Keszoox

Bi-Directional Logic Level Converter — 4/8-Way, 5V ↔3.3V, UART/I²C/SPI, Anti-Reverse

Bi-Directional Logic Level Converter 4/8-Way, 5V ↔3.3V, UART/I²C/SPI, Anti-Reverse

$6.80 USD

Save Liquid error (snippets/price line 138): divided by 0% Sold out

Taxes included. Shipping calculated at checkout.

Color

Quantity

Bi-Directional Logic Level Converter — 4/8-Way, 5V ↔3.3V, UART / I²C / SPI, Anti-Reverse

This MOSFET-based bidirectional logic level converter safely translates signals between 5V and 3.3V logic systems in both directions simultaneously. Available in 4-channel and 8-channel versions, it supports UART, I²C, SPI, and 1-Wire protocols, making it the essential interface module when connecting 5V Arduino boards to 3.3V sensors, displays, and modules.

Key Specifications

Parameter	Value
Channels	4-way or 8-way (variant dependent)
High-Side Voltage (HV)	5V (or up to 10V)
Low-Side Voltage (LV)	3.3V (or 1.8V–3.3V)
Translation Type	Bidirectional (MOSFET-based)
Protocol Support	UART, I²C, SPI, 1-Wire
Onboard LDO	3.3V LDO regulator included
Anti-Reverse Protection	Yes

Wiring Guide

HV → 5V (high-voltage side power)
LV → 3.3V (low-voltage side power)
GND → Common ground
HVx → 5V device signal pin
LVx → 3.3V device signal pin

Why Choose This Level Converter?

✅ MOSFET-based bidirectional — works with I²C open-drain and push-pull signals
✅ 4-way and 8-way options — choose based on number of signal lines needed
✅ Onboard 3.3V LDO — powers 3.3V side directly from 5V supply
✅ Anti-reverse protection — prevents damage from accidental reverse connection
✅ I²C compatible — open-drain MOSFET design works with I²C pull-up resistors