
5 x 4 Chanels High speed Bi-Directional 3.3V-5V Logic Level Converter
Each set contains: 1x Logic Level Converter；2x Single Row Pin Header(6 pins)